# Interval Timer vs Fortify Training

The clearest difference is device support: Interval Timer at 3 against Fortify Training's —. Fortify Training's advantage is iOS requirement (15.0 vs 26.0). On price and in-app purchases there is nothing between them.

Both are free to download. Interval Timer sells 3 in-app purchases, starting at $2.99 per month and Fortify Training sells 1 in-app purchase, starting at $149.00 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Interval Timer | Fortify Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (534 ratings)](https://appshunter.io/ios/app/interval-timer-run-and-hiit/id956283665/reviews)** | — |
| Number of ratings | **534** | — |
| Positive reviews | 21.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 44 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | — |
| Age rating | 4+ | 17+ |
| Developer | [Roma Sosnovsky](https://appshunter.io/developer/956283664) | [Fortify Training LLC](https://appshunter.io/developer/1690829919) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-run-and-hiit/id956283665)

Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.

**Highlights:** Intuitive design, Customizable time intervals, Warm-up and cool-down timers, Voice and vibration notifications, Background music support, Foreground/background operation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Run Pro Monthly | $2.99 | per month |
| Interval Run Pro Annual | $19.99 | per year |
| Full Version | $2.99 | one-time |

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Customizable intervals
- 🚀 Straightforward app
- 👍 Works as advertised
- 👍 Great for getting back into running

**What reviewers complain about**

- 🔇 No audio prompts when screen is locked
- 🔋 High battery consumption
- 🔒 Limited free version
- 🐛 Inconsistent performance
- 🔇 Voice prompts not loud enough

**Reported bugs**

- Timer resets or freezes during workout
- Prompts not working when phone is locked or in pocket
- Unexpected interval changes or duration changes
- Compatibility issues with music playback

**Requested features**

- Option to pause/resume timer
- Larger time remaining display
- Apple Watch app
- Ability to play audio prompts even with screen off
- More interval options (run/walk/jog)


### Fortify Training

[App page](https://appshunter.io/ios/app/fortify-training/id6449845116)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Customized Nutrition | $149.00 | per month |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Fortify Training free?

Fortify Training is free to download, with in-app purchases available.

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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.*