# Radical Trainers vs Interval Timer

The clearest difference is in-app purchases: Radical Trainers at none against Interval Timer's 12. Radical Trainers also leads on ads (none vs shown). Interval Timer's advantage is update cadence (monthly vs every 3 months) and device support (4 vs 2). On price there is nothing between them.

Both are free to download. Interval Timer sells 12 in-app purchases, starting at $2.09 per month. Radical Trainers asks for nothing beyond the download.

Radical Trainers ships an update every 3 months, Interval Timer monthly. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Radical Trainers | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (388 ratings)](https://appshunter.io/ios/app/interval-timer-tabata-and-hiit/id6443672034/reviews)** |
| Number of ratings | — | **388** |
| Positive reviews | — | 96.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 61 MB | 112 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Radical Fitness](https://appshunter.io/developer/1157771840) | [SimpleInnovation LLC](https://appshunter.io/developer/1479770962) |

## What reviewers say

### Radical Trainers

[App page](https://appshunter.io/ios/app/radical-trainers/id1639124257)

**Features:** Vision Pro support

**In-app purchases:** none


### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-and-hiit/id6443672034)

This app provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

**Highlights:** Customizable workout setup, Progress tracking with calendar, Saveable custom presets, Color-coded notifications, Listen to music/audiobooks, Large, full-screen display, Widget for easy access

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timer PRO for 1 month: 30% OFF | $2.09 | per month |
| Timer PRO for 1 month: 25% OFF | $2.29 | per month |
| Interval Timer PRO for 1 month | $2.99 | per month |
| Interval Timer PRO for 1 month | $2.99 | per month |
| Interval Timer PRO - 30% OFF | $15.00 | per year |
| Interval Timer PRO - 25% OFF | $16.49 | per year |
| Interval Timer PRO for 1 year | $21.99 | per year |
| Tabata Timer PRO for 1 year | $21.99 | per year |
| Interval Timer - no Ads | $2.99 | one-time |
| HIIT Timer PRO Forever 30% OFF | $27.99 | one-time |
| HIIT Timer PRO Forever 25% OFF | $29.99 | one-time |
| Exercise Timer PRO Forever | $39.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Intuitive interface
- 🔋 Doesn't drain battery
- 💪 Effective for interval training
- 📆 Tracks workout history

**What reviewers complain about**

- 🔔 Frequent prompts to rate the app
- 🔒 Concerns about data privacy and permissions
- 🔧 Limited customization options

**Reported bugs**

- Occasional app crashes
- Compatibility issues with older devices

**Requested features**

- More pre-designed workout routines
- Ability to name and customize exercises
- Option to adjust countdown time between intervals


## Frequently asked questions

### Is Radical Trainers free?

Radical Trainers is free to download, with no in-app purchases.

### Is Interval Timer free?

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

### Do Radical Trainers or Interval Timer have ads?

Interval Timer shows ads; Radical Trainers does not.

### Which is updated more often, Radical Trainers or Interval Timer?

Radical Trainers ships an update every 3 months, and Interval Timer monthly. Most recently, Radical Trainers was updated on October 13, 2026 and Interval Timer on October 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.*