Comparison

Brain Challenge vs 15 Puzzle

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

Head to head
About

Brain Challenge

Test your visual and auditory memory by re-entering increasingly longer codes. This addictive game challenges your recall with a unique nine-digit keyboard.

Highlights
  • Visual and auditory memory challenge
  • Increasingly longer codes
  • Score based on speed
  • Unique nine-digit keyboard
  • Addictive gameplay
Features
Read full description

Warning: this game is highly addictive and may harm your social life! Challenge both your visual and auditive memory and try to remember and reenter the code entered each round using a nine digits keyboard without numbers :) The number of digits in the code increases each round, and you get more score as you guess the code more quickly. Can you take the challenge? كيف تلعب: حاول اعادة ادخال الكود الذي يظهر كل مرة. بعد كل محاولة يصبح الكود اطول كلما كنت اسرع كلما كانت نتيجتك اكبر

About

15 Puzzle

Features
Read full description

15 Puzzle is an addictive sliding puzzle game where players rearrange numbered tiles to achieve a specific pattern. With smooth gameplay, intuitive controls, and full gesture support, players can enjoy a challenging yet relaxing experience. Developed in 2024 by Emanuel Boboiu and Andrei Mischie, and updated in October 2025 by Emanuel Boboiu and Nelu Cîmpean, the game is optimized for seamless performance on mobile devices and supports screen readers, ensuring accessibility for all players. Gameplay 15 Puzzle features grids with 9, 16, or 25 cells, offering varying levels of difficulty to suit all skill levels. Your objective is to arrange the numbered tiles in ascending order within the grid. For example, in a 4×4 grid, you'll need to arrange the numbers from 1 to 15. The grid contains one empty cell, allowing you to slide adjacent tiles into the empty space. To move a tile, simply tap, click, or use gestures. If the tile is adjacent to the empty cell, it will slide into the empty space. Continue sliding the tiles strategically until you've arranged them in the correct order, ensuring the empty cell ends up in the bottom-right corner. This game was created to demonstrate how a single codebase can power a game across major platforms while maintaining excellent accessibility.

Screenshots

Brain Challenge2 screens
15 Puzzle4 screens

Verdict

The call

The clearest difference is update cadence: Brain Challenge at every 2 months against 15 Puzzle's every 14 months. Brain Challenge also leads on iOS requirement (6.0 vs 15.0). On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Brain Challenge ships an update every 2 months, 15 Puzzle every 14 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
Brain Challenge versus 15 Puzzle: the parameters behind the verdict, then further details
ParameterBrain Challenge15 Puzzle
PriceFreeFree
Rating4.4 (25 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings25 — better—
Update frequencyEvery 2 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS6.0 — better15.0
Further details — not scored
Size6 MB8 MB
Age rating4+4+
DeveloperARAPPDEVEmanuel Boboiu

In-app purchases

None

Brain Challenge

No in-app purchases

None

15 Puzzle

No in-app purchases

Questions

Is Brain Challenge free?
Brain Challenge is free to download, with no in-app purchases.
Is 15 Puzzle free?
15 Puzzle is free to download, with no in-app purchases.
Do Brain Challenge or 15 Puzzle have ads?
Neither Brain Challenge nor 15 Puzzle shows ads.
Which is updated more often, Brain Challenge or 15 Puzzle?
Brain Challenge ships an update every 2 months, and 15 Puzzle every 14 months. Most recently, Brain Challenge was updated on October 24, 2026 and 15 Puzzle on October 5, 2026.

Other comparisons