# Promptron vs Notebooker AI

The clearest difference is in-app purchases: Notebooker AI at none against Promptron's 1. Notebooker AI also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Promptron sells 1 in-app purchase, starting at $4.99 per month. Notebooker AI asks for nothing beyond the download.

Promptron ships an update every 3 weeks, Notebooker AI every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Promptron | Notebooker AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 8 MB | 30 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YIMING WANG](https://appshunter.io/developer/6776091890) | [Austin Devs LLC](https://appshunter.io/developer/1518440718) |

## What reviewers say

### Promptron

[App page](https://appshunter.io/ios/app/promptron/id6776091498)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Promptron Pro | $4.99 | per month |


### Notebooker AI

[App page](https://appshunter.io/ios/app/notebooker-ai/id6780671228)

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

**In-app purchases:** none


## Frequently asked questions

### Is Promptron free?

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

### Is Notebooker AI free?

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

### Do Promptron or Notebooker AI have ads?

Neither Promptron nor Notebooker AI shows ads.

### Which is updated more often, Promptron or Notebooker AI?

Promptron ships an update every 3 weeks, and Notebooker AI every 2 days. Most recently, Promptron was updated on October 25, 2026 and Notebooker AI on October 28, 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.*