# HIIT Interval Timer & Tracker vs PaceTrain

The clearest difference is iOS requirement: HIIT Interval Timer & Tracker at 12.0 against PaceTrain's 18.3. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. HIIT Interval Timer & Tracker sells 4 in-app purchases, starting at $1.99 per 7 days and PaceTrain sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HIIT Interval Timer & Tracker ships an update every 3 weeks, PaceTrain every 2 weeks. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer & Tracker | PaceTrain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 57 MB | 6 MB |
| Requires iOS | **12.0** | 18.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Ech-Chafai Kadri](https://appshunter.io/developer/1789520174) | [琛 张](https://appshunter.io/developer/1895321314) |

## What reviewers say

### HIIT Interval Timer & Tracker

[App page](https://appshunter.io/ios/app/hiit-interval-timer-and-tracker/id6742692409)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $1.99 | per 7 days |
| Monthly Pro | $4.99 | per month |
| Yearly Pro | $19.99 | per year |
| Pro Access | $19.99 | one-time |


### PaceTrain

[App page](https://appshunter.io/ios/app/pacetrain/id6764787636)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pace Pro | $6.99 | one-time |


## Frequently asked questions

### Is HIIT Interval Timer & Tracker free?

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

### Is PaceTrain free?

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

### Do HIIT Interval Timer & Tracker or PaceTrain have ads?

Neither HIIT Interval Timer & Tracker nor PaceTrain shows ads.

### Which is updated more often, HIIT Interval Timer & Tracker or PaceTrain?

HIIT Interval Timer & Tracker ships an update every 3 weeks, and PaceTrain every 2 weeks. Most recently, HIIT Interval Timer & Tracker was updated on September 10, 2026 and PaceTrain 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.*