Comparison

Remember 3.1415 vs Calcudoku (Puzzle)

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

Head to head
About

Remember 3.1415

Challenge your math and logic skills with this game that tests your ability to recall digits of Pi. Compete against the clock in various timed modes or an endless challenge. AI provides helpful tips to improve your input speed and accuracy.

Highlights
  • Over 1 million digits of Pi
  • Multiple timed game modes
  • Endless challenge mode
  • AI-powered input tips
  • Game over on time or error
Features
Read full description

Popular cross-platform game: Remember 3.1415 more than 1000000+ length Pi for you to challenge your math and logic brain. Features *1000000+ length Pi. *Big Level: Classic-60s, Classic-180s, Classic-300s, Endless *You can input how many pi length as quickly as you can. *Artificial Intelligence tips how to input number *Game over: Time is up or enter wrong number Special thanks: WuBingQiong, ZhuYangJian Feedback: 283784210@qq.com

About

Calcudoku (Puzzle)

Features
Read full description

Train your brain with CalcuDoku, a logic puzzle that combines Sudoku-style thinking with arithmetic challenges. Every puzzle requires careful deduction — no guessing, just pure logic. With 4,204 offline levels, you’ll always have a new challenge waiting. How It Works Fill the grid with numbers so that: • Numbers do not repeat in any row or column • Each bold-outlined cage matches its target number using the given operator Simple rules — deep strategy. Game Features • 4,204 offline levels — play anywhere, anytime • 6 difficulty levels — from 4×4 up to 9×9 grids • Optional game timer • Hints when you get stuck • Undo button • Automatic save of game state and progress • Day and night modes • Supports portrait and landscape orientations Whether you want a quick 4×4 warm-up or a challenging 9×9 brain workout, CalcuDoku adapts to your skill level. Sharpen your logic. Improve concentration. Enjoy thousands of satisfying puzzles. Download now and start solving.

Screenshots

Remember 3.14154 screens
Calcudoku (Puzzle)4 screens

Verdict

The call

The clearest difference is in-app purchases: Calcudoku (Puzzle) at none against Remember 3.1415's 1. Calcudoku (Puzzle) also leads on update cadence (every 4 weeks vs every 64 months). Remember 3.1415's advantage is ads (none vs shown) and ratings volume (4 vs 1). On price, rating, 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. Remember 3.1415 sells 1 one-off in-app purchase. Calcudoku (Puzzle) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for Remember 3.1415 against 4.0 for Calcudoku (Puzzle). Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Remember 3.1415 ships an update every 64 months, Calcudoku (Puzzle) every 4 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Remember 3.1415 versus Calcudoku (Puzzle): the parameters behind the verdict, then further details
ParameterRemember 3.1415Calcudoku (Puzzle)
PriceFreeFree
Rating4.0 (4 ratings)4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 64 monthsEvery 4 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size17 MB10 MB
Age rating4+12+
Developer杨军 朱Aliaksandr Uvarau

In-app purchases

1 purchases

Remember 3.1415

One-time1
  • Buy Pro Version$0.99
None

Calcudoku (Puzzle)

No in-app purchases

Questions

Is Remember 3.1415 free?
Remember 3.1415 is free to download, with in-app purchases available.
Is Calcudoku (Puzzle) free?
Calcudoku (Puzzle) is free to download, with no in-app purchases.
Which has better reviews, Remember 3.1415 or Calcudoku (Puzzle)?
Remember 3.1415 and Calcudoku (Puzzle) are both rated 4.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Remember 3.1415 or Calcudoku (Puzzle) have ads?
Calcudoku (Puzzle) shows ads; Remember 3.1415 does not.
Which is updated more often, Remember 3.1415 or Calcudoku (Puzzle)?
Remember 3.1415 ships an update every 64 months, and Calcudoku (Puzzle) every 4 weeks. Most recently, Remember 3.1415 was updated on October 24, 2026 and Calcudoku (Puzzle) on October 25, 2026.

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