# Seconds Pro Interval Timer vs Intervals Pro

The clearest difference is price: Intervals Pro at Free against Seconds Pro Interval Timer's $7.99. Seconds Pro Interval Timer's advantage is in-app purchases (none vs 8) and chart position (#11 vs unranked). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

Intervals Pro is free to download; Seconds Pro Interval Timer costs $7.99 up front. Intervals Pro sells 8 in-app purchases, starting at $2.99 per month. 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 Intervals Pro. Both are backed by a comparable volume of ratings — 12K and 14K respectively. Written reviews are what separate them: 80% of Seconds Pro Interval Timer's written reviews are positive against 84% of Intervals Pro's.

Seconds Pro Interval Timer ships an update fortnightly, Intervals Pro every 8 days. Both last shipped on September 24, 2026.

## The numbers

| Metric | Seconds Pro Interval Timer | Intervals Pro |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [4.8 (12K ratings)](https://appshunter.io/ios/app/seconds-pro-interval-timer/id363978811/reviews) | [4.8 (14K ratings)](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938/reviews) |
| Number of ratings | 12K | **14K** |
| Positive reviews | 79.9% of reviews | **84.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#11** | — |
| Size | 94 MB | 69 MB |
| Requires iOS | 18.0 | **17.5** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Runloop Ltd](https://appshunter.io/developer/325563420) | [Intervals, LLC](https://appshunter.io/developer/331071662) |

## 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


### Intervals Pro

[App page](https://appshunter.io/ios/app/intervals-pro-hiit-timer/id957586938)

Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.

**Highlights:** Highly customizable intervals (time/distance), Spoken interval names and prompts, Standalone Apple Watch workouts, Workout history with Apple Health, Home screen widgets for quick launch, Bluetooth heart rate monitor support, Siri Shortcuts integration

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $2.99 | per month |
| Yearly Membership | $19.99 | per year |
| Generous Tip | $0.99 | one-time |
| Awesome Tip | $1.99 | one-time |
| Massive Tip | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |
| Intervals Pro (Legacy) | $69.99 | one-time |
| Lifetime Access | $69.99 | one-time |

**What reviewers like**

- 👍 Customizable timers and intervals
- 🚀 Seamless Apple Watch integration
- 💪 Helps with fitness goals and training
- 🔍 Detailed workout tracking and analytics
- 🎨 Intuitive and user-friendly interface

**What reviewers complain about**

- 🐛 Occasional sync and connectivity issues
- 🔍 Lack of clear guidance and documentation
- 💰 Paid version required for full functionality

**Reported bugs**

- Workout data not syncing correctly
- App crashes or freezes on certain devices

**Requested features**

- More customization options for interval displays
- Ability to batch delete or manage workout history
- Integration with more third-party fitness apps


## Frequently asked questions

### Is Seconds Pro Interval Timer free?

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

### Is Intervals Pro free?

Intervals Pro is free to download, with in-app purchases available.

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

Seconds Pro Interval Timer and Intervals Pro are both rated 4.8 out of 5 on the App Store, from 12K and 14K ratings respectively.

### Do Seconds Pro Interval Timer or Intervals Pro have ads?

Neither Seconds Pro Interval Timer nor Intervals Pro shows ads.

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

Seconds Pro Interval Timer ships an update fortnightly, and Intervals Pro every 8 days. Most recently, Seconds Pro Interval Timer was updated on September 24, 2026 and Intervals Pro 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.*