# Seconds Interval Timer vs Round Timer

The clearest difference is ads: Seconds Interval Timer at none against Round Timer's shown. Seconds Interval Timer also leads on ratings volume (24K vs 296). Round Timer's advantage is iOS requirement (15.0 vs 18.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase and Round Timer sells 8 in-app purchases, starting at $3.99 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 Round Timer. That said, the two scores are not equally well evidenced: Seconds Interval Timer has 24K ratings behind it against 296, 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 73% of Round Timer's.

Seconds Interval Timer ships an update monthly, Round Timer every 3 weeks. The most recent releases landed on September 26, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Round Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | **[4.8 (296 ratings)](https://appshunter.io/ios/app/round-timer-purehiit/id1198752738/reviews)** |
| Number of ratings | **24K** | 296 |
| Positive reviews | **75.0% of reviews** | 73.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 95 MB | 39 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Miklos Pavel](https://appshunter.io/developer/979923367) |

## 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


### Round Timer

[App page](https://appshunter.io/ios/app/round-timer-purehiit/id1198752738)

This app provides a simple and customizable timer for interval training like HIIT, Tabata, and EMOM. It offers audio cues, background operation, and integrates with Apple Watch for health tracking. Pre-built routines and workout reminders help users stay consistent with their fitness goals.

**Highlights:** Customizable interval timer, Audio alerts for rounds, Background operation, Apple Watch integration, Workout reminders, Pre-built routines

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Premium features | Free | one-time |
| Remove Ads | $1.99 | one-time |
| Custom sounds | $1.99 | one-time |
| Premium features | $4.99 | one-time |
| Premium features | $9.99 | one-time |
| Premium features | $14.99 | one-time |


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is Round Timer free?

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

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

Round Timer is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Round Timer averages 4.8 from 296 ratings.

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

Round Timer shows ads; Seconds Interval Timer does not.

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

Seconds Interval Timer ships an update monthly, and Round Timer every 3 weeks. Most recently, Seconds Interval Timer was updated on September 26, 2026 and Round Timer on September 12, 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.*