# Stack 101 Tower vs CosmoBot

The clearest difference is in-app purchases: Stack 101 Tower at none against CosmoBot's 4. Stack 101 Tower also leads on iOS requirement (12.0 vs 15.1). CosmoBot's advantage is update cadence (every 2 days vs every 5 days). On price, ads and device support there is nothing between them.

Both are free to download. CosmoBot sells 4 one-off in-app purchases. Stack 101 Tower asks for nothing beyond the download.

Stack 101 Tower ships an update every 5 days, CosmoBot every 2 days. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Stack 101 Tower | CosmoBot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 54 MB | 51 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZHENG YU-XIANG](https://appshunter.io/developer/1863257025) | [NYOTA CREATIVE BILISIM YAZILIM FAALIYETLERI PAZARLAMA VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/6776771573) |

## What reviewers say

### Stack 101 Tower

[App page](https://appshunter.io/ios/app/stack-101-tower/id6759484448)

**Features:** macOS Compatibility

**In-app purchases:** none


### CosmoBot

[App page](https://appshunter.io/ios/app/cosmobot-word-puzzle-game/id6777054552)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Emeralds | $0.99 | one-time |
| Bag of Emeralds | $4.99 | one-time |
| Chest of Emeralds | $9.99 | one-time |
| Vault of Emeralds | $19.99 | one-time |


## Frequently asked questions

### Is Stack 101 Tower free?

Stack 101 Tower is free to download, with no in-app purchases.

### Is CosmoBot free?

CosmoBot is free to download, with in-app purchases available.

### Do Stack 101 Tower or CosmoBot have ads?

Both Stack 101 Tower and CosmoBot show ads.

### Which is updated more often, Stack 101 Tower or CosmoBot?

Stack 101 Tower ships an update every 5 days, and CosmoBot every 2 days. Most recently, Stack 101 Tower was updated on October 2, 2026 and CosmoBot on October 9, 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.*