Comparison

Cell Infex vs Yarn! A Jumping Physics Game

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Strategic cell injection gameplay
  • Destroying infected cells
  • Utilizing special in-body cells
  • Global leaderboard and ranking
  • No in-game advertisements
Features
Read full description

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.

About

Yarn! A Jumping Physics Game

Guide a brave ball of yarn through a city overrun by zombie cats. Jump over obstacles, collect stars, and defeat the menacing feline foes in this atmospheric 2D platformer.

Highlights
  • Physics-based jumping
  • Obstacle avoidance
  • Star collection
  • Zombie cat battles
  • 2D platformer gameplay
  • Atmospheric world exploration
Features
Read full description

After a can of toxic waste is dumped into a river, fish used to make cat food turns normally cute and cuddly cats into menacing decaying creatures! Cat Zombies! Now they are terrorizing the city and it’s up to our hero - Doodle, a brave little ball of yarn - to save the day. Each level is being terrorized by a Cat Zombie that you have to knock out, along with a number of obstacles that you have to help Doodle avoid. Jump over spikes and saws, and pivot off the walls in order to scale up them. Collect all the stars and destroy the Cat Zombie as fast as you can. Best of luck, and remember keep on the look out for Cat Zombies. Yarn is a beautiful indie 2d atmospheric platformer with a cute little character super hero - Doodle! Jump through this diverse, gorgeous galaxy world and explore Meow Town or the Scratchy Dungeons but watch out for the monster zombie cats! This corky jumper is a furry of fun!

Screenshots

Cell Infex3 screens
Yarn! A Jumping Physics Game4 screens

Verdict

The call

The clearest difference is in-app purchases: Cell Infex at none against Yarn! A Jumping Physics Game's 4. Cell Infex also leads on ads (none vs shown) and review sentiment (100% vs 88%). Yarn! A Jumping Physics Game's advantage is update cadence (monthly vs every 38 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Yarn! A Jumping Physics Game sells 4 one-off in-app purchases. Cell Infex asks for nothing beyond the download.

UpkeepUpdate frequency

Cell Infex ships an update every 38 months, Yarn! A Jumping Physics Game monthly. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Cell Infex versus Yarn! A Jumping Physics Game: the parameters behind the verdict, then further details
ParameterCell InfexYarn! A Jumping Physics Game
PriceFreeFree
Rating—4.4 (8 ratings) — better
Positive reviews100.0% of reviews — better88.2% of reviews
Number of ratings—8 — better
Update frequencyEvery 38 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size25 MB302 MB
Age rating4+4+
DeveloperNeil KingApps by Erik

Customer experience

Cell Infex

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Yarn! A Jumping Physics Game

All ratings8 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews34 reviews
Positive88.2%
Neutral2.9%
Negative8.8%

In-app purchases

None

Cell Infex

No in-app purchases

4 purchases

Yarn! A Jumping Physics Game

One-time4
  • Dark Knit$0.99
  • Sargent Tangle$0.99
  • Sir Doodle$0.99
Show 1 more
  • Spoooky Mummy Doodle$0.99

Questions

Is Cell Infex free?
Cell Infex is free to download, with no in-app purchases.
Is Yarn! A Jumping Physics Game free?
Yarn! A Jumping Physics Game is free to download, with in-app purchases available.
Do Cell Infex or Yarn! A Jumping Physics Game have ads?
Yarn! A Jumping Physics Game shows ads; Cell Infex does not.
Which is updated more often, Cell Infex or Yarn! A Jumping Physics Game?
Cell Infex ships an update every 38 months, and Yarn! A Jumping Physics Game monthly. Most recently, Cell Infex was updated on October 30, 2026 and Yarn! A Jumping Physics Game on October 29, 2026.

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