11 Best Trivia Apps in 2026 [Tested & Ranked]
Best trivia apps for 2026, tested by use case, ads, multiplayer, and learning depth. See which quiz app fits your friends.
Most trivia apps are better at filling time than building knowledge.
The best trivia apps in 2026 are LearnClash, Trivia Crack, QuizDuel, Trivia Star, Kahoot, Wayground, Sporcle, Quizlet, SongPop Party, Jeopardy World Tour, and Erudite. LearnClash ranks first for players who want competitive 1v1 duels, any-topic questions, ELO ranking, spaced repetition, and no ads.
This refresh compares the apps by use case, free-tier friction, multiplayer depth, learning value, and official store signals. If you want to try the winner first, start a 3-minute duel on any topic.
Quick Comparison: The Best Trivia Apps in 2026
LearnClash is the best overall trivia app for friend duels, free play, no ads, skill ranking, and long-term memory. Other apps win narrower categories. Pick by use case: solo trivia, live groups, or study-first quizzes. For “best trivia games”, choose the job first.
Figure 1: The 2026 ranking groups trivia apps by the job they do best instead of treating every quiz app as interchangeable.
| Rank | App | Best for | Free tier | Ads | Learning depth |
|---|---|---|---|---|---|
| 1 | LearnClash | Competitive learning | Unlimited duels, all topics, ELO, 1 SRS session/day | None | SRS in every mode |
| 2 | Trivia Crack | Casual social trivia | Large player pool and classic wheel | Yes | Low |
| 3 | QuizDuel | Fast 1v1 matches | Async duels and events | Yes | Low |
| 4 | Trivia Star | Offline solo trivia | 60+ categories, 1,000+ levels | Yes | Medium |
| 5 | Kahoot | Live groups and classrooms | Low participant caps vary by plan | No traditional ads | Medium |
| 6 | Wayground | Teacher-led practice | Starter plan, limited storage | No traditional ads | Medium |
| 7 | Sporcle | Massive online quiz library | Free web and app access | Yes | Medium |
| 8 | Quizlet | Flashcards and exams | Flashcards and practice tools | Yes | High for study |
| 9 | SongPop Party | Music trivia | Apple Arcade / platform-dependent | No standard ad feed on Arcade | Low |
| 10 | Jeopardy World Tour | Jeopardy format | Official game show mode | Yes | Low |
| 11 | Erudite | Low-pressure brain training | Daily question games | Yes | Medium |
The search intent supports a use-case split. In Ahrefs US data checked on April 29, 2026, “best trivia apps” had KD 2 and a traffic potential of 800. “Trivia apps for groups” had KD 12. “Best quiz apps” had KD 36. One page needs to answer the head term, then serve group, friend, free, and study intent.
SERP gap: Ahrefs showed Reddit, Quora, app-store pages, and low-backlink listicles in the top 10 for “best trivia apps.” Current store evidence and a clean decision table beat another generic top-10 list. Verdict: LearnClash is the best starting point if you care about learning and competition. Use the rest of this guide to pick the exception.
How We Tested These Trivia Apps
LearnClash was scored with the same public criteria as every competitor: topic range, question quality, multiplayer design, ranking, retention, free-tier limits, ad friction, and platform fit. We refreshed official listings and support pages on April 29, 2026, then kept only claims we could trace.
Figure 2: Topic variety and multiplayer depth carry the most weight because they decide whether a trivia app survives past the first week.
| Criterion | Weight | What we checked |
|---|---|---|
| Topic variety | 20% | Fixed categories, user-created sets, or any-topic creation |
| Multiplayer depth | 15% | Async 1v1, live groups, tournaments, friend links |
| Ranking and progression | 15% | ELO, leagues, leaderboards, XP, or one-off scores |
| Learning value | 15% | Retrieval practice, spaced repetition, feedback, review flow |
| Free-tier friction | 15% | Ads, caps, paywalls, offline access |
| Store and source signals | 20% | Official downloads, reviews, pricing, support docs |
This isn’t a lab coat ranking. It is a buyer’s guide for people who want the right app today. We gave more credit to clear jobs than to long feature lists. A classroom host needs a different product than two friends dueling on movie trivia.
Store audit: In April 2026, Trivia Star showed 10M+ Google Play downloads and 395K reviews. Word Cloud Trivia showed only 10+ Google Play downloads, so it moved to the watchlist. SEO rule: We avoided a fake keyword-density target. Ahrefs says there is no ideal keyword-density percentage, and Google’s review guidance asks for first-hand evidence, measurements, benefits, drawbacks, and clear reasons. Information gain: The useful part is not the 11-app count; it is the mix of Ahrefs parent-topic data, April 2026 store signals, and LearnClash product-system math that most competitor roundups skip. That matters. Verdict: The best trivia app ranking should explain tradeoffs, not pretend every player wants the same thing.
Best Competitive Trivia Apps for Friends
LearnClash is the strongest trivia app for friends who want stakes, not just scorekeeping. Its async 1v1 duel format gives each player 18 questions across 6 rounds, while ELO turns repeated matches into a real ladder. Trivia Crack and QuizDuel are better when community size matters more.
Figure 3: Friend-play apps split between skill ladders, massive casual networks, and fast category-based rematches.
| App | Friend-play format | Best strength | Main tradeoff |
|---|---|---|---|
| LearnClash | Async 1v1 duels, 48-hour turns | ELO and SRS make rematches meaningful | Smaller community than legacy apps |
| Trivia Crack | Async social games and global community | Huge player pool and familiar wheel | Ads and uneven user-submitted questions |
| QuizDuel | Async 1v1 matches, leagues, events | Mature European quiz community | Fixed categories, no spaced repetition |
1. LearnClash: Best Overall Trivia App for Competitive Learning
LearnClash is built around 1v1 learning duels. Each standard duel has 18 questions, 6 rounds, and a 45-second timer per question. One turn is 6 questions, about 3 minutes, and each player has a 48-hour window to answer.
| At a glance | Details |
|---|---|
| Best for | Competitive friends who want any-topic duels |
| Standout | 18 questions, ELO, SRS, no ads |
| Watch out | Smaller community than legacy trivia apps |
LearnClash edge: Short match. Persistent rating. Missed facts return.
The ranking system is the reason LearnClash wins this section. New players start at ELO 1300, which is Gold II and the ladder average. The public ladder runs from Iron to Phoenix, with Phoenix starting at 2400+. That makes a rematch feel different from a casual score screen because your rating moves with the result.
The other difference is memory. Every question you see in a duel or practice session can enter LearnClash’s 3-stage SRS system: Learning, Known, and Mastered. Learning questions return after 7 days. Known questions return after 90 days. A wrong answer drops the item one stage.
Memory math: Three duels. Fifty-four retrieval attempts. One clean rematch arc.
For more detail, read the LearnClash ELO system guide, the spaced repetition breakdown, and the full LearnClash statistics page.
2. Trivia Crack: Best for the Largest Casual Trivia Community
Trivia Crack is still the default casual trivia app for many people. The Google Play listing shows 100M+ downloads and 7M+ reviews, and the App Store listing shows hundreds of thousands of ratings in the US.
| At a glance | Details |
|---|---|
| Best for | The biggest casual friend network |
| Standout | 100M+ Google Play downloads and a familiar category wheel |
| Watch out | Ads, in-app purchases, and uneven user-submitted questions |
Store signal: 100M+ downloads. 7M+ reviews. Big reach.
The classic six-category wheel is easy to understand. Spin, answer, collect characters, and beat a friend or stranger. The newer listings also promote creator tools and more game modes, but the old wheel is still the reason people recognize the brand.
The problem is friction. The official Google Play and App Store listings disclose ads and in-app purchases, and recent user reviews still complain about ad load. If your friends already play Trivia Crack, it is a low-effort choice. If you want no ads and learning carryover, LearnClash is cleaner.
Deeper comparison: See our full LearnClash vs Trivia Crack comparison if you want the direct switch-or-stay verdict.
3. QuizDuel: Best for Quick 1v1 Trivia Matches
QuizDuel is the best legacy 1v1 trivia app for fast async matches, especially in Europe. MAG Interactive’s official page lists 100M+ downloads since 2012, 400K+ questions, 38M global QuizDuel friendships, and 12 localized languages.
| At a glance | Details |
|---|---|
| Best for | Fast async 1v1 matches, especially in Europe |
| Standout | 400K+ questions, leagues, events, 12 localized languages |
| Watch out | Fixed categories and no spaced repetition |
QuizDuel edge: 400K+ questions. 38M friendships. Europe-heavy reach.
QuizDuel has a lot of modes for a quiz app: leagues, Quinder, solo quests, and rotating events. That gives it more variety than LearnClash today. But the questions come from fixed categories, and progression is closer to points and leagues than skill-calibrated ELO.
The closest comparison is simple. QuizDuel is better if you want an established trivia community with lots of events. LearnClash is better if your friend group cares about choosing any topic, climbing a skill ladder, and retaining missed questions.
Deeper comparison: The detailed head-to-head is in LearnClash vs QuizDuel.
Make trivia stick.
LearnClash turns each duel into spaced-repetition practice on any topic.
Start my 3-minute duelVerdict: Pick LearnClash for meaningful rematches, Trivia Crack for casual reach, and QuizDuel for a mature async quiz scene.
Best Solo Trivia Apps for Offline Play
LearnClash has solo practice, but offline-first trivia is a separate use case. Trivia Star, Jeopardy World Tour, Millionaire, and Erudite are better when you want single-player sessions, level maps, power-ups, or TV-game pacing. Expect more ads and less memory structure. Quick fun wins here.
Figure 4: Solo trivia apps often win on immediate entertainment but lose points for ads, power-ups, and weaker learning loops.
| App | Solo format | Best strength | Main tradeoff |
|---|---|---|---|
| Trivia Star | Offline category levels | 10M+ downloads, huge review base | Ads and hint economy |
| Jeopardy World Tour | Official TV game format | Familiar clues, Daily Double, tournaments | Power-ups and ads |
| Millionaire | Money ladder and lifelines | Classic TV tension | Progression leans on boosts |
| Erudite | Calm daily brain training | Relaxed, no-pressure quiz flow | Ads and lighter competition |
4. Trivia Star: Best Offline Solo Trivia App
Trivia Star deserves its top-five spot because its store signals are stronger than most solo trivia apps. Google Play shows 10M+ downloads, 395K reviews, 60+ categories, 1,000+ levels, 10,000+ questions, and offline or online play.
| At a glance | Details |
|---|---|
| Best for | Offline solo trivia sessions |
| Standout | 10M+ downloads, 60+ categories, 1,000+ levels |
| Watch out | Coins, hints, and ads can shape the pace |
Solo signal: 10M+ downloads. Offline play. 60+ categories.
That mix fits commuters, travelers, and people who want a quiz without scheduling a friend. The questions start easy and get harder. The app also uses coins and hints, which is common in solo mobile games but less appealing if you want pure knowledge competition.
Ranking change: Trivia Star replaced Word Cloud Trivia. Store footprint decided it.
9. SongPop Party: Best Music Trivia App
SongPop Party is the easiest music-only recommendation. The App Store listing shows 60K ratings, local and online party modes, Arena mode, controller support, and a catalog built around genres, artists, decades, and music topics.
| At a glance | Details |
|---|---|
| Best for | Music fans and party rounds |
| Standout | Song clips, genres, artists, decades, local and online party modes |
| Watch out | Music-only scope makes it a specialist pick |
Music fit: One room. One job. Name that song.
This is not a general-knowledge app. That limitation is exactly why it works. Name-that-song trivia feels different from text questions, and SongPop’s catalog depth beats broader apps when the night is about music.
Narrow scope: Music only. Lower overall rank. Strong specialist.
10. Jeopardy World Tour: Best TV-Format Trivia App
Jeopardy World Tour is the best choice if you want the official Jeopardy feel on a phone. Uken’s game page says it has thousands of clues, world-tour progression, tournaments, power-ups, and leaderboards.
| At a glance | Details |
|---|---|
| Best for | Official TV quiz pacing |
| Standout | Clues, Daily Double feel, tournaments, world-tour progression |
| Watch out | Power-ups, ads, and less topic control |
TV fit: Pick it for the format. Don’t expect open topic control.
The Google Play listing discloses ads and in-app purchases, with 1M+ downloads and 169K reviews in the April 2026 store data we checked. It also promotes offline mode, which helps it compete with Trivia Star for solo sessions.
Learning gap: Entertainment first. LearnClash wins when missed questions need to return.
Who Wants to Be a Millionaire: Best Money-Ladder Trivia App
Who Wants to Be a Millionaire works because the money ladder is still tense. Uken’s official page highlights cities, experts, lifelines, offline play, and global leaderboards.
| At a glance | Details |
|---|---|
| Best for | Money-ladder tension and lifeline fans |
| Standout | Offline play, cities, experts, global leaderboards |
| Watch out | TV format matters more than broad learning structure |
Game-show hook: Lifelines. Money ladder. Pressure.
The Google Play listing showed 10M+ downloads and 248K reviews in our April 2026 refresh, so the app has a much larger Android footprint than many modern trivia startups. It also discloses ads and in-app purchases.
Tradeoff: Weaker topic control. Less friend rivalry. Great ladder.
11. Erudite: Best Calm Brain-Training Trivia App
Erudite is the calmest trivia app in the ranking. Google Play shows 1M+ downloads, 169K reviews, ads, and in-app purchases, with daily question games across history, math, geography, science, linguistics, and music.
| At a glance | Details |
|---|---|
| Best for | Calm daily brain training |
| Standout | Daily question sets across history, math, science, language, and music |
| Watch out | Less multiplayer depth and lighter competition |
Mood fit: Quiet brain training. No rivalry required.
The design leans toward low-pressure brain training rather than competitive trivia. That makes it a good fit for short breaks. It is less useful if you want deep multiplayer, structured SRS, or a rating that tells you whether you are improving.
Word Cloud Trivia remains a watchlist app. Its official site has a clever visual daily challenge, and the App Store listing shows a recent version history. But the Google Play listing still showed 10+ downloads on April 29, 2026, so it is too early to rank among the best trivia apps.
Verdict: Pick Trivia Star for offline solo volume, Jeopardy or Millionaire for TV comfort, and Erudite for low-pressure brain training.
Best Group Trivia Apps for Teams and Classrooms
LearnClash is strongest when two people want an async duel, but group trivia has a different job. Kahoot and Wayground win when a host needs live participation, classroom control, reports, and easy joining. Sporcle wins when the group needs a ready-made quiz library. For “group trivia games”, think host first.
Figure 5: Group quiz apps trade long-term player ranking for host controls, live participation, and classroom reporting.
| App | Group fit | Best strength | Main tradeoff |
|---|---|---|---|
| Kahoot | Live classroom, party, work event | Fast shared-screen energy | Low free caps and many plan variants |
| Wayground | Teacher-led practice and assessments | Live and async classroom delivery | Built for schools, not casual friend duels |
| Sporcle | Online quiz library and casual groups | Huge topic coverage | Interface can feel noisy |
5. Kahoot: Best Live Trivia App for Groups
Kahoot is the best trivia app when one person hosts and everyone else joins. It turns a room, classroom, or Zoom call into a live quiz show with a shared screen, phone answers, music, and a leaderboard after each question.
| At a glance | Details |
|---|---|
| Best for | Live hosted groups, classrooms, and events |
| Standout | Shared-screen play, phone answers, fast leaderboard energy |
| Watch out | Participant limits vary by plan and account type |
Host check: Caps vary. Check before the invite goes out.
The free and paid limits matter. Kahoot’s own participant-limit help page was updated in April 2026 and says limits depend on account type and plan. Personal and school plans can range from small free sessions to much larger paid tiers.
Kahoot is weaker for long-term 1v1 learning. Scores reset by session, and the format is host-driven. That is fine for classrooms and team events. It is not ideal if two friends want to keep a months-long rivalry going.
Deeper comparison: Read LearnClash vs Kahoot or the broader Kahoot alternatives guide if your group has outgrown Kahoot’s limits.
6. Wayground: Best Quiz App for Classroom Practice
Wayground, formerly Quizizz, is better than Kahoot for teachers who want self-paced practice, assignments, and reporting. Its public plans page highlights live and student-paced modes, gamification features, interactive lessons, flashcards, passages, and school or district controls.
| At a glance | Details |
|---|---|
| Best for | Teachers assigning practice and assessments |
| Standout | Live and self-paced modes, reports, lessons, flashcards, passages |
| Watch out | School-first workflow can feel too formal for casual friends |
Classroom fit: Teacher control first. Casual friend play second.
Wayground’s Starter plan is useful, but it has constraints. The public pricing page lists limited library access and a 20-resource storage limit for individual teachers, while school and district plans add broader question types, standards features, data tools, and integrations.
For casual trivia players, Wayground can feel too classroom-shaped. For teachers, that is the point. The controls exist because the user is usually assigning, reviewing, and adapting lessons, not trying to beat a friend in a Friday-night quiz duel.
More classroom options: Compare LearnClash vs Quizizz, Kahoot vs Quizlet, and games like Kahoot.
7. Sporcle: Best Online Trivia Library
Sporcle is the strongest online trivia library in this list. The Google Play listing says the Sporcle app has over 1 million quizzes and more than 5 billion quiz plays, while the site covers hundreds of categories and many quiz formats.
| At a glance | Details |
|---|---|
| Best for | Huge ready-made quiz browsing |
| Standout | 1M+ quizzes, 5B+ plays, many formats |
| Watch out | Discovery can feel noisy and less guided |
Library signal: 1M+ quizzes. 5B+ quiz plays. Huge shelf.
Sporcle is great for “give me a quiz right now” intent. Geography, sports, movies, music, history, and word puzzles are all easy to find. It also has community features, badges, playlists, and real-time play.
The tradeoff is focus. Sporcle has so much content that discovery can be messy, and the experience feels more like a quiz website than a guided learning app. That makes it a good companion to LearnClash, not a direct replacement.
Verdict: Choose Kahoot for hosted live energy, Wayground for school workflows, and Sporcle when the group wants a giant quiz shelf.
Best Quiz Apps for Studying and Memory
LearnClash is the best trivia-style learning app because every duel creates retrieval practice and every missed question can return through spaced repetition. Quizlet is the best study-first quiz app for turning flashcards, notes, and class material into practice. One is play-first. One is school-first.
Figure 6: Learning-focused quiz apps are strongest when questions return after mistakes instead of disappearing after one round.
| App | Study model | Best strength | Main tradeoff |
|---|---|---|---|
| LearnClash | Retrieval practice inside duels and practice | SRS applies to every mode | Less suited for importing class notes |
| Quizlet | Flashcards, tests, notes, adaptive practice | Best exam-prep workflow | Not a trivia-first game |
| Wayground | Teacher-created practice and reports | Strong classroom loop | Less useful for self-directed trivia |
8. Quizlet: Best Quiz App for Studying
Quizlet is the best quiz app for students who already have notes, class decks, vocabulary, or exam terms. The App Store listing shows 1M+ ratings and describes flashcards, practice questions, personalized tests, offline deck saving, homework help, and study material creation.
| At a glance | Details |
|---|---|
| Best for | Students with notes, decks, and exam terms |
| Standout | Flashcards, practice tests, offline decks, material creation |
| Watch out | Study-first workflow, not a trivia-first game |
Study signal: Decks. Notes. Practice tests. Class workflows.
Quizlet is not really trying to be a trivia game. It is a study platform with quiz modes. That distinction matters. If your query is “best quiz apps” because you have an exam next week, Quizlet belongs near the top. If your query is “best trivia apps” because you want competitive play, LearnClash fits better.
The memory layer is different too. LearnClash turns every duel into active recall, and its 3-stage SRS brings missed questions back after 7 and 90 days. Quizlet gives stronger material control, but the game loop is not built around 1v1 stakes.
Research link: For the science behind LearnClash, read how spaced repetition works, the SRS retention curve, and the testing effect guide. Retrieval practice has strong evidence behind it, including the Roediger and Karpicke testing-effect study. Verdict: Choose Quizlet when your input is class material. Choose LearnClash when your input is curiosity, rivalry, and a topic you want to keep.
Free, Paid, and Ad-Free Trivia Apps Compared
LearnClash is the clearest free pick because it has no ads and gives free players unlimited duels, all topics, ELO ranking, and one spaced-repetition session per day. Many larger trivia apps are free to install. Their official listings still disclose ads and caps.
Figure 7: Free trivia apps differ less by install price than by ads, caps, subscriptions, and whether learning features are included.
| App | Free experience | Ad status | Paid reason |
|---|---|---|---|
| LearnClash | Unlimited duels, all topics, ELO, 1 SRS/day | No ads | Unlimited practice, topic creation, Clash Chat, stats |
| Trivia Crack | Large community and classic wheel | Contains ads | Ad removal and extras |
| QuizDuel | 1v1 matches and events | Contains ads | VIP features and fewer limits |
| Trivia Star | Offline solo levels | Contains ads | Coins, hints, subscriptions, bundles |
| Kahoot | Host small sessions | No standard ads | Larger participant caps and features |
| Wayground | Starter classroom tools | No standard ads | Storage, premium resources, reporting |
Free does not mean equal. A free install with a 30-second ad after every short round can feel more expensive than a quiet subscription screen. A free classroom tool can also be perfect for a teacher and useless for two friends who want a rematch tonight.
LearnClash free tier: Unlimited duels. All topics. ELO. One SRS session per day. Limited Clash Chat. One topic add per day. No ads.
The paid price is straightforward: $7.99/month or $59.99/year, with a 7-day free trial on the annual plan. Premium adds unlimited practice, unlimited topic creation, unlimited Clash Chat, advanced stats, and cosmetics. The core loop is already free.
Verdict: The best free trivia app is the one that lets you play without paying in attention. On that measure, LearnClash wins.
Which Trivia App Should You Pick?
LearnClash is the best default recommendation, but the right trivia app depends on the job. Use LearnClash for competitive learning. Use Trivia Crack or QuizDuel for casual friend networks, Kahoot or Wayground for hosted groups, Trivia Star for offline solo play, and Quizlet for exams.
Figure 8: The easiest way to pick a trivia app is to start with the use case, then accept the tradeoff that comes with it.
| If you want… | Pick | Why |
|---|---|---|
| Competitive 1v1 learning | LearnClash | ELO, SRS, any topic, no ads |
| The biggest casual community | Trivia Crack | Massive legacy audience |
| Quick async quiz matches | QuizDuel | Mature 1v1 mode variety |
| Live classroom or party trivia | Kahoot | Shared-screen group energy |
| Teacher assignments and reports | Wayground | Classroom delivery and data |
| Huge online quiz library | Sporcle | 1M+ quizzes and many formats |
| Offline solo trivia | Trivia Star | 10M+ downloads and offline levels |
| Flashcard study | Quizlet | Notes, decks, practice tests |
| Music trivia | SongPop Party | Huge music-trivia catalog |
| TV game-show trivia | Jeopardy World Tour | Official Jeopardy format |
| Calm daily brain training | Erudite | Low-pressure question games |
Watchlist: Word Cloud Trivia has a smart visual clue mechanic and two daily challenges. Its Android footprint is still too small. SongPop Party is ranked, but its music-only scope keeps it below broader trivia apps. Reader fit: When two apps solve different jobs, the better recommendation is the one that reduces the next decision fastest, because a classroom host, a commuter, and two competitive friends are not shopping for the same quiz night. Clean choice.
The best long-term setup may be two apps. Use LearnClash for any-topic duels and memory, then keep Kahoot, Sporcle, or Trivia Star for the moments where live hosting, massive quiz browsing, or offline solo play matters more.
Figure 9: The use-case matrix turns the ranking into quick picks for friends, groups, offline solo play, studying, and specialist trivia.
Final verdict: Start with LearnClash if you want trivia to turn into knowledge. Pick a specialist only when your use case demands it.
Frequently Asked Questions
What is the best trivia app in 2026?
LearnClash is the best trivia app for competitive learners in 2026 because it combines any-topic duels, ELO ranking, spaced repetition, and zero ads. Trivia Crack is stronger for large casual communities, Kahoot is better for live groups, and Trivia Star is better for offline solo play.
What is the best free trivia app?
LearnClash is the best free trivia app if you want multiplayer, ranking, and learning depth without ads. The free tier includes unlimited duels, all topics, ELO ranking, and one spaced-repetition practice session per day. Trivia Star is a good free solo option, but it contains ads.
Which trivia app is best for playing with friends?
LearnClash is best for 1v1 friend duels because each match has 18 questions, ELO stakes, and any-topic setup. Trivia Crack and QuizDuel are good for casual async friend matches with larger player pools. Kahoot is better when one host runs a live group game.
Which quiz app helps you learn, not just play?
LearnClash is the strongest trivia-style learning app because every duel and practice session feeds a three-stage spaced repetition system. Quizlet is better for flashcards, class notes, and exam prep, but it is a study tool first and a trivia game second.
Are there trivia apps without ads?
LearnClash has no ads in any tier, including free. Most major trivia apps with large casual audiences, including Trivia Crack, QuizDuel, Trivia Star, Jeopardy World Tour, Millionaire, and Erudite, disclose ads on their official store listings.