Grav Box vs Sembl
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Grav Box
Control gravity with a tap and hold to manipulate objects. Customize their appearance, explore dynamic physics, and engage in arcade challenges with leaderboards and achievements.
- Tap and hold to control gravity
- Customize grav colors and emojis
- Dynamic backgrounds and physics effects
- Arcade mode with achievements
- Global leaderboards
- In-game events like black holes
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Grav Box places gravity at your fingertips. Tap and hold on the screen to control the gravitational field around your gravs and manipulate them in limitless ways. Customize your entire experience by setting gravs to any color or emoji, explore dynamic backgrounds and physics effects, and even modify the effects of gravity itself. With custom preferences set, head to the arcade to unlock achievements and compete against global leaderboards. Be prepared for black holes, gravitational shifts, and many other in-game events that will impact your gameplay.
Sembl
Engage in a unique puzzle experience where you create designs through various artistic actions. Master over 190 levels at your own pace or test your speed in timed challenges. Enjoy minimalist graphics and serene music.
- Unique design puzzles
- Paint, cut, punch, stencil, spin
- 32 levels
- Over 190 puzzles
- Journey mode
- Challenge mode
- Minimalist graphics
- Serene sound
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"With pleasing music, a lovely design, a unique concept, and the right amount of challenge, Sembl is hard to put down." - AppAdvice Every design is a puzzle and every game is unique. Paint, cut, punch, stencil and spin your way to the perfect design. Master 32 levels and over 190 puzzles at your own pace in the Journey, or race the clock in Challenge mode. ◉ Deceptively simple gameplay ◉ Two ways to play – Journey or Challenge ◉ 32 levels and over 190 unique puzzles ◉ Minimalist graphics and beautiful, serene sound ◉ Stats and leaderboard
Screenshots
Verdict
The clearest difference is rating: Grav Box at 4.8 against Sembl's 4.2. Grav Box also leads on review sentiment (96% vs 74%). Sembl's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price, ratings volume, in-app purchases and monetization model 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. Grav Box sells 10 one-off in-app purchases and Sembl sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Grav Box holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 26 and 21 respectively. Written reviews point the same way: 96% of Grav Box's written reviews are positive against 74% of Sembl's.
Grav Box ships an update every 5 months, Sembl every 3 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.
| Parameter | Grav Box | Sembl |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (26 ratings) — better | 4.2 (21 ratings) |
| Positive reviews | 96.0% of reviews — better | 73.9% of reviews |
| Number of ratings | 26 — better | 21 |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Gianluca Capraro | Artgig Studio |
Customer experience
Grav Box
Sembl
In-app purchases
Grav Box
- Gold Blocks (100) Pack$0.99
- Light Portal$0.99
- Dark Portal$0.99
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- Grav Box$0.99
- Midnight$0.99
- Daybreak$0.99
- Beach$0.99
- Jungle$0.99
- Mist$0.99
- Gold Blocks (1000) Pack$4.99
Sembl
- Remove all ads$1.99
