# Breastfeeding Timer vs Sleep Diary

The clearest difference is in-app purchases: Breastfeeding Timer at none against Sleep Diary's 3. Breastfeeding Timer also leads on update cadence (every 4 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sleep Diary sells 3 in-app purchases, starting at $3.99 per 7 days. Breastfeeding Timer asks for nothing beyond the download.

Breastfeeding Timer ships an update every 4 days, Sleep Diary every 5 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Breastfeeding Timer | Sleep Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 months |
| Size | 13 MB | 5 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takahiko Inada](https://appshunter.io/developer/1749186118) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### Breastfeeding Timer

[App page](https://appshunter.io/ios/app/breastfeeding-timer/id6755299446)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sleep Diary

[App page](https://appshunter.io/ios/app/sleep-diary-manual-rest-log/id6772136477)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Insomnia Journal Weekly | $3.99 | per 7 days |
| Bedtime Habit Yearly | $19.99 | per year |
| Wake Pattern Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Breastfeeding Timer free?

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

### Is Sleep Diary free?

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

### Do Breastfeeding Timer or Sleep Diary have ads?

Neither Breastfeeding Timer nor Sleep Diary shows ads.

### Which is updated more often, Breastfeeding Timer or Sleep Diary?

Breastfeeding Timer ships an update every 4 days, and Sleep Diary every 5 months. Most recently, Breastfeeding Timer was updated on October 28, 2026 and Sleep Diary on October 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.*