# Interval timer · Hiit timer vs Fitness Secrets

The clearest difference is in-app purchases: Fitness Secrets at none against Interval timer · Hiit timer's 3. Fitness Secrets also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Interval timer · Hiit timer sells 3 in-app purchases, starting at $2.99 per 7 days. Fitness Secrets asks for nothing beyond the download.

Interval timer · Hiit timer ships an update weekly, Fitness Secrets fortnightly. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Interval timer · Hiit timer | Fitness Secrets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-timer/id6479285382/reviews)** | — |
| Number of ratings | **16** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 65 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [UnitVN.,JSC](https://appshunter.io/developer/1639973914) | [Codefish SAL](https://appshunter.io/developer/1106508165) |

## What reviewers say

### Interval timer · Hiit timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-timer/id6479285382)

This workout app offers customizable interval and rest times, with audio guidance that continues even when the app is in the background. Track your progress with detailed history and statistics, and easily repeat past workouts. It's designed to enhance your fitness routine without interrupting your music.

**Highlights:** Customizable interval and rest times, Audio guidance (voice or beeps), Background audio support, Workout history and statistics, Repeat previous workouts, Non-interference with music

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Monthly | $4.99 | per month |
| Lifetime package | $19.99 | one-time |


### Fitness Secrets

[App page](https://appshunter.io/ios/app/fitness-secrets/id6762191546)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval timer · Hiit timer free?

Interval timer · Hiit timer is free to download, with in-app purchases available.

### Is Fitness Secrets free?

Fitness Secrets is free to download, with no in-app purchases.

### Do Interval timer · Hiit timer or Fitness Secrets have ads?

Interval timer · Hiit timer shows ads; Fitness Secrets does not.

### Which is updated more often, Interval timer · Hiit timer or Fitness Secrets?

Interval timer · Hiit timer ships an update weekly, and Fitness Secrets fortnightly. Most recently, Interval timer · Hiit timer was updated on October 1, 2026 and Fitness Secrets on October 3, 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.*