# Cluster2A vs MarsChat

The clearest difference is iOS requirement: MarsChat at 11.0 against Cluster2A's 26.2. On price and in-app purchases there is nothing between them.

Both are free to download. Cluster2A sells 2 one-off in-app purchases and MarsChat sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Cluster2A | MarsChat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 9 MB | 42 MB |
| Requires iOS | 26.2 | **11.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [Chu-Yi Chang](https://appshunter.io/developer/943416679) | [垚楠 卜](https://appshunter.io/developer/1691676109) |

## What reviewers say

### Cluster2A

[App page](https://appshunter.io/ios/app/cluster2a/id1544599436)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| K-means Model | $1.99 | one-time |
| DBSCAN Model | $1.99 | one-time |


### MarsChat

[App page](https://appshunter.io/ios/app/marschat/id6450033150)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 火星Chat 会员使用权一个月 | $2.99 | one-time |
| 火星Chat 会员使用权3个月 | $6.99 | one-time |
| 火星Chat 会员使用权12个月 | $24.99 | one-time |


## Frequently asked questions

### Is Cluster2A free?

Cluster2A is free to download, with in-app purchases available.

### Is MarsChat free?

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

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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.*