# Space Towers vs Kulla

The clearest difference is in-app purchases: Kulla at none against Space Towers's 9. Kulla also leads on iOS requirement (12.0 vs 15.0). Space Towers's advantage is update cadence (weekly vs every 2 months) and price ($0.49 vs $1.99). On ads and device support there is nothing between them.

Space Towers costs $0.49 and Kulla $1.99 up front. Space Towers sells 9 one-off in-app purchases. Kulla asks for nothing beyond the download.

Space Towers ships an update weekly, Kulla every 2 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Space Towers | Kulla |
| --- | --- | --- |
| Price | **$0.49** | $1.99 |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/kulla-di-bulla/id892032120/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 71.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | — | Paid |
| Size | 45 MB | 139 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmytro Denys](https://appshunter.io/developer/429279016) | [Stefan Arnhold](https://appshunter.io/developer/432185706) |

## What reviewers say

### Space Towers

[App page](https://appshunter.io/ios/app/space-towers-stack-puzzle/id774739001)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Big Undo Sack | $0.49 | one-time |
| HUGE UNDO SACK | $0.69 | one-time |
| Jumbo Undo Sack | $0.99 | one-time |
| Six Color Towers Puzzles Key | $0.99 | one-time |
| Seven Color Towers Puzzles Key | $0.99 | one-time |
| Eight Color Towers Puzzles Key | $0.99 | one-time |
| Unlimited Undo | $1.99 | one-time |
| Puzzle Generator Infinity Key | $1.99 | one-time |
| Universal Key | $1.99 | one-time |


### Kulla

[App page](https://appshunter.io/ios/app/kulla-di-bulla/id892032120)

This game challenges players to guide a marble through physics-based levels by remembering colors and controlling the ball. It offers a variety of difficulty levels, from easy to challenging, requiring dexterity, patience, and puzzle-solving skills.

**Highlights:** 150 levels with increasing difficulty, Physics-based ball control, Color memory challenges, Level preview and rating system, Integrated iTunes player, Universal app for iPhone and iPad, Gyro/tilt control option

**In-app purchases:** none


## Frequently asked questions

### Is Space Towers free?

Space Towers costs $0.49, and also offers in-app purchases.

### Is Kulla free?

Kulla costs $1.99, with no in-app purchases.

### Do Space Towers or Kulla have ads?

Neither Space Towers nor Kulla shows ads.

### Which is updated more often, Space Towers or Kulla?

Space Towers ships an update weekly, and Kulla every 2 months. Most recently, Space Towers was updated on November 6, 2026 and Kulla on November 1, 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.*