Comparison

TapReaction vs Pi Digits

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

Head to head
About

TapReaction

Train and test your reflexes by tapping colors or numbers as quickly as possible. Choose board size and game duration to challenge your reaction speed in various modes.

Highlights
  • Reaction time testing
  • Color and Number modes
  • Customizable board size
  • Adjustable game time
  • High score lists
  • GameCenter support
Features
Read full description

The human reaction time to a sudden unexpected event would be about one second - the so-called second of shock. But it is possible to reduce this time by training. Test your reaction time and train yourself with 'TabReaction'. Tap away the colors or numbers with one or with several fingers as fast you can. How much fields can you click in 30 seconds? You can choose the size of the board and as well as the playing time. The Game: Three different ways to test your reaction skills (Color-, Number- und Timemode). Game Options: - select the number of fields or strokes - Sound On/Off - Highscorelist for alle 3 play-modes - GameCenter support

About

Pi Digits

Test your ability to memorize and recall digits of Pi. Engage in fast-paced challenges to extend your streak and improve your number recall. Ideal for students, puzzle enthusiasts, or anyone seeking a quick mental workout.

Highlights
  • Memorize digits of Pi
  • Classic typing mode
  • Timed Blitz mode
  • Track best streaks
  • Quick brain workouts
  • Suitable for all levels
Features
Read full description

How many digits of π can you really remember? Pi Digits turns memorizing pi into a fast, addictive challenge - perfect for Pi Day, school contests, or anyone who loves number puzzles. Start at 3.14159… and see how far your memory can go. THREE WAYS TO PLAY • Classic Mode: Type the next digit and build your streak one number at a time. • Blitz Mode: You've got 10 seconds—go as far as you can before the clock runs out. • Practice Mode: Optionally reveal the next digit as you go, with no fails - just relaxed, low-pressure practice. WHY YOU'LL LOVE PI DIGITS • Train your recall: A simple loop that makes practice feel like a game • Quick sessions: Perfect for a short brain workout anytime • Track your best run: Beat your personal record and level up your pi knowledge • Statistics: See your progress and stats over time • Fun for all levels: From beginners learning the first digits to serious memorizers MADE FOR PI FANS (AND FUTURE PI FANS) Whether you're preparing for a classroom competition, challenging friends, or just want a satisfying memory test, Pi Digits is a focused way to practice and improve. Ready to become a Pi master? Download Pi Digits and start your streak today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscription required to access all features.

Screenshots

TapReaction4 screens
Pi Digits4 screens

Verdict

The call

The clearest difference is review sentiment: Pi Digits at 100% against TapReaction's 0%. Pi Digits also leads on rating (5.0 vs 4.0) and update cadence (monthly vs every 26 months). TapReaction's advantage is iOS requirement (12.4 vs 17.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Pi Digits holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of TapReaction's written reviews are positive against 100% of Pi Digits's.

UpkeepUpdate frequency

TapReaction ships an update every 26 months, Pi Digits monthly. Both last shipped on October 4, 2026.

Scorecard4 real differences · 6 level
TapReaction versus Pi Digits: the parameters behind the verdict, then further details
ParameterTapReactionPi Digits
PriceFreeFree
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 26 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS12.4 — better17.0
Further details — not scored
Size5 MB11 MB
Age rating4+4+
DeveloperLars BergeltSlavka Polanova

Customer experience

TapReaction

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

Pi Digits

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TapReaction

No in-app purchases

None

Pi Digits

No in-app purchases

Questions

Is TapReaction free?
TapReaction is free to download, with no in-app purchases.
Is Pi Digits free?
Pi Digits is free to download, with no in-app purchases.
Which has better reviews, TapReaction or Pi Digits?
Pi Digits is rated higher. TapReaction averages 4.0 out of 5 from 1 ratings, while Pi Digits averages 5.0 from 1 ratings.
Do TapReaction or Pi Digits have ads?
Neither TapReaction nor Pi Digits shows ads.
Which is updated more often, TapReaction or Pi Digits?
TapReaction ships an update every 26 months, and Pi Digits monthly. Most recently, TapReaction was updated on October 4, 2026 and Pi Digits on October 4, 2026.

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