# Seconds Interval Timer vs Exercise HIIT Interval Timer

The clearest difference is review sentiment: Exercise HIIT Interval Timer at 100% against Seconds Interval Timer's 75%. Exercise HIIT Interval Timer also leads on iOS requirement (16.0 vs 18.0). Seconds Interval Timer's advantage is ratings volume (24K vs 2) and update cadence (monthly vs every 3 months). 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 Exercise HIIT Interval Timer sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Seconds Interval Timer holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 75% of Seconds Interval Timer's written reviews are positive against 100% of Exercise HIIT Interval Timer's, so the app with the better star average is not the one people write more warmly about.

Seconds Interval Timer ships an update monthly, Exercise HIIT Interval Timer every 3 months. The most recent releases landed on September 30, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Exercise HIIT Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/exercise-hiit-interval-timer/id1595647110/reviews) |
| Number of ratings | **24K** | 2 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 95 MB | 5 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Maxim Antonov](https://appshunter.io/developer/846051995) |

## 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


### Exercise HIIT Interval Timer

[App page](https://appshunter.io/ios/app/exercise-hiit-interval-timer/id1595647110)

Design and execute custom high-intensity interval training routines with this versatile workout timer. Tailor your sessions with adjustable work and rest periods, rounds, and exercise names. Track progress and stay motivated with audio cues and spoken announcements.

**Highlights:** Customizable workout routines, Adjustable work and rest intervals, Spoken exercise announcements, Audio cues for timing, Apple Watch companion app, Progress monitoring

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |
| Premium | $8.49 | per year |


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is Exercise HIIT Interval Timer free?

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

### Which has better reviews, Seconds Interval Timer or Exercise HIIT Interval Timer?

Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Exercise HIIT Interval Timer averages 4.5 from 2 ratings.

### Do Seconds Interval Timer or Exercise HIIT Interval Timer have ads?

Neither Seconds Interval Timer nor Exercise HIIT Interval Timer shows ads.

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

Seconds Interval Timer ships an update monthly, and Exercise HIIT Interval Timer every 3 months. Most recently, Seconds Interval Timer was updated on September 30, 2026 and Exercise HIIT Interval Timer on August 13, 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.*