# JotShelf vs ChatNPU

The clearest difference is iOS requirement: ChatNPU at 16.0 against JotShelf's 18.6. 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 | JotShelf | ChatNPU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 8 days |
| Size | 4 MB | 3 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Marko Zamurovic](https://appshunter.io/developer/1876493192) | [RBN SPC LTD](https://appshunter.io/developer/1865350457) |

## What reviewers say

### JotShelf

[App page](https://appshunter.io/ios/app/jotshelf/id6760388919)

**In-app purchases:** none


### ChatNPU

[App page](https://appshunter.io/ios/app/chatnpu/id6761174172)

**In-app purchases:** none


## Frequently asked questions

### Is JotShelf free?

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

### Is ChatNPU free?

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

### Do JotShelf or ChatNPU have ads?

Neither JotShelf nor ChatNPU 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.*