# Pump Diary vs Interval Timer

The clearest difference is update cadence: Pump Diary at every 5 days against Interval Timer's every 5 weeks. Pump Diary also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Pump Diary sells 2 in-app purchases, starting at $3.99 per month and Interval Timer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Pump Diary ships an update every 5 days, Interval Timer every 5 weeks. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Pump Diary | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 50 MB | 33 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Roberto Galati](https://appshunter.io/developer/1884588688) | [Volodymyr Yahenskyi](https://appshunter.io/developer/961335645) |

## What reviewers say

### Pump Diary

[App page](https://appshunter.io/ios/app/pump-diary-milk-and-pumping/id6760467164)

This app helps breastfeeding and pumping parents track their milk expression sessions. It offers features like recording volume, duration, and notes, setting reminders, and managing milk inventory. Premium features unlock detailed statistics and guided pumping sessions.

**Highlights:** Record milk expression sessions, Track volume, duration, and notes, Set custom pumping reminders, Manage milk inventory (fridge/freezer), Guided Power Pumping sessions, Optional cloud backup and sharing

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pump Diary Monthly Subscription | $3.99 | per month |
| Pump Diary Annual Subscription | $36.00 | per year |


### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiitual/id6787092191)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly plan | $4.99 | per 7 days |
| Annual plan | $39.99 | per year |


## Frequently asked questions

### Is Pump Diary free?

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

### Is Interval Timer free?

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

### Do Pump Diary or Interval Timer have ads?

Neither Pump Diary nor Interval Timer shows ads.

### Which is updated more often, Pump Diary or Interval Timer?

Pump Diary ships an update every 5 days, and Interval Timer every 5 weeks. Most recently, Pump Diary was updated on September 26, 2026 and Interval Timer 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.*