Unlock Circle vs Reaction Time & Reflex
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Unlock Circle
This game tests your reflexes and concentration by requiring precise taps as a line approaches a dot. It's designed to improve finger speed and brain coordination through engaging gameplay.
- Tap to align line with dot
- Challenges reflexes
- Improves finger speed
- Tests brain coordination
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Tap the moment the needle touches the dot. One tap, perfect timing, and the lock clicks open. Unlock Circle is back with its biggest update since 2016. The original one-tap reflex game is still here as Classic, now joined by four new modes, seven target types, boss locks and a Daily Lock that everyone plays together. How to play • A needle spins around the ring. Tap the moment it touches the dot. • Missed? You'll see how many milliseconds too early you tapped, or why the run ended. Five modes • Classic: the original 2016 game. Every hit is a move, and one miss ends the run. • Endless+: hit the white center of the dot for a Perfect. Build your combo up to ×4, and land 8 Perfects in a row to fire up fever mode. • Rhythm: targets land on the beat of the music, and the tempo keeps rising. • Daily Lock: the same lock for everyone, one scored attempt a day. Keep your streak alive and share your result. • Locks: 8 worlds × 10 stages, 80 stages in all. Earn up to 3 stars on every stage and beat the boss lock at the end of each world. Seven target types • Dot, double dot, sliding dot, trap, arc (press and hold), shield (two hits) and direction arrow. • In the Treasure Vault you play with two rings and two needles. Collect and unlock • Collect keys and unlock new needle styles. • Defeat bosses to grow your lock collection. • Three daily quests, achievements and Game Center leaderboards. Play your way • Free to play. After a miss, you can watch one ad to continue once. No in-app purchases. • Sound, music and vibration settings. • Follows your device's Reduce Motion setting. How fast are your reflexes? Download Unlock Circle and open your first lock!
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
Screenshots
Verdict
The clearest difference is in-app purchases: Unlock Circle at none against Reaction Time & Reflex's 13. Unlock Circle also leads on review sentiment (75% vs 58%). Reaction Time & Reflex's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 65 months). On price, 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 9 in-app purchases, starting at $2.99 per 7 days. Unlock Circle asks for nothing beyond the download.
Unlock Circle ships an update every 65 months, Reaction Time & Reflex every 2 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | Unlock Circle | Reaction Time & Reflex |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (220 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 57.9% of reviews |
| Number of ratings | — | 220 — better |
| Update frequency | Every 65 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.3 |
| Further details — not scored | ||
| Size | 30 MB | 71 MB |
| Age rating | 4+ | 12+ |
| Developer | ARDEVTEK YAZILIM | Jan Augustyniak |
Customer experience
Unlock Circle
Reaction Time & Reflex
Bugs and requests
Unlock Circle
Not enough reviews yet to summarise bugs or 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
In-app purchases
Unlock Circle
No in-app purchases
Reaction Time & Reflex
- Unlimited Access$2.997 Days
- Unlimited Access3 Days trial2 variants$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$19.991 Year
- Unlimited AccessFree
- Unlimited Access$14.99
- Unlimited Access$29.99
Questions
Is Unlock Circle free?
Is Reaction Time & Reflex free?
Do Unlock Circle or Reaction Time & Reflex have ads?
Which is updated more often, Unlock Circle or Reaction Time & Reflex?
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