# Warmup HIIT Interval Timer vs Simple HIIT

The clearest difference is in-app purchases: Simple HIIT at none against Warmup HIIT Interval Timer's 3. Simple HIIT also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Warmup HIIT Interval Timer's advantage is update cadence (every 8 days vs every 31 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. Warmup HIIT Interval Timer sells 3 one-off in-app purchases. Simple HIIT asks for nothing beyond the download.

Warmup HIIT Interval Timer ships an update every 8 days, Simple HIIT every 31 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Warmup HIIT Interval Timer | Simple HIIT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 31 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 2 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Whizbang](https://appshunter.io/developer/478553656) | [Beesoft Apps](https://appshunter.io/developer/1420966143) |

## What reviewers say

### Warmup HIIT Interval Timer

[App page](https://appshunter.io/ios/app/warmup-hiit-interval-timer/id1509032368)

This application provides a free, simple interval timer for HIIT workouts and a countdown timer. It also features a quick workout mode that generates daily exercise challenges.

**Highlights:** HIIT interval timer, Countdown timer, Quick workout feature, Daily exercise challenges, Simple and easy to use

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $5.99 | one-time |


### Simple HIIT

[App page](https://appshunter.io/ios/app/simple-hiit-interval-timer/id6449968373)

This interval timer app helps you manage work and rest periods for various high-intensity interval training (HIIT) workouts. It offers customizable settings for sets, intervals, and rest times, and can run in the background even when the screen is locked.

**Highlights:** Customizable sets and intervals, Background operation with screen locked, Save settings as templates, Adjustable countdown timer, Pause during rest option, Vibrate and timer sound options

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

**In-app purchases:** none


## Frequently asked questions

### Is Warmup HIIT Interval Timer free?

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

### Is Simple HIIT free?

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

### Do Warmup HIIT Interval Timer or Simple HIIT have ads?

Warmup HIIT Interval Timer shows ads; Simple HIIT does not.

### Which is updated more often, Warmup HIIT Interval Timer or Simple HIIT?

Warmup HIIT Interval Timer ships an update every 8 days, and Simple HIIT every 31 months. Most recently, Warmup HIIT Interval Timer was updated on October 24, 2026 and Simple HIIT on October 30, 2026.

---

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