# 99 Problems vs Stack Jump

The clearest difference is ads: 99 Problems at none against Stack Jump's shown. 99 Problems also leads on review sentiment (74% vs 48%) and iOS requirement (6.1 vs 13.0). Stack Jump's advantage is ratings volume (299K vs 38) and rating (4.6 vs 4.3). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 99 Problems sells 1 one-off in-app purchase and Stack Jump sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Stack Jump holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Stack Jump has 299K ratings behind it against 38, so its average is the more settled of the two. Written reviews complicate that: 74% of 99 Problems'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.

99 Problems ships an update every 3 months, Stack Jump every 4 weeks. The most recent releases landed on September 7, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | 99 Problems | Stack Jump |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (38 ratings)](https://appshunter.io/ios/app/99-problems/id911710597/reviews) | **[4.6 (299K ratings)](https://appshunter.io/ios/app/stack-jump/id1263426717/reviews)** |
| Number of ratings | 38 | **299K** |
| Positive reviews | **74.2% of reviews** | 47.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 155 MB |
| Requires iOS | **6.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +12 |
| Developer | [Mamau ApS](https://appshunter.io/developer/1079859475) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### 99 Problems

[App page](https://appshunter.io/ios/app/99-problems/id911710597)

Navigate a minimalist world through 99 challenging levels. Evade obstacles and wall-jump your way to victory in this addictive hardcore game. Experience a seamless stream of challenges designed for maximum fun.

**Highlights:** 99 challenging levels, Minimalist design, Obstacle evasion, Wall-jumping mechanics, Hardcore fun

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Stack Jump

[App page](https://appshunter.io/ios/app/stack-jump/id1263426717)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 🤩 Addictive and fun gameplay
- 😍 Cute and charming characters
- 🎨 Variety of themes and backgrounds
- 🎉 Rewarding to unlock new content

**What reviewers complain about**

- 🤬 Excessive and intrusive ads
- 🐛 Frequent crashes and glitches
- 🤯 Laggy performance and freezing issues
- 😕 Inconsistent scoring/mechanics

**Reported bugs**

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

**Requested features**

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


## Frequently asked questions

### Is 99 Problems free?

99 Problems 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, 99 Problems or Stack Jump?

Stack Jump is rated higher. 99 Problems averages 4.3 out of 5 from 38 ratings, while Stack Jump averages 4.6 from 299K ratings.

### Do 99 Problems or Stack Jump have ads?

Stack Jump shows ads; 99 Problems does not.

### Which is updated more often, 99 Problems or Stack Jump?

99 Problems ships an update every 3 months, and Stack Jump every 4 weeks. Most recently, 99 Problems was updated on September 7, 2026 and Stack Jump on September 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*