# Simple Notes. vs Catalog AI

The clearest difference is in-app purchases: Catalog AI at none against Simple Notes.'s 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Simple Notes. sells 3 one-off in-app purchases. Catalog AI asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Simple Notes. | Catalog AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (61 ratings)](https://appshunter.io/ios/app/simple-notes/id1104759509/reviews)** | — |
| Number of ratings | **61** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 4 MB | 21 MB |
| Requires iOS | **14.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuto Iwakami](https://appshunter.io/developer/1584545568) | [Catalogplayer](https://appshunter.io/developer/541470387) |

## What reviewers say

### Simple Notes.

[App page](https://appshunter.io/ios/app/simple-notes/id1104759509)

This app offers a straightforward way to create, manage, and share text-based notes. It focuses on essential features like character counting and sorting, with seamless integration for sharing via messaging apps.

**Highlights:** Create text notes, Character count display, Sort notes, Widget support, Instant sharing via Messages, Automatic saving

**Features:** iMessage stickers, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $5.99 | one-time |


### Catalog AI

[App page](https://appshunter.io/ios/app/catalog-ai/id6760642784)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Notes. free?

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

### Is Catalog AI free?

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

### Do Simple Notes. or Catalog AI have ads?

Neither Simple Notes. nor Catalog AI shows ads.

### Which is updated more often, Simple Notes. or Catalog AI?

Simple Notes. ships an update every 2 months, and Catalog AI every 2 months. Most recently, Simple Notes. was updated on October 13, 2026 and Catalog AI on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*