# Peak Intervals vs PeakInterval

The clearest difference is in-app purchases: PeakInterval at none against Peak Intervals's 2. PeakInterval also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Peak Intervals sells 2 in-app purchases, starting at $9.99 per month. PeakInterval asks for nothing beyond the download.

Peak Intervals ships an update every 4 days, PeakInterval every 3 days. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Peak Intervals | PeakInterval |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 13 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Justin Polidori](https://appshunter.io/developer/1866410754) | [OANA RINALDI](https://appshunter.io/developer/1709880614) |

## What reviewers say

### Peak Intervals

[App page](https://appshunter.io/ios/app/peak-intervals/id6757667069)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $9.99 | per month |
| Pro Yearly | $49.99 | per year |


### PeakInterval

[App page](https://appshunter.io/ios/app/peakinterval-hiit-timer/id6790185600)

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

**In-app purchases:** none


## Frequently asked questions

### Is Peak Intervals free?

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

### Is PeakInterval free?

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

### Do Peak Intervals or PeakInterval have ads?

Neither Peak Intervals nor PeakInterval shows ads.

### Which is updated more often, Peak Intervals or PeakInterval?

Peak Intervals ships an update every 4 days, and PeakInterval every 3 days. Most recently, Peak Intervals was updated on September 25, 2026 and PeakInterval on September 21, 2026.

---

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