Reaction Time & Reflex vs Big Two 大老二
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Reaction Time & Reflex
Test and train your reflexes with a collection of fun mini-games. Measure your reaction speed in milliseconds, track your progress with detailed graphs, and compete with players worldwide on leaderboards. Challenge friends in 2-player duels.
- Reaction time testing
- Reflex training mini-games
- Progress tracking with graphs
- Global leaderboards
- 2-player duels
- Achievements
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How fast are your reflexes? RTap is a reaction time test and reflex trainer packed into 10 fun mini-games. Measure your reaction speed in milliseconds, train every day, watch your progress on graphs and compete with players around the world on the leaderboards. TEST YOUR REACTION TIME Tap the moment you see or hear the signal and get your reaction time in milliseconds. Start with classic tests for visual signals, sound and a race start, then take on harder challenges: pick the right color, avoid the traps, find the emoji and catch what falls. See how your results compare with other players. TRAIN YOUR REFLEXES AND FOCUS Games that call for quick decisions, focus and hand-eye coordination reward practice the most. Play a few rounds a day and watch your scores and consistency go up. 10 GAMES, 30 MODES • Simple Reaction – classic reaction time tests: race start, vision and audio • Color Chooser – tap the right color as fast as you can • Text and Color – a tricky color-word challenge for your brain • Don't Tap Red – react fast, but don't fall for the trap • Sliders – tap at the correct time, • Emoji Finder – spot the right emoji in a crowd • Swiping Games – swipe in the right direction • Falling – catch what falls before it hits the ground • Whack-a-Mole – the arcade classic, built for speed • Time Stop – stop the clock at exactly the right moment Many games come with several difficulty levels, so there is always a new record to chase. COMPETE ON 30 LEADERBOARDS Every mode has its own global leaderboard. See your rank, how many places you climbed and what percentage of players you beat. 63 ACHIEVEMENTS Unlock medals and trophies for hitting target times, mastering difficulty levels and staying consistent. TRACK YOUR PROGRESS WITH GRAPHS Detailed stats and charts show how your reaction speed improves day by day. 2 PLAYER DUELS Challenge a friend on the same device. Both react to the same signal: the faster one wins the round. QUESTIONS AND ANSWERS What is a good reaction time? Most people react to a visual signal in about 200–300 ms. Under 200 ms is very fast. Reactions to sound are usually a bit quicker than reactions to light. Can you improve your reaction time? Yes, to a point. Raw reaction speed improves a little with practice, mostly in the first few sessions. Consistency and reactions that involve a decision, like picking the right color or ignoring a trap, improve much more. Good sleep and staying focused help too. How does RTap measure reaction time? It measures the time between the signal appearing on screen (or the sound playing) and your tap, and shows the result in milliseconds. Your phone's screen and touch sensor add a small delay of their own, so results can vary between devices. Who is RTap for? Anyone who wants faster reflexes: gamers, athletes, drivers, students, or anyone who simply wants to know how fast they are. Can I play with friends? Yes. Play a 2 player duel on one device, or compare your scores with friends on the leaderboards. Start training your reaction time now! Privacy Policy: https://mrjohn10.github.io/rtap/privacy-policy Terms of Use (EULA): https://mrjohn10.github.io/rtap/terms-of-service
Big Two 大老二
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Learn Big Two by playing it. Short visual lessons teach card order, legal combinations, five-card hands, passing, and table strategy. Practice each idea with real cards, then take your seat against bots or friends. PLAY THE WHOLE TABLE • Play clear, fast Big Two rounds • Start with guided lessons made for beginners • Challenge bots or join live tables • Host a private game and invite friends by link, code, or QR • See who is invited, joined, and ready • Requeue or ready up for the next game in one tap FOLLOW EVERY MATCH • Review round-by-round scores • See the cards played in each round • Open full match summaries and player history • Track complete stats, rating, wins, losses, and forfeits • Climb the ranked leaderboard STAY CONNECTED • Find friends by name or email • Receive friend requests and game invitations • Return to a queue or active table from the in-app banner • Choose which game, friend, news, and promotion notifications you receive The game is also known as Big 2, Big Deuce, Deuces, Top Dog, Chinese Poker, 大老二 (Da Lao Er), 鋤大弟 or Chor Dai Di, Co Daai Di, Dai Di, Sho Tai Ti, Capsa or Cap Sa, Thirteen, Ciniza, Giappuniza, Pusoy Dos, Chikicha, Sikitcha, Filipino Poker, and Mot Hai Ba. Names and house rules vary by region. The goal is simple: be the first player to shed every card. The decisions are anything but. Music credits: https://big2.nostalgic.studio/credits Music: “Superepic” by Alexander Nakarada (https://creatorchords.com), licensed under CC BY 4.0: https://creativecommons.org/licenses/by/4.0/. Edited to the first 6 seconds. Music: “Cinematic Minimal Orchestral Percussion Trailer” by Gregor Quendel, licensed under CC BY 4.0: https://creativecommons.org/licenses/by/4.0/. Source: https://opengameart.org/content/free-cinematic-trailer-music. Used unmodified.
Screenshots
Verdict
The clearest difference is in-app purchases: Big Two 大老二 at none against Reaction Time & Reflex's 10. Big Two 大老二 also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Reaction Time & Reflex sells 7 in-app purchases, starting at $2.99 per 7 days. Big Two 大老二 asks for nothing beyond the download.
Reaction Time & Reflex ships an update every 2 weeks, Big Two 大老二 every 2 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Reaction Time & Reflex | Big Two 大老二 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (222 ratings) — better | — |
| Positive reviews | 56.0% of reviews | — |
| Number of ratings | 222 — better | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.3 — better | 16.4 |
| Further details — not scored | ||
| Size | 71 MB | 56 MB |
| Age rating | 12+ | 12+ |
| Developer | Jan Augustyniak | Nostalgic Studio LLC |
Bugs and requests
Reaction Time & Reflex
Reported bugs
5 issues- Horrid hit registration on falling circles
- App tracks location
- Pro version error #3
- Sound not working
- Lagging with good network
Requested features
5 requests- Colorblind mode
- More free games
- Unlock games in-game
- Fix falling circles minigame
- Geometry Dash game
Big Two 大老二
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Reaction Time & Reflex
- Unlimited Access$2.997 Days
- Unlimited Access3 Days trial$4.991 Month
- Unlimited Access3 variants$4.997 Days
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- Unlimited Access3 Days trial$7.991 Month
- Unlimited Access3 Days trial2 variants$19.991 Year
- Unlimited Access$14.99
- Unlimited Access$29.99
Big Two 大老二
No in-app purchases
Questions
Is Reaction Time & Reflex free?
Is Big Two 大老二 free?
Do Reaction Time & Reflex or Big Two 大老二 have ads?
Which is updated more often, Reaction Time & Reflex or Big Two 大老二?
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