# Warmup HIIT Interval Timer vs Justfit

The clearest difference is ads: Justfit at none against Warmup HIIT Interval Timer's shown. Justfit also leads on update cadence (every 4 days vs every 8 days) and iOS requirement (13.0 vs 15.0). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Warmup HIIT Interval Timer sells 3 one-off in-app purchases and Justfit sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Warmup HIIT Interval Timer ships an update every 8 days, Justfit every 4 days. The most recent releases landed on June 4, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Warmup HIIT Interval Timer | Justfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/justfit-tabata-interval-timer/id6449503037/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 6 MB | 66 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Whizbang](https://appshunter.io/developer/478553656) | [Ferda Nahit Fidanci](https://appshunter.io/developer/1689464732) |

## 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 |


### Justfit

[App page](https://appshunter.io/ios/app/justfit-tabata-interval-timer/id6449503037)

This app provides customizable interval timers for various activities like HIIT, Tabata, meditation, and studying. Track your progress with detailed history and analytics, and personalize your experience with custom sounds and colors.

**Highlights:** Fully customizable interval timers, Full-screen circular countdown/countup stopwatch, Pre-made templates for HIIT, Tabata, Meditation, Customizable audio for intervals, sets, and rest, Detailed progress tracking and analytics, Timer sharing via export/import, Multilanguage support

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $7.99 | per year |
| Lifetime Access | $3.99 | one-time |
| Lifetime Access | $7.99 | one-time |


## Frequently asked questions

### Is Warmup HIIT Interval Timer free?

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

### Is Justfit free?

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

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

Warmup HIIT Interval Timer shows ads; Justfit does not.

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

Warmup HIIT Interval Timer ships an update every 8 days, and Justfit every 4 days. Most recently, Warmup HIIT Interval Timer was updated on June 4, 2026 and Justfit on June 11, 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.*