# HIIT Interval Timer & Tracker vs PrimeFit

The clearest difference is ads: HIIT Interval Timer & Tracker at none against PrimeFit's shown. HIIT Interval Timer & Tracker also leads on update cadence (every 3 weeks vs every 8 months) and iOS requirement (12.0 vs 16.4). On price, in-app purchases and device support 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 PrimeFit sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

HIIT Interval Timer & Tracker ships an update every 3 weeks, PrimeFit every 8 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer & Tracker | PrimeFit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Size | 57 MB | 68 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ech-Chafai Kadri](https://appshunter.io/developer/1789520174) | [Arkadiusz Ilkow](https://appshunter.io/developer/1715321254) |

## 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 |


### PrimeFit

[App page](https://appshunter.io/ios/app/primefit-rep-counter/id6758507599)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM MONTH | $1.99 | per month |
| PREMIUM YEAR | $12.99 | per year |


## Frequently asked questions

### Is HIIT Interval Timer & Tracker free?

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

### Is PrimeFit free?

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

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

PrimeFit shows ads; HIIT Interval Timer & Tracker does not.

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

HIIT Interval Timer & Tracker ships an update every 3 weeks, and PrimeFit every 8 months. Most recently, HIIT Interval Timer & Tracker was updated on October 30, 2026 and PrimeFit on October 31, 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.*