# Seconds Interval Timer vs HIIT Timer

The clearest difference is rating: Seconds Interval Timer at 4.7 against HIIT Timer's 3.5. Seconds Interval Timer also leads on ratings volume (24K vs 2). HIIT Timer's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 74%). On price, ads and device support there is nothing between them.

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

Seconds Interval Timer holds the better App Store score, 4.7 against 3.5. 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: 74% of Seconds Interval Timer's written reviews are positive against 100% of HIIT 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, HIIT Timer fortnightly. The most recent releases landed on November 14, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | HIIT Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/hiit-timer-interval-and-tabata/id6795821541/reviews) |
| Number of ratings | **24K** | 2 |
| Positive reviews | 74.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 99 MB | 37 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [ANNR Studio](https://appshunter.io/developer/6785540709) |

## What reviewers say

### Seconds Interval Timer

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

This interval timer app helps you build and run custom workouts for HIIT, Tabata, and circuits. It provides voice cues, runs in the background, and syncs with Apple Watch. Save workouts to Apple Health and track calories burned.

**Highlights:** Build custom timers for any workout, Voice cues for intervals, Runs in background with screen off, Syncs with Apple Watch, Color-coded interval display, Save workouts to Apple Health, Play music with cues

**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


### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer-interval-and-tabata/id6795821541)

This interval training app provides voice-guided workouts for Tabata, EMOM, Circuit, and custom routines. It allows users to focus on their exercises without constantly checking their screen, with features like saved workouts and workout history.

**Highlights:** Voice announcements for workout cues, Multiple training modes (Tabata, EMOM, Circuit, Custom), Save and replay custom workouts, Workout history tracking, Independent sound, haptic, and voice controls, Music integration with voice cues

**Features:** macOS Compatibility, Vision Pro support

**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 HIIT Timer free?

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

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

Seconds Interval Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while HIIT Timer averages 3.5 from 2 ratings.

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

Neither Seconds Interval Timer nor HIIT Timer shows ads.

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

Seconds Interval Timer ships an update monthly, and HIIT Timer fortnightly. Most recently, Seconds Interval Timer was updated on November 14, 2026 and HIIT Timer on November 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.*