# DecimalChat vs ChatSpaceAI

The clearest difference is update cadence: DecimalChat at every 5 days against ChatSpaceAI's every 10 days. ChatSpaceAI's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.5). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DecimalChat ships an update every 5 days, ChatSpaceAI every 10 days. The most recent releases landed on September 16, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | DecimalChat | ChatSpaceAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 10 days |
| Size | 8 MB | 31 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DecimalMath](https://appshunter.io/developer/1709688020) | [Michael Smyth](https://appshunter.io/developer/1869910082) |

## What reviewers say

### DecimalChat

[App page](https://appshunter.io/ios/app/decimalchat/id6736860787)

**In-app purchases:** none


### ChatSpaceAI

[App page](https://appshunter.io/ios/app/chatspaceai/id6757954276)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DecimalChat free?

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

### Is ChatSpaceAI free?

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

### Do DecimalChat or ChatSpaceAI have ads?

Neither DecimalChat nor ChatSpaceAI shows ads.

### Which is updated more often, DecimalChat or ChatSpaceAI?

DecimalChat ships an update every 5 days, and ChatSpaceAI every 10 days. Most recently, DecimalChat was updated on September 16, 2026 and ChatSpaceAI on May 17, 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.*