# Bubble Note vs OTN

The clearest difference is in-app purchases: Bubble Note at none against OTN's 1. Bubble Note also leads on iOS requirement (13.4 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

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

Bubble Note ships an update daily, OTN every 3 days. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Bubble Note | OTN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 3 days |
| Size | 25 MB | 6 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [SY KHANH HO](https://appshunter.io/developer/1851698856) | [SeokHui Lee](https://appshunter.io/developer/1129769874) |

## What reviewers say

### Bubble Note

[App page](https://appshunter.io/ios/app/bubble-note-notes-that-fade/id6786937034)

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

**In-app purchases:** none


### OTN

[App page](https://appshunter.io/ios/app/otn-one-time-note/id6793473020)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OTN Pro | $0.99 | one-time |


## Frequently asked questions

### Is Bubble Note free?

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

### Is OTN free?

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

### Do Bubble Note or OTN have ads?

Both Bubble Note and OTN show ads.

### Which is updated more often, Bubble Note or OTN?

Bubble Note ships an update daily, and OTN every 3 days. Most recently, Bubble Note was updated on September 21, 2026 and OTN on September 19, 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.*