Threes! vs JustSudoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Threes!
A captivating number-sliding puzzle game that offers an endless challenge. Swipe to combine matching numbers, grow your score, and discover adorable characters. This is a complete, buy-once experience with no in-app purchases or ads.
- Number sliding puzzle gameplay
- Endless challenge
- Adorable characters
- Heart-warming soundtrack
- No in-app purchases
- Universal app for iPhone and iPad
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Threes is tiny puzzle that grows on you. This is the buy-once-play-forever version. ³ Apple Game of the Year 2014!! ³ Apple Design Award 2014 Winner ∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞ “You might as well delete Candy Crush Saga now.” ~ Pocket Gamer “It's surprisingly adorable, for a game starring numbers.” ~ Joystiq “It’s the kind of game that embosses the rules on your brain within 30 seconds, but then compels you to spend the next two hours playing.” ~ Pocket Tactics ∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞ Explore our little game’s deep challenge and grow your mind beyond imagination. Optimized for iOS8 and human brains. Universal app for iPhone and iPads. ³ Endless challenge from one simple game mode ³ An endearing cast of characters ³ A heart-warming soundtrack ³ No IAP - Threes is a complete experience the moment you download it Honorably mentioned for Excellence in Design by the Independent Games Festival. ∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞ From the makers of PUZZLEJUICE: ³ Designed by Asher Vollmer ³ Illustrated by Greg Wohlwend (Ridiculous Fishing, Hundreds) ³ Scored by Jimmy Hinson (Black Ops 2, Mass Effect 2) ³ Optimized by Hidden Variable (Bag It!, Tic Tactics) ∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞ Threes grows with you and you’ll grow with Threes.
JustSudoku
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Blank Sudoku is an application focused on Sudoku games. It's a very small app that runs completely offline. No internet connection required. It is a pure application that does not collect any data. Benefits and significance of Sudoku. Enhance math skills. Sudoku involves numbers and calculations. Playing Sudoku can improve players' mathematical abilities, such as numerical cognition, calculation ability, logical reasoning and spatial imagination. Improve concentration and patience. Playing Sudoku requires players to focus on the numbers, as well as patience and perseverance, as solving Sudoku requires time and thinking. Reduce stress. Increase self-confidence.
Screenshots
Verdict
The clearest difference is price: JustSudoku at $2.99 against Threes!'s $5.99. Threes!'s advantage is chart position (#21 vs unranked). On update cadence, 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
Threes! costs $5.99 and JustSudoku $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 18, 2026 and September 27, 2026 respectively.
| Parameter | Threes! | JustSudoku |
|---|---|---|
| Price | $5.99 | $2.99 — better |
| Rating | 4.0 (3K ratings) — better | — |
| Positive reviews | 79.4% of reviews | — |
| Number of ratings | 3K — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #21 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 74 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Sirvo LLC | 志斌 林 |
Bugs and requests
Threes!
Reported bugs
3 issues- Crashes on launch for some users
- Unresponsive controls and swipe detection issues
- Syncing problems with Game Center
Requested features
4 requests- Undo/redo functionality
- Customizable difficulty levels
- Ability to save/load game progress
- Leaderboards and achievements
JustSudoku
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Threes!
No in-app purchases
JustSudoku
No in-app purchases









