# HIIT Timer 2000 vs PeakInterval

The clearest difference is in-app purchases: HIIT Timer 2000 at none against PeakInterval's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PeakInterval sells 2 in-app purchases, starting at $3.99 per month. HIIT Timer 2000 asks for nothing beyond the download.

HIIT Timer 2000 ships an update every 2 days, PeakInterval every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | HIIT Timer 2000 | PeakInterval |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Anton Popov](https://appshunter.io/developer/6773402224) | [OANA RINALDI](https://appshunter.io/developer/1709880614) |

## What reviewers say

### HIIT Timer 2000

[App page](https://appshunter.io/ios/app/hiit-timer-2000/id6773600697)

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

**In-app purchases:** none


### PeakInterval

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

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peak Plus Monthly | $3.99 | per month |
| Peak Plus Annual | $24.99 | per year |


## Frequently asked questions

### Is HIIT Timer 2000 free?

HIIT Timer 2000 is free to download, with no in-app purchases.

### Is PeakInterval free?

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

### Do HIIT Timer 2000 or PeakInterval have ads?

Neither HIIT Timer 2000 nor PeakInterval shows ads.

### Which is updated more often, HIIT Timer 2000 or PeakInterval?

HIIT Timer 2000 ships an update every 2 days, and PeakInterval every 4 days. Most recently, HIIT Timer 2000 was updated on October 24, 2026 and PeakInterval 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.*