Comparison

Brain Test vs Twindoku

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

Head to head
About

Brain Test

Features
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Can you crack the secret code? Color Code: Mastermind Game is the ultimate brain teaser that tests your power of logic, deduction, and pattern recognition. Guess the hidden color sequence, decode the clues, and crack the code before your attempts run out. Simple to learn. Impossible to put down. HOW TO PLAY Choose your colors and submit your guess Green clue = right color, right position Orange clue = right color, wrong position Use logic and deduction to crack the code Beat it in fewer attempts to master your IQ WHY YOU'LL LOVE IT - Pure brain training — no luck, only logic - Every game is a new code to crack - Quick sessions or deep mind game marathons - Beautiful glowing color orbs and neon design - Multiple difficulty levels for all skill levels - Play offline anytime, anywhere PERFECT FOR Fans of Mastermind, code breaker games, IQ test challenges, logic puzzles, brain test games, and sequence puzzles. If you love training your mind, this is your game. TRAIN YOUR BRAIN DAILY Each round sharpens your deduction skills, pattern recognition, and logical thinking. Play one game or ten — every session makes you sharper. Can you solve it in fewer attempts each time? Download now and crack the code. Terms of Use: https://plausible-motorcycle-284.notion.site/Color-Code-Privacy-Policy-375e5b6350e880bdaa23fef73811fc6c?pvs=73

About

Twindoku

A pure logic puzzle game where you fill a grid with two symbols based on a set of rules. Each level has a single, provable solution, and hints explain the deduction process. Mistakes cost hearts but can be undone.

Highlights
  • Pure logic puzzle gameplay
  • Provable solutions, no guessing
  • Progressive rule stacking
  • Interactive hints with explanations
  • Mistake system with hearts
  • Varied grid shapes
Features
Read full description

Two symbols. One answer. No guessing, ever. Twindoku is a pure logic puzzle. Fill each square of the grid with a sun or a moon until the board satisfies every rule the level lists. Every rule in play is printed above the board, so nothing is hidden and nothing is left to luck. ONE ANSWER, ALWAYS REACHABLE Each level has exactly one valid solution, and at any point in a solve there is at least one square you can prove from the rules in front of you. You never guess, and you never have to undo a wrong branch. The cells that come pre-filled are your starting foothold. THE BASICS TAKE TWO TAPS Tap an empty square and a picker opens right where you tapped; choose a sun or a moon, tap again to switch. - Balance: each row and column holds the same number of suns and moons -- 3 and 3 on a 6x6 grid, 4 and 4 on 8x8. - No three in a row: never three of the same symbol side by side, across or down. Diagonals do not count. THEN THE RULES START STACKING From level 3 on, every puzzle adds one or two more rules over the basics: - Equal and cross markers: two neighboring cells that must match, or must be opposite. - Color regions: each colored area needs its suns and moons balanced too. - Blocked cells: cannot be filled, do not count for their row or column, and break up a run. - Edge numbers: which cell holds the first sun of that row or column. - Junction numbers: how many suns sit in the 2x2 block around the number. A 0 or a 4 decides four cells at once. - Boards that are not square: diamonds, fat crosses, hearts, bow ties, octagons, window frames. Outside the outline is background -- untappable, uncounted. HINTS THAT TEACH The hint tool finds a square that can be proven right now, highlights it, and explains the deduction -- which rule, and what on the board makes it certain. You read the reasoning, then press Apply. You keep the technique. MISTAKES ARE NOT THE END Three hearts per level. A wrong symbol costs one heart and names the rule it broke. Out of hearts, revive to get them back with your last move undone, or restart the level clean. There is no dead end, so you can stay with a grid until it cracks. GOOD FIT IF YOU LIKE Sudoku, Binairo, Takuzu, Binoxxo, binary puzzles, Nonogram, Kakuro, or any brain teaser you finish by reasoning instead of luck. Fill every square, satisfy every rule, and the board solves itself.

Screenshots

Brain Test4 screens
Twindoku4 screens

Verdict

The call

The clearest difference is in-app purchases: Twindoku at none against Brain Test's 1. Twindoku also leads on iOS requirement (15.0 vs 18.6). Brain Test's advantage is ads (none vs shown). On price, update cadence 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. Brain Test sells 1 one-off in-app purchase. Twindoku asks for nothing beyond the download.

UpkeepUpdate frequency

Brain Test ships an update every 4 days, Twindoku every 5 days. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Brain Test versus Twindoku: the parameters behind the verdict, then further details
ParameterBrain TestTwindoku
PriceFreeFree
Rating—4.3 (6 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 4 days — betterEvery 5 days
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.0 — better
Further details — not scored
Size14 MB165 MB
Age rating4+4+
DeveloperKamlesh ShingarakhiyaOakever Games

In-app purchases

1 purchases

Brain Test

One-time1
  • Remove Ads & Unlimited Hints$4.99
None

Twindoku

No in-app purchases

Questions

Is Brain Test free?
Brain Test is free to download, with in-app purchases available.
Is Twindoku free?
Twindoku is free to download, with no in-app purchases.
Do Brain Test or Twindoku have ads?
Twindoku shows ads; Brain Test does not.
Which is updated more often, Brain Test or Twindoku?
Brain Test ships an update every 4 days, and Twindoku every 5 days. Most recently, Brain Test was updated on October 12, 2026 and Twindoku on October 11, 2026.

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