# Audio Notello vs CatDo

The clearest difference is update cadence: Audio Notello at weekly against CatDo's every 10 months. CatDo's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Audio Notello ships an update weekly, CatDo every 10 months. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Audio Notello | CatDo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 months |
| Size | 8 MB | 117 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aleksey Chanov](https://appshunter.io/developer/1547499003) | [Dinu Stefan Rusu](https://appshunter.io/developer/1697162965) |

## What reviewers say

### Audio Notello

[App page](https://appshunter.io/ios/app/audio-notello/id6742573183)

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

**In-app purchases:** none


### CatDo

[App page](https://appshunter.io/ios/app/catdo-your-study-buddy/id6751812918)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Audio Notello free?

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

### Is CatDo free?

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

### Do Audio Notello or CatDo have ads?

Neither Audio Notello nor CatDo shows ads.

### Which is updated more often, Audio Notello or CatDo?

Audio Notello ships an update weekly, and CatDo every 10 months. Most recently, Audio Notello was updated on October 8, 2026 and CatDo on October 7, 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.*