Comparison

Yarn! A Jumping Physics Game vs Stack Jump

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

Head to head
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!

About

Stack Jump

Build the tallest tower by stacking blocks as high as you can. Compete for your highscore in an endless mode, conquer 36 challenges, and unlock 20 unique characters.

Highlights
  • Stack blocks to build towers
  • Endless mode for highscores
  • 36 challenges to complete
  • Unlock 20 characters
  • Improve highscore
Features
Read full description

How high can you climb? Jump to stack blocks and build the biggest tower imaginable! Improve your highscore in endless mode, complete the 36 challenges and unlock all 20 characters!

Screenshots

Yarn! A Jumping Physics Game4 screens
Stack Jump4 screens

Verdict

The call

Yarn! A Jumping Physics Game and Stack Jump both sit at 4.4 stars, but that hides the real split: 88% of Yarn! A Jumping Physics Game's written reviews are positive against 48% of Stack Jump's. Stack Jump's advantage is ratings volume (299K vs 8). On price, rating, update cadence and ads 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 and Stack Jump sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Stack Jump holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Stack Jump has 299K ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 88% of Yarn! A Jumping Physics Game's written reviews are positive against 48% of Stack Jump's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Yarn! A Jumping Physics Game ships an update monthly, Stack Jump every 4 weeks. The most recent releases landed on September 18, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 8 level
Yarn! A Jumping Physics Game versus Stack Jump: the parameters behind the verdict, then further details
ParameterYarn! A Jumping Physics GameStack Jump
PriceFreeFree
Rating4.4 (8 ratings)4.6 (299K ratings) — better
Positive reviews88.2% of reviews — better47.6% of reviews
Number of ratings8299K — better
Update frequencyMonthlyEvery 4 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size302 MB155 MB
Age rating4++12
DeveloperApps by ErikVoodoo

Customer experience

Yarn! A Jumping Physics Game

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

Stack Jump

All ratings298,763 ratings
Positive89.1%
Neutral5.5%
Negative5.4%
Written reviews1,711 reviews
Positive47.6%
Neutral14.3%
Negative38.0%

Bugs and requests

Yarn! A Jumping Physics Game

Not enough reviews yet to summarise bugs or requests.

Stack Jump

Reported bugs

4 issues
  • Game crashes on launch
  • Blocks not registering perfect jumps
  • Second chance feature not working as expected
  • Inconsistent performance across devices

Requested features

4 requests
  • Reduce ads or offer paid ad-free version
  • Improve stability and fix bugs
  • Add more challenge modes and levels
  • Introduce leaderboards and social features

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
1 purchases

Stack Jump

One-time1
  • Remove Ads$2.99

Questions

Is Yarn! A Jumping Physics Game free?
Yarn! A Jumping Physics Game is free to download, with in-app purchases available.
Is Stack Jump free?
Stack Jump is free to download, with in-app purchases available.
Which has better reviews, Yarn! A Jumping Physics Game or Stack Jump?
Stack Jump is rated higher. Yarn! A Jumping Physics Game averages 4.4 out of 5 from 8 ratings, while Stack Jump averages 4.6 from 299K ratings.
Do Yarn! A Jumping Physics Game or Stack Jump have ads?
Both Yarn! A Jumping Physics Game and Stack Jump show ads.
Which is updated more often, Yarn! A Jumping Physics Game or Stack Jump?
Yarn! A Jumping Physics Game ships an update monthly, and Stack Jump every 4 weeks. Most recently, Yarn! A Jumping Physics Game was updated on September 18, 2026 and Stack Jump on September 27, 2026.

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