# Seconds Interval Timer vs Interval Timer ++

The clearest difference is ads: Seconds Interval Timer at none against Interval Timer ++'s shown. Interval Timer ++'s advantage is iOS requirement (12.0 vs 18.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Seconds Interval Timer sells 1 one-off in-app purchase and Interval Timer ++ sells 8 in-app purchases, starting at $0.99 per 2 months. 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 ++. Both are backed by a comparable volume of ratings — 24K and 15K respectively. Written reviews are what separate them: 75% of Seconds Interval Timer's written reviews are positive against 78% of Interval Timer ++'s.

Seconds Interval Timer ships an update monthly, Interval Timer ++ every 3 weeks. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Seconds Interval Timer | Interval Timer ++ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (24K ratings)](https://appshunter.io/ios/app/seconds-interval-timer/id475816966/reviews) | **[4.8 (15K ratings)](https://appshunter.io/ios/app/interval-timer-plus-plus/id1327053127/reviews)** |
| Number of ratings | **24K** | 15K |
| Positive reviews | 75.0% of reviews | **78.0% 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 | 87 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Sunny Studio](https://appshunter.io/developer/430274590) |

## 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 ++

[App page](https://appshunter.io/ios/app/interval-timer-plus-plus/id1327053127)

This app provides a customizable interval timer for high-intensity interval training (HIIT) and circuit workouts. Easily set up work, rest, and repeat intervals, track your progress, and integrate with your health data. Enjoy your workouts with background music and notifications.

**Highlights:** Customizable work/rest/repeat intervals, Supports iPhone and Apple Watch, Workout history in calendar view, Health app integration (HealthKit), Background notifications, Listen to music during workouts, Premium timers for mixed fitness types

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer Pro | $0.99 | per 2 months |
| Interval Timer Pro | $0.99 | per 7 days |
| Interval Timer Pro | $1.99 | per 7 days |
| Interval Timer Pro | $1.99 | per month |
| Interval Timer Pro for a Year | $5.99 | per year |
| Premium Timer for One Week | $2.99 | one-time |
| Premium Timer for One Year | $7.99 | one-time |
| Premium Timer for Entire Life | $8.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive interface
- 🚀 Straightforward interval timer functionality
- 💡 Customizable timers and workouts
- 🔒 No ads or in-app purchases required

**What reviewers complain about**

- 🐛 Inconsistent sound and volume issues
- 🐛 Bugs with timer functionality and data sync
- 🔋 High battery consumption when running in background
- 🚫 Limited customization options for timers and workouts

**Reported bugs**

- Timers not working correctly after app updates
- Custom timers not saving or syncing across devices
- Unexpected pausing or stopping of timers during use

**Requested features**

- Ability to name and save custom workouts
- Option to adjust rest time for individual exercises
- Countdown beeps or voice cues during intervals
- Integration with Apple Watch and other fitness devices


## Frequently asked questions

### Is Seconds Interval Timer free?

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

### Is Interval Timer ++ free?

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

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

Interval Timer ++ is rated higher. Seconds Interval Timer averages 4.7 out of 5 from 24K ratings, while Interval Timer ++ averages 4.8 from 15K ratings.

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

Interval Timer ++ shows ads; Seconds Interval Timer does not.

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

Seconds Interval Timer ships an update monthly, and Interval Timer ++ every 3 weeks. Most recently, Seconds Interval Timer was updated on September 25, 2026 and Interval Timer ++ on September 24, 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.*