# Promise Piece vs TreeNote

The clearest difference is in-app purchases: Promise Piece at none against TreeNote's 1. Promise Piece also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TreeNote sells 1 one-off in-app purchase. Promise Piece asks for nothing beyond the download.

Promise Piece ships an update every 4 days, TreeNote weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Promise Piece | TreeNote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/treenote-nested-notes/id6772667012/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | — | Freemium |
| Size | 2 MB | 7 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Mill](https://appshunter.io/developer/1861134631) | [Zhe Wu](https://appshunter.io/developer/1821356459) |

## What reviewers say

### Promise Piece

[App page](https://appshunter.io/ios/app/promise-piece/id6757153657)

**Features:** macOS Compatibility

**In-app purchases:** none


### TreeNote

[App page](https://appshunter.io/ios/app/treenote-nested-notes/id6772667012)

Organize complex ideas into clear, nested outlines. Create boards for various projects and break down thoughts into detailed subnotes. Supports rich formatting, Markdown, and local data storage with optional iCloud sync.

**Highlights:** Unlimited nesting for flexible trees, Drag-and-drop reordering, Rich note details (tags, colors, due dates, images), Markdown formatting and preview, Import/export JSON, Markdown, OPML, Local data storage with iCloud sync

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TreeNote Pro | $2.99 | one-time |


## Frequently asked questions

### Is Promise Piece free?

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

### Is TreeNote free?

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

### Do Promise Piece or TreeNote have ads?

Neither Promise Piece nor TreeNote shows ads.

### Which is updated more often, Promise Piece or TreeNote?

Promise Piece ships an update every 4 days, and TreeNote weekly. Most recently, Promise Piece was updated on October 25, 2026 and TreeNote on October 28, 2026.

---

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