# Haiku Note vs Proof Recorder

The clearest difference is in-app purchases: Proof Recorder at none against Haiku Note's 1. Proof Recorder also leads on update cadence (every 10 days vs every 5 weeks). Haiku Note's advantage is iOS requirement (14.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Haiku Note sells 1 one-off in-app purchase. Proof Recorder asks for nothing beyond the download.

Haiku Note ships an update every 5 weeks, Proof Recorder every 10 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Haiku Note | Proof Recorder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 8 MB | 12 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [Saturn Studio](https://appshunter.io/developer/1491356325) |

## What reviewers say

### Haiku Note

[App page](https://appshunter.io/ios/app/haiku-note/id1617431925)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


### Proof Recorder

[App page](https://appshunter.io/ios/app/proof-recorder-save-and-email/id6761300996)

**In-app purchases:** none


## Frequently asked questions

### Is Haiku Note free?

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

### Is Proof Recorder free?

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

### Do Haiku Note or Proof Recorder have ads?

Both Haiku Note and Proof Recorder show ads.

### Which is updated more often, Haiku Note or Proof Recorder?

Haiku Note ships an update every 5 weeks, and Proof Recorder every 10 days. Most recently, Haiku Note was updated on October 5, 2026 and Proof Recorder on October 18, 2026.

---

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