# Intervals vs Heidi Workout Timer

The clearest difference is in-app purchases: Heidi Workout Timer at none against Intervals's 4. Heidi Workout Timer also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (12.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Intervals sells 4 one-off in-app purchases. Heidi Workout Timer asks for nothing beyond the download.

Intervals ships an update every 3 months, Heidi Workout Timer fortnightly. The most recent releases landed on July 18, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Intervals | Heidi Workout Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 4 MB | 12 MB |
| Requires iOS | 26.0 | **12.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RGB Consulting Limited](https://appshunter.io/developer/368207904) | [HIJO DIGITAL LTD](https://appshunter.io/developer/1691527420) |

## What reviewers say

### Intervals

[App page](https://appshunter.io/ios/app/intervals/id521504000)

This app provides a straightforward interval timer for structured training sessions like HIIT, boxing, or circuit training. It offers customizable timer profiles, clear visual and audio cues for transitions, and tracks your workout statistics. It can also function as a Pomodoro timer for focused work blocks.

**Highlights:** Customizable timer profiles, Clear visual countdown ring, Audio and haptic alerts, Session statistics tracking, Screen stays awake during sessions, Pomodoro timer functionality

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $3.99 | one-time |


### Heidi Workout Timer

[App page](https://appshunter.io/ios/app/heidi-workout-timer/id6450010213)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Intervals free?

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

### Is Heidi Workout Timer free?

Heidi Workout Timer is free to download, with no in-app purchases.

### Do Intervals or Heidi Workout Timer have ads?

Neither Intervals nor Heidi Workout Timer shows ads.

### Which is updated more often, Intervals or Heidi Workout Timer?

Intervals ships an update every 3 months, and Heidi Workout Timer fortnightly. Most recently, Intervals was updated on July 18, 2026 and Heidi Workout Timer on September 25, 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.*