# OnDevice AI vs petal

The clearest difference is in-app purchases: petal at none against OnDevice AI's 1. petal also leads on update cadence (every 9 days vs every 6 months) and iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. OnDevice AI sells 1 one-off in-app purchase. petal asks for nothing beyond the download.

OnDevice AI ships an update every 6 months, petal every 9 days. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | OnDevice AI | petal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/petal-notes/id6785715493/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 6 MB | 7 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Florin Valentin Micu](https://appshunter.io/developer/1809245808) | [Aaditya Sharma](https://appshunter.io/developer/6785715495) |

## What reviewers say

### OnDevice AI

[App page](https://appshunter.io/ios/app/ondevice-ai/id6752406563)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Features | $29.99 | one-time |


### petal

[App page](https://appshunter.io/ios/app/petal-notes/id6785715493)

This app provides a private space to capture and organize your thoughts without immediate categorization. It offers smart sorting, rich text editing, document scanning, and offline functionality, ensuring your ideas are saved and easily retrievable.

**Highlights:** Capture first, file later, Smart sorting learns your preferences, Document scanning to searchable PDFs, Rich text editing with formatting options, Dictation for voice-to-text notes, Offline functionality, Recently deleted notes recovery

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

**In-app purchases:** none


## Frequently asked questions

### Is OnDevice AI free?

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

### Is petal free?

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

### Do OnDevice AI or petal have ads?

Neither OnDevice AI nor petal shows ads.

### Which is updated more often, OnDevice AI or petal?

OnDevice AI ships an update every 6 months, and petal every 9 days. Most recently, OnDevice AI was updated on October 25, 2026 and petal on October 21, 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.*