# Seconds Pro Interval Timer vs Circuit Training Timer Lite

The clearest difference is price: Circuit Training Timer Lite at Free against Seconds Pro Interval Timer's $7.99. Circuit Training Timer Lite also leads on iOS requirement (12.0 vs 18.0). Seconds Pro Interval Timer's advantage is in-app purchases (none vs 3) and ratings volume (12K vs 468). On rating, review sentiment, ads and device support there is nothing between them.

Circuit Training Timer Lite is free to download; Seconds Pro Interval Timer costs $7.99 up front. Circuit Training Timer Lite sells 3 one-off in-app purchases. Seconds Pro Interval Timer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Seconds Pro Interval Timer against 4.8 for Circuit Training Timer Lite. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 468, so its average is the more settled of the two. Written reviews are what separate them: 80% of Seconds Pro Interval Timer's written reviews are positive against 85% of Circuit Training Timer Lite's.

Seconds Pro Interval Timer ships an update fortnightly, Circuit Training Timer Lite every 6 weeks. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Seconds Pro Interval Timer | Circuit Training Timer Lite |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews) | [4.8 (468 ratings)](https://appshunter.io/ios/app/circuit-training-timer-lite/id903631807/reviews) |
| Number of ratings | **12K** | 468 |
| Positive reviews | 79.7% of reviews | **84.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#8** | — |
| Size | 94 MB | 36 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [DenciSoft s.r.o.](https://appshunter.io/developer/583724967) |

## What reviewers say

### Seconds Pro Interval Timer

[App page](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811)

**Currently charting:** #8 Top Paid · Health & Fitness, #89 Top Paid (US App Store)

This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.

**Highlights:** Full screen colored display, Templates for HIIT, Tabata, Circuit Training, Speaks interval names and provides warnings, Assign music per interval, Runs in background, Share interval timers, Apple Health integration

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Great updates
- 🤖 Amazing voice prompts
- 👍 Easy to use
- 🎨 Highly customizable
- 🔧 Versatile for various workouts

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔌 Music volume issues
- 🔍 Complicated setup for some features
- 🌐 Sync/sharing issues between devices
- 🔇 Inconsistent audio cues

**Reported bugs**

- Intervals randomly pausing or skipping
- Music volume issues when launching the app
- Inconsistent audio cues and countdown
- Sync issues between devices

**Requested features**

- Ability to lock Apple Watch screen
- Option to see more than just the next exercise
- Fractional time settings (e.g. 7.74 seconds)
- More voice/audio customization options
- Improved sync between iPhone and iPad


### Circuit Training Timer Lite

[App page](https://appshunter.io/ios/app/circuit-training-timer-lite/id903631807)

This app coaches your workouts with customizable timers, allowing you to focus on training. It supports location tracking for detailed statistics and heart rate monitoring with Bluetooth LE devices. Voice coaching and clear visual cues keep you informed without needing to check your screen.

**Highlights:** Customizable interval timers, Location tracking for stats, Bluetooth LE heart rate monitor support, Voice coaching and notifications, Workout history tracking, iCloud synchronization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Unlimited Timers | $1.99 | one-time |
| Full Version | $2.99 | one-time |

**What reviewers like**

- 👍 Highly customizable workouts
- 🎶 Music integration
- ⏱️ Flexible timer settings
- 🔊 Voice prompts for exercises
- 📚 Saved workout routines

**What reviewers complain about**

- 🔋 Battery drain issues
- 🔒 Limited functionality in free version
- 🔇 Quiet audio prompts
- 📈 Lack of workout history/progress tracking

**Reported bugs**

- Playlist sync issues
- App crashes when phone is locked

**Requested features**

- Ability to share workout routines
- Integration with fitness tracking apps
- More advanced statistics and analytics
- Apple Watch app support


## Frequently asked questions

### Is Seconds Pro Interval Timer free?

Seconds Pro Interval Timer costs $7.99, with no in-app purchases.

### Is Circuit Training Timer Lite free?

Circuit Training Timer Lite is free to download, with in-app purchases available.

### Which has better reviews, Seconds Pro Interval Timer or Circuit Training Timer Lite?

Seconds Pro Interval Timer and Circuit Training Timer Lite are both rated 4.8 out of 5 on the App Store, from 12K and 468 ratings respectively.

### Do Seconds Pro Interval Timer or Circuit Training Timer Lite have ads?

Neither Seconds Pro Interval Timer nor Circuit Training Timer Lite shows ads.

### Which is updated more often, Seconds Pro Interval Timer or Circuit Training Timer Lite?

Seconds Pro Interval Timer ships an update fortnightly, and Circuit Training Timer Lite every 6 weeks. Most recently, Seconds Pro Interval Timer was updated on October 12, 2026 and Circuit Training Timer Lite on October 7, 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.*