# ClusterSum vs knocky

The clearest difference is in-app purchases: knocky at none against ClusterSum's 10. knocky also leads on iOS requirement (14.0 vs 16.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | ClusterSum | knocky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 10 MB | 83 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Snake Johns](https://appshunter.io/developer/1876441740) | [Adem Guclu](https://appshunter.io/developer/1192501965) |

## 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 |


### knocky

[App page](https://appshunter.io/ios/app/knocky/id6761326370)

**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 knocky free?

knocky is free to download, with no in-app purchases.

### Do ClusterSum or knocky have ads?

Neither ClusterSum nor knocky 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.*