# Interval Timer vs Justfit

The clearest difference is ads: Justfit at none against Interval Timer's shown. Justfit also leads on update cadence (every 3 days vs monthly). Interval Timer's advantage is ratings volume (379 vs 1). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Interval Timer sells 12 in-app purchases, starting at $2.09 per month 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.

On the App Store both sit at effectively the same score — 4.9 for Interval Timer against 5.0 for Justfit. That said, the two scores are not equally well evidenced: Interval Timer has 379 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 97% of Interval Timer's written reviews are positive against 100% of Justfit's.

Interval Timer ships an update monthly, Justfit every 3 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Interval Timer | Justfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (379 ratings)](https://appshunter.io/ios/app/interval-timer-tabata-and-hiit/id6443672034/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/justfit-interval-timer-clock/id6449503037/reviews)** |
| Number of ratings | **379** | 1 |
| Positive reviews | 96.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 113 MB | 104 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [SimpleInnovation LLC](https://appshunter.io/developer/1479770962) | [Ferda Nahit Fidanci](https://appshunter.io/developer/1689464732) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-and-hiit/id6443672034)

This app provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

**Highlights:** Customizable workout setup, Progress tracking with calendar, Saveable custom presets, Color-coded notifications, Listen to music/audiobooks, Large, full-screen display, Widget for easy access

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timer PRO for 1 month: 30% OFF | $2.09 | per month |
| Timer PRO for 1 month: 25% OFF | $2.29 | per month |
| Interval Timer PRO for 1 month | $2.99 | per month |
| Interval Timer PRO for 1 month | $2.99 | per month |
| Interval Timer PRO - 30% OFF | $15.00 | per year |
| Interval Timer PRO - 25% OFF | $16.49 | per year |
| Interval Timer PRO for 1 year | $21.99 | per year |
| Tabata Timer PRO for 1 year | $21.99 | per year |
| Interval Timer - no Ads | $2.99 | one-time |
| HIIT Timer PRO Forever 30% OFF | $27.99 | one-time |
| HIIT Timer PRO Forever 25% OFF | $29.99 | one-time |
| Exercise Timer PRO Forever | $39.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Intuitive interface
- 🔋 Doesn't drain battery
- 💪 Effective for interval training
- 📆 Tracks workout history

**What reviewers complain about**

- 🔔 Frequent prompts to rate the app
- 🔒 Concerns about data privacy and permissions
- 🔧 Limited customization options

**Reported bugs**

- Occasional app crashes
- Compatibility issues with older devices

**Requested features**

- More pre-designed workout routines
- Ability to name and customize exercises
- Option to adjust countdown time between intervals


### Justfit

[App page](https://appshunter.io/ios/app/justfit-interval-timer-clock/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, Apple Watch app, Vision Pro support

**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 Interval Timer free?

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

### Is Justfit free?

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

### Which has better reviews, Interval Timer or Justfit?

Justfit is rated higher. Interval Timer averages 4.9 out of 5 from 379 ratings, while Justfit averages 5.0 from 1 ratings.

### Do Interval Timer or Justfit have ads?

Interval Timer shows ads; Justfit does not.

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

Interval Timer ships an update monthly, and Justfit every 3 days. Most recently, Interval Timer was updated on October 1, 2026 and Justfit on October 3, 2026.

---

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