# Sleep Note vs Bubbles

The clearest difference is in-app purchases: Sleep Note at none against Bubbles's 2. Sleep Note also leads on update cadence (every 4 days vs every 8 days) and iOS requirement (15.1 vs 18.0). Bubbles's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Bubbles sells 2 in-app purchases, starting at $4.99 per month. Sleep Note asks for nothing beyond the download.

Sleep Note ships an update every 4 days, Bubbles every 8 days. Both last shipped on September 24, 2026.

## The numbers

| Metric | Sleep Note | Bubbles |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 8 days |
| Size | 38 MB | 24 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Kengo Kanehiro](https://appshunter.io/developer/1869857869) | [Sunil PM](https://appshunter.io/developer/1896290467) |

## What reviewers say

### Sleep Note

[App page](https://appshunter.io/ios/app/sleep-note/id6758096161)

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

**In-app purchases:** none


### Bubbles

[App page](https://appshunter.io/ios/app/bubbles-step-tracker-pet-fish/id6766446326)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Sleep Note free?

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

### Is Bubbles free?

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

### Do Sleep Note or Bubbles have ads?

Sleep Note shows ads; Bubbles does not.

### Which is updated more often, Sleep Note or Bubbles?

Sleep Note ships an update every 4 days, and Bubbles every 8 days. Most recently, Sleep Note was updated on September 24, 2026 and Bubbles on September 24, 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.*