# AI ToneFix vs Numerus

The clearest difference is iOS requirement: Numerus at 16.4 against AI ToneFix's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | AI ToneFix | Numerus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Size | 12 MB | 34 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zossoz](https://appshunter.io/developer/1885670786) | [Viento Digital](https://appshunter.io/developer/768009504) |

## What reviewers say

### AI ToneFix

[App page](https://appshunter.io/ios/app/ai-tonefix/id6761016657)

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

**In-app purchases:** none


### Numerus

[App page](https://appshunter.io/ios/app/numerus-calculation-notebook/id6798961056)

**In-app purchases:** none


## Frequently asked questions

### Is AI ToneFix free?

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

### Is Numerus free?

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

### Do AI ToneFix or Numerus have ads?

Neither AI ToneFix nor Numerus 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.*