# Interval Timer vs Marisol Fit

The clearest difference is in-app purchases: Marisol Fit at none against Interval Timer's 3. Marisol Fit also leads on update cadence (every 5 days vs monthly) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Interval Timer sells 3 in-app purchases, starting at $4.99 per 7 days. Marisol Fit asks for nothing beyond the download.

Interval Timer ships an update monthly, Marisol Fit every 5 days. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Interval Timer | Marisol Fit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workouts/id6742372753/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 31 MB | 35 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lori Nguyen](https://appshunter.io/developer/1872689629) | [Appset, Inc.](https://appshunter.io/developer/1534333572) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workouts/id6742372753)

This advanced interval timer supports HIIT, Tabata, and circuit training with customizable work, rest, and cooldown periods. Stay focused with voice alerts, background operation, and music integration for any fitness routine.

**Highlights:** Customizable workouts, Pre-set & custom intervals, Voice & sound alerts, Music integration, Background operation, Dark & light mode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Timer (weekly) | $4.99 | per 7 days |
| Premium Timer (monthly) | $12.99 | per month |
| Premium Timer (yearly) | $39.99 | per year |


### Marisol Fit

[App page](https://appshunter.io/ios/app/marisol-fit/id6753897877)

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is Marisol Fit free?

Marisol Fit is free to download, with no in-app purchases.

### Do Interval Timer or Marisol Fit have ads?

Neither Interval Timer nor Marisol Fit shows ads.

### Which is updated more often, Interval Timer or Marisol Fit?

Interval Timer ships an update monthly, and Marisol Fit every 5 days. Most recently, Interval Timer was updated on October 18, 2026 and Marisol Fit on October 21, 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.*