Comparison

Mastermind Challenger vs Killdoku

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

Head to head
About

Mastermind Challenger

Features
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Break the hidden code. The machine hides a line of coloured pegs. You guess. It answers with pins: a green pin for a peg of the right colour in the right place, an orange pin for the right colour in the wrong place. Which pin belongs to which peg, it will not say. That part is yours. A RUN, NOT A PUZZLE Crack the code and the next one is a level harder. Fail to crack one and the run is over, and how far you got is your score. That is what makes a single number worth a leaderboard: not how well you did on one puzzle, but how far you got before one beat you. The code grows from four pegs to eight and the palette from six colours to eight — 360 possible codes on the first level, 16,777,216 on the last. THE BOARD • Tap a colour to drop it on the cursor, or drag it into a particular hole • Drag a ball along the line to move it, or onto another to swap the two • Reuse a colour from a line you have already played, without hunting it in the picker • A full line answers itself • Optional: see how many codes still fit every answer on the board. Watching 1,296 fall to 4 is the whole game in one number TWO HINTS PER CODE Reveal gives away one peg and locks it. Deduce fills the line with a code that fits every answer so far — not the secret, just one of the codes still standing, so it can still be wrong. Each hint halves what the code pays, which is what makes spending one a real choice. MADE TO BE PLAYED BY ANYONE • Kids mode: shorter codes, fewer colours, two extra lines • Symbols on pegs, so the code can be read without relying on colour • English and French, switched inside the app • Light and dark, both drawn properly ON EVERY SCREEN iPhone, iPad and Mac. Your best run follows you through iCloud and goes to a Game Center leaderboard. FREE TO TRY The first three codes are free, which is enough to crack one, reach the next level and see the whole game working. One purchase opens every level above them — up to eight pegs from eight colours — on all your devices. That is the only thing for sale. No ads, no consumable hints, no paid second chances: a run ends when a code beats you, which is the only reason the leaderboard means anything. No ads. No account. No data collected.

About

Killdoku

Features
Read full description

Every room tells a story. Killdoku is a detective logic game where every clue matters. Place each person in the correct position, reconstruct the scene, and use pure deduction to determine who committed the murder. Investigate 480 carefully designed and validated cases across 14 distinctive dossiers. Four difficulty levels—from Easy to Extreme—let you choose between a quick deduction and a demanding 12×12 investigation. Features: - 480 cases: 120 Easy, 120 Medium, 120 Hard, and 120 Extreme - 14 distinctive detective dossiers - Progressive hints based on your current board - Theory Mode for safely testing a line of reasoning - Daily Case with a local archive - Local progress, statistics, and multiple in-progress cases - Dutch and English - High-contrast, large-text, Reduce Motion, coordinate, and high-visibility mark options - No ads, no account, and no in-app purchases Can you follow the clues, reconstruct the scene, and identify the murderer?

Screenshots

Mastermind Challenger4 screens
Killdoku4 screens

Verdict

The call

The clearest difference is in-app purchases: Killdoku at none against Mastermind Challenger's 1. Killdoku also leads on iOS requirement (13.0 vs 17.0). On price, ads 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. Mastermind Challenger sells 1 one-off in-app purchase. Killdoku asks for nothing beyond the download.

Scorecard2 real differences · 4 level
Mastermind Challenger versus Killdoku: the parameters behind the verdict, then further details
ParameterMastermind ChallengerKilldoku
PriceFreeFree
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size2 MB188 MB
Age rating4+12+
DeveloperPhilippe GUILLAUDTed Maertzdorf

In-app purchases

1 purchases

Mastermind Challenger

One-time1
  • All Levels$1.99
None

Killdoku

No in-app purchases

Questions

Is Mastermind Challenger free?
Mastermind Challenger is free to download, with in-app purchases available.
Is Killdoku free?
Killdoku is free to download, with no in-app purchases.
Do Mastermind Challenger or Killdoku have ads?
Neither Mastermind Challenger nor Killdoku shows ads.

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