# Seconds Pro Interval Timer vs Custom Workout Timer

The clearest difference is price: Custom Workout Timer at Free against Seconds Pro Interval Timer's $7.99. Custom Workout Timer also leads on iOS requirement (15.6 vs 18.0). Seconds Pro Interval Timer's advantage is rating (4.8 vs 3.7) and in-app purchases (none vs 2). On review sentiment, ads and device support there is nothing between them.

Custom Workout Timer is free to download; Seconds Pro Interval Timer costs $7.99 up front. Custom Workout Timer sells 2 one-off in-app purchases. Seconds Pro Interval Timer asks for nothing beyond the download.

Seconds Pro Interval Timer holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Seconds Pro Interval Timer has 12K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 80% of Seconds Pro Interval Timer's written reviews are positive against 88% of Custom Workout Timer's, so the app with the better star average is not the one people write more warmly about.

Seconds Pro Interval Timer ships an update fortnightly, Custom Workout Timer every 6 months. The most recent releases landed on September 30, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Seconds Pro Interval Timer | Custom Workout Timer |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews)** | [3.7 (6 ratings)](https://appshunter.io/ios/app/custom-workout-timer/id895955964/reviews) |
| Number of ratings | **12K** | 6 |
| Positive reviews | 79.9% of reviews | **87.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#11** | — |
| Size | 94 MB | 28 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Encodia, LLC](https://appshunter.io/developer/895955967) |

## What reviewers say

### Seconds Pro Interval Timer

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

**Currently charting:** #11 Top Paid · Health & Fitness (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


### Custom Workout Timer

[App page](https://appshunter.io/ios/app/custom-workout-timer/id895955964)

Design custom workout routines with timed exercises. This app provides spoken prompts for each exercise and countdowns for remaining time. Enjoy your music without interruption during your training sessions.

**Highlights:** Create custom workout routines, Timed exercises, Spoken exercise prompts, Countdown timer, Music player integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| Full App | $1.99 | one-time |


## Frequently asked questions

### Is Seconds Pro Interval Timer free?

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

### Is Custom Workout Timer free?

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

### Which has better reviews, Seconds Pro Interval Timer or Custom Workout Timer?

Seconds Pro Interval Timer is rated higher. Seconds Pro Interval Timer averages 4.8 out of 5 from 12K ratings, while Custom Workout Timer averages 3.7 from 6 ratings.

### Do Seconds Pro Interval Timer or Custom Workout Timer have ads?

Neither Seconds Pro Interval Timer nor Custom Workout Timer shows ads.

### Which is updated more often, Seconds Pro Interval Timer or Custom Workout Timer?

Seconds Pro Interval Timer ships an update fortnightly, and Custom Workout Timer every 6 months. Most recently, Seconds Pro Interval Timer was updated on September 30, 2026 and Custom Workout Timer on June 10, 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.*