Comparison

Unlock Circle vs Reaction Speed Reflex Trainer

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Tap to align line with dot
  • Challenges reflexes
  • Improves finger speed
  • Tests brain coordination
Features
Read full description

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!

About

Reaction Speed Reflex Trainer

Sharpen your reflexes and boost reaction speed with engaging game modes. Measure your reaction time to the millisecond, compete on global leaderboards, and track your progress. Ideal for improving focus, training reflexes, or simply for fun.

Highlights
  • Reaction time measurement
  • Multiple game modes
  • Global leaderboards
  • Progress tracking
  • Focus and reflex training
Features
Read full description

Boost your reaction speed and sharpen your reflexes with the ultimate Reaction Time Test app! Designed for simplicity and fun, this app puts your reaction time to the ultimate test. Tap the moment the screen changes from red to green and see your reactions measured down to the millisecond. Explore exciting game modes that challenge your reflexes and reaction skills: Classic Reaction Test: Tap the moment the screen turns green. Lights Out: Inspired by Formula 1, react to the lights turning off as quickly as possible. Chimp Test: Test your memory and reactions simultaneously in this unique challenge. Aim Game: Hit 30 targets as fast as you can to test your speed, precision, and reactions. The Hole: A fun twist that combines accuracy and reaction timing. Compete with others by climbing the reaction leaderboards and comparing scores with players worldwide. Track your reaction progress, smash your personal best, and see your reaction time improve with every game mode. Whether you’re improving focus, training reflexes, or just having fun, this app is the ultimate tool to train and test your reaction time. Download now to test, train, and dominate your reactions! EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Unlock Circle4 screens
Reaction Speed Reflex Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Unlock Circle at none against Reaction Speed Reflex Trainer's 4. Unlock Circle also leads on review sentiment (75% vs 53%). Reaction Speed Reflex Trainer's advantage is update cadence (every 3 months vs every 65 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Reaction Speed Reflex Trainer sells 4 in-app purchases, starting at $0.99 per 7 days. Unlock Circle asks for nothing beyond the download.

UpkeepUpdate frequency

Unlock Circle ships an update every 65 months, Reaction Speed Reflex Trainer every 3 months. Both last shipped on November 2, 2026.

Scorecard4 real differences · 6 level
Unlock Circle versus Reaction Speed Reflex Trainer: the parameters behind the verdict, then further details
ParameterUnlock CircleReaction Speed Reflex Trainer
PriceFreeFree
Rating—4.6 (1.4K ratings) — better
Positive reviews75.0% of reviews — better53.4% of reviews
Number of ratings—1.4K — better
Update frequencyEvery 65 monthsEvery 3 months — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size30 MB27 MB
Age rating4+4+
DeveloperARDEVTEK YAZILIMVicki Partridge

Customer experience

Unlock Circle

Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Reaction Speed Reflex Trainer

All ratings1,408 ratings
Positive91.4%
Neutral3.6%
Negative5.0%
Written reviews133 reviews
Positive53.4%
Neutral8.3%
Negative38.3%

Bugs and requests

Unlock Circle

Not enough reviews yet to summarise bugs or requests.

Reaction Speed Reflex Trainer

Reported bugs

3 issues
  • Reaction time not updating correctly
  • Crashes when trying to use paid features
  • Ads continue to show even after purchasing ad-free version

Requested features

3 requests
  • Track personal best reaction time
  • Add more game modes and challenges
  • Improve ad placement and reduce interruptions

In-app purchases

None

Unlock Circle

No in-app purchases

4 purchases

Reaction Speed Reflex Trainer

Subscriptions3
  • Weekly Subscription7 Days trial$0.997 Days
  • Monthly Subscription7 Days trial$4.991 Month
  • Yearly Subscription7 Days trial$9.991 Year
One-time1
  • Remove Ads$1.99

Questions

Is Unlock Circle free?
Unlock Circle is free to download, with no in-app purchases.
Is Reaction Speed Reflex Trainer free?
Reaction Speed Reflex Trainer is free to download, with in-app purchases available.
Do Unlock Circle or Reaction Speed Reflex Trainer have ads?
Both Unlock Circle and Reaction Speed Reflex Trainer show ads.
Which is updated more often, Unlock Circle or Reaction Speed Reflex Trainer?
Unlock Circle ships an update every 65 months, and Reaction Speed Reflex Trainer every 3 months. Most recently, Unlock Circle was updated on November 2, 2026 and Reaction Speed Reflex Trainer on November 2, 2026.

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