# Seconds Interval Timer vs HC HIIT Interval Timer

The clearest difference is rating: Seconds Interval Timer at 4.7 against HC HIIT Interval Timer's 4.2. Seconds Interval Timer also leads on update cadence (monthly vs every 21 months) and ratings volume (24K vs 5). HC HIIT Interval Timer's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 75%). On price and ads there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase. HC HIIT Interval Timer asks for nothing beyond the download.

Seconds Interval Timer holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 5, 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 HC 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, HC HIIT Interval Timer every 21 months. The most recent releases landed on September 26, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | HC HIIT Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/hc-hiit-interval-timer/id1501179862/reviews) |
| Number of ratings | **24K** | 5 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 21 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 95 MB | 2 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Dejan Dragic](https://appshunter.io/developer/1501179861) |

## 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


### HC HIIT Interval Timer

[App page](https://appshunter.io/ios/app/hc-hiit-interval-timer/id1501179862)

Create and manage custom interval training workouts with an integrated timer. Design workouts with specific actions, colors, names, and durations. Suitable for personal training or individual fitness routines.

**Highlights:** Create custom workouts, Integrated workout timer, Define actions with color, name, and duration, Use default workouts, Save and reuse workout routines

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is HC HIIT Interval Timer free?

HC HIIT Interval Timer is free to download, with no in-app purchases.

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

Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while HC HIIT Interval Timer averages 4.2 from 5 ratings.

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

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

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

Seconds Interval Timer ships an update monthly, and HC HIIT Interval Timer every 21 months. Most recently, Seconds Interval Timer was updated on September 26, 2026 and HC HIIT Interval Timer on June 4, 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.*