# Seconds Interval Timer vs Justfit

The clearest difference is update cadence: Justfit at every 3 days against Seconds Interval Timer's monthly. Justfit also leads on review sentiment (100% vs 75%) and rating (5.0 vs 4.7). Seconds Interval Timer's advantage is ratings volume (24K vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase 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.

Justfit holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of Seconds Interval Timer's written reviews are positive against 100% of Justfit's.

Seconds Interval Timer ships an update monthly, Justfit every 3 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | Seconds Interval Timer | Justfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/justfit-interval-timer-clock/id6449503037/reviews)** |
| Number of ratings | **24K** | 1 |
| Positive reviews | 74.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 95 MB | 104 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Ferda Nahit Fidanci](https://appshunter.io/developer/1689464732) |

## What reviewers say

### Seconds Interval Timer

[App page](https://appshunter.io/ios/app/seconds-interval-timer/id475816966)

This app provides a versatile interval timer for various workout types like Tabata, HIIT, and circuit training. It features a clear, full-screen display, customizable alerts, and background operation. Users can also utilize a stopwatch and countdown timer, with integration for Apple Health.

**Highlights:** Full-screen colored display, Templates for HIIT, Tabata, Circuit Training, Voice and audio alerts, Music assignment per interval, Background operation, Apple Health integration, Stopwatch and countdown timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Version | $7.99 | one-time |

**What reviewers like**

- 🚀 Great workout app
- 👍 Customizable and user-friendly
- 🔒 Reliable and stable
- 💡 Versatile for various workouts
- 👍 Easy to create and edit timers

**What reviewers complain about**

- 🐛 Occasional audio issues
- 🔍 Limited Apple Watch integration
- 💰 Paid version required for full functionality
- 🕰️ Time-consuming to set up complex workouts

**Reported bugs**

- Timer sometimes stops working unexpectedly
- Issues with restoring purchases on new devices

**Requested features**

- Ability to change beep/alert volume independently
- Option to delay transition between intervals
- Sync workouts across devices
- More preset workout templates
- Heart rate monitoring integration


### 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 Seconds Interval Timer free?

Seconds 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, Seconds Interval Timer or Justfit?

Justfit is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Justfit averages 5.0 from 1 ratings.

### Do Seconds Interval Timer or Justfit have ads?

Neither Seconds Interval Timer nor Justfit shows ads.

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

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