Cell Infex vs Sand & Sky
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Cell Infex
Inject a genetically modified cell to destroy an alien virus infecting the population. Strategically infect and eliminate growing cell clusters in various body locations. Discover special cells to aid your mission and compete for a world ranking.
- Strategic cell injection gameplay
- Destroying infected cells
- Utilizing special in-body cells
- Global leaderboard and ranking
- No in-game advertisements
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STORY: An alien virus has contaminated most of the population. You have to inject a single genetically modified/infected cell into various locations in a patients body to cure them. Any cell which touches your engineered cell will self-destruct. Any that touch those will in turn self-destruct, and so on. You must infect and destroy a growing number of cells in each location. There are special cells already in the body which, if you are lucky enough to find, you can use to help you - such as ones which slow the cells decay or make them grow to a larger size. This is the full game and is available for FREE but if you enjoy it, please tap the link on the title screen and donate to Cancer Research UK. Any amount, no matter how small, will help them research treatments and cures for cancer. My JustGiving page is at: https://www.justgiving.com/worldbydesign The game features a leaderboard across all formats which will give you your world ranking. NOTE: There are no adverts in this game. Your device ID is only used for the leaderboard to keep track of your high score.
Sand & Sky
Experiment with physics and materials in a creative sandbox. Drop, mix, and ignite various elements to discover surprising interactions and build unique creations. Enjoy a zen-like experience with realistic simulations and a variety of tools.
- Realistic fluid simulation
- Gravity manipulation
- Wind tool
- Adjustable brush and speed
- Undo and clear functions
- Material interaction guide
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Sand & Sky is an endlessly satisfying particle physics sandbox — drop materials, watch them interact, and discover what happens when science meets creativity. Pour water and watch it fill every corner. Drop lava onto ice and forge obsidian. Ignite gunpowder and set off chain explosions. Build walls, draw mazes, and experiment unique materials that each behave according to their own rules. REACTIONS & COMBINATIONS Every material interacts with others in surprising ways. Water meets lava and creates stone. Lightning strikes sand and fuses it into glass. Acid dissolves almost everything. Discover all the reactions in the built-in Reactions guide. FEATURES · Realistic fluid simulation — liquids fill containers and accumulate naturally · Flip gravity in any direction — up, down, left, or right · Wind tool to push particles across the screen · Adjustable brush size and simulation speed · Undo button and sandbox clear · Unique sounds for every material Whether you're building elaborate contraptions, running experiments, or simply watching particles fall — Sand & Sky is the perfect zen sandbox to lose yourself in.
Screenshots
Verdict
The clearest difference is ads: Cell Infex at none against Sand & Sky's shown. Cell Infex also leads on monetization model (free vs ad-supported) and iOS requirement (9.0 vs 16.4). Sand & Sky's advantage is update cadence (every 5 weeks vs every 38 months). On price, review sentiment, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cell Infex ships an update every 38 months, Sand & Sky every 5 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | Cell Infex | Sand & Sky |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 38 months | Every 5 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 25 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Neil King | Nicholas Bianchino |
Customer experience
Cell Infex
Sand & Sky
In-app purchases
Cell Infex
No in-app purchases
Sand & Sky
No in-app purchases









