# ClusterSum vs Gravity Orbit Lab

The clearest difference is in-app purchases: Gravity Orbit Lab at none against ClusterSum's 10. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ClusterSum sells 10 one-off in-app purchases. Gravity Orbit Lab asks for nothing beyond the download.

## The numbers

| Metric | ClusterSum | Gravity Orbit Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 10 MB | 7 MB |
| Requires iOS | 16.0 | **15** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Snake Johns](https://appshunter.io/developer/1876441740) | [珺瑞 王](https://appshunter.io/developer/1861829279) |

## What reviewers say

### ClusterSum

[App page](https://appshunter.io/ios/app/clustersum/id6759361328)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Treasure Bag | $4.99 | one-time |
| Santa's Coin Sack | $4.99 | one-time |
| Vault Drop | $9.99 | one-time |
| Holiday Weekend Boost | $9.99 | one-time |
| Long Weekend Vault | $19.99 | one-time |
| North Pole Mega Chest | $19.99 | one-time |
| King's Reserve | $29.99 | one-time |
| Royal Hoard | $49.99 | one-time |
| Imperial Vault | $79.99 | one-time |
| Mega Pack | $99.99 | one-time |


### Gravity Orbit Lab

[App page](https://appshunter.io/ios/app/gravity-orbit-lab/id6760806733)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClusterSum free?

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

### Is Gravity Orbit Lab free?

Gravity Orbit Lab is free to download, with no in-app purchases.

### Do ClusterSum or Gravity Orbit Lab have ads?

Neither ClusterSum nor Gravity Orbit Lab shows ads.

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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.*