# Seconds Interval Timer vs Interval Timer HIIT Workout

The clearest difference is ads: Seconds Interval Timer at none against Interval Timer HIIT Workout's shown. Seconds Interval Timer also leads on ratings volume (24K vs 328) and review sentiment (75% vs 67%). Interval Timer HIIT Workout's advantage is update cadence (weekly vs monthly). On price, rating, 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 Interval Timer HIIT Workout sells 5 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 — 4.7 for Seconds Interval Timer against 4.8 for Interval Timer HIIT Workout. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 328, so its average is the more settled of the two. Written reviews are what separate them: 75% of Seconds Interval Timer's written reviews are positive against 67% of Interval Timer HIIT Workout's.

Seconds Interval Timer ships an update monthly, Interval Timer HIIT Workout weekly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Interval Timer HIIT Workout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | **[4.8 (328 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id6741055716/reviews)** |
| Number of ratings | **24K** | 328 |
| Positive reviews | **74.8% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 95 MB | 109 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Roli LLC](https://appshunter.io/developer/1792785559) |

## 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


### Interval Timer HIIT Workout

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workout/id6741055716)

Customize your HIIT and Tabata workouts with this versatile interval timer. Features AI voice cues from celebrity personalities, music integration, and Apple Health syncing. Track your progress and share routines with ease.

**Highlights:** Customizable work/rest periods, AI voice cues from celebrity personalities, Music integration, Apple Health & Apple Watch sync, Save and organize workouts, Real-time exercise on-screen cues, Share workouts with others

**Features:** Family Sharing, Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| One Time Purchase | $19.99 | one-time |


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is Interval Timer HIIT Workout free?

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

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

Interval Timer HIIT Workout is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Interval Timer HIIT Workout averages 4.8 from 328 ratings.

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

Interval Timer HIIT Workout shows ads; Seconds Interval Timer does not.

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

Seconds Interval Timer ships an update monthly, and Interval Timer HIIT Workout weekly. Most recently, Seconds Interval Timer was updated on October 5, 2026 and Interval Timer HIIT Workout on October 1, 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.*