Colour Snap! vs SudokuOS
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Colour Snap!
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Think fast, tap faster! Colour Snap is a vibrant and addictive colour-matching game that tests your reflexes, memory, and focus. Can you match the right colour before time runs out?
SudokuOS
Solve Sudoku puzzles with five difficulty levels on your iPhone or iPad. Utilize notes, candidates, hints, and an erase function. Track your progress with ratings and charts, and enjoy automatic saving for uninterrupted gameplay.
- Five difficulty levels
- Notes and candidate filling
- Hint and erase functions
- Progress tracking and rating
- Automatic game saving
- Customizable accent colors and haptics
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Play Sudoku on your iPhone or iPad. Choose from five difficulty levels and solve each puzzle at your own pace. Use notes, fill in candidates for individual cells, get help from a hint or erase an entry. After completing a puzzle, view your rating and progress chart. Settings shows your solved puzzle count and best time. Your current game is saved automatically on your device, so you can close the app and continue later. Choose from six accent colours and adjust the haptic feedback setting. No internet connection or account is needed to play. The app contains no ads, in-app purchases or subscriptions.
Screenshots
Verdict
The clearest difference is in-app purchases: SudokuOS at none against Colour Snap!'s 1. SudokuOS also leads on ads (none vs shown). On price, update cadence, 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
Both are free to download. Colour Snap! sells 1 one-off in-app purchase. SudokuOS asks for nothing beyond the download.
Colour Snap! ships an update every 5 days, SudokuOS every 4 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | Colour Snap! | SudokuOS |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 71.4% of reviews |
| Update frequency | Every 5 days | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 7 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Carolus Walraven | Seidelapps |
In-app purchases
Colour Snap!
- Disable Ads$0.99
SudokuOS
No in-app purchases
Questions
Is Colour Snap! free?
Is SudokuOS free?
Do Colour Snap! or SudokuOS have ads?
Which is updated more often, Colour Snap! or SudokuOS?
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