Threes! vs Nebula Merge
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.
Nebula Merge
Drop celestial bodies into a cosmic well, merging matching tiers to ascend. Fuse various cosmic objects to reach an Eternal Nebula, using comets and void shards to your advantage. Earn in-game currency for permanent upgrades and compete in daily challenges.
- Celestial body merging
- Permanent upgrades
- Daily, weekly, monthly challenges
- Prestige system for bonuses
- Leaderboard competition
- Offline play
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Drop celestial bodies into a cosmic well. Matching tiers merge, the pile rises, and one slip past the danger line ends the run. Fuse Stardust into Asteroids, Moons, Planets, Stars, and beyond — all the way to an Eternal Nebula. Comets promote whatever they touch. Void Shards erase a body for score. Earn Stardust, buy permanent upgrades, collect every body, and chase daily, weekly, and monthly challenges. Prestige to keep a forever Stardust bonus. Climb the Game Center leaderboard — beat the record and a Record Breaker jackpot drops. Cosmic Pass removes ads and always doubles end-of-run Stardust. Stardust packs are optional. Portrait. Offline. No account required.
Screenshots
Verdict
The clearest difference is price: Nebula Merge at Free against Threes!'s $5.99. Nebula Merge also leads on rating (5.0 vs 4.0) and update cadence (daily vs every 3 weeks). Threes!'s advantage is in-app purchases (none vs 6) and ads (none vs shown).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Nebula Merge is free to download; Threes! costs $5.99 up front. Nebula Merge sells 6 one-off in-app purchases. Threes! asks for nothing beyond the download.
Nebula Merge holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Threes! has 3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of Threes!'s written reviews are positive against 100% of Nebula Merge's.
Threes! ships an update every 3 weeks, Nebula Merge daily. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.
| Parameter | Threes! | Nebula Merge |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.0 (3K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 79.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 3K — better | 2 |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #28 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 74 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Sirvo LLC | TYLER JOSEPH RUBINO |
Customer experience
Threes!
Nebula Merge
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
Nebula Merge
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Threes!
No in-app purchases
Nebula Merge
- Pocket Dust$0.99
- Cosmic Pass$4.99
- Comet Cluster$4.99
Show 3 moreShow fewer
- Star Cache$9.99
- Nebula Vault$19.99
- Cosmic Treasury$39.99









