# Workout Time Keeper vs MF

The clearest difference is in-app purchases: MF at none against Workout Time Keeper's 3. MF also leads on iOS requirement (13.4 vs 15.0). Workout Time Keeper's advantage is device support. On price there is nothing between them.

Both are free to download. Workout Time Keeper sells 3 in-app purchases, starting at $0.99 per month. MF asks for nothing beyond the download.

## The numbers

| Metric | Workout Time Keeper | MF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/workout-time-keeper/id1594299697/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Monetization | Free | — |
| Size | 38 MB | 28 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [Sergii Chevkota](https://appshunter.io/developer/1594299699) | [Fitbase](https://appshunter.io/developer/1530906929) |

## What reviewers say

### Workout Time Keeper

[App page](https://appshunter.io/ios/app/workout-time-keeper/id1594299697)

This app allows you to create custom workout intervals, including warm-ups, work periods, and rest times. It tracks your heart rate and calories burned, using vibration to signal activity changes. All workouts sync with HealthKit for comprehensive fitness tracking.

**Highlights:** Customizable workout intervals, Heart rate monitoring, Calorie tracking, Vibration and sound alerts, HealthKit synchronization, Music control

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $9.99 | per year |
| Pro Tire | $5.99 | one-time |


### MF

[App page](https://appshunter.io/ios/app/mf/id6746409764)

**In-app purchases:** none


## Frequently asked questions

### Is Workout Time Keeper free?

Workout Time Keeper is free to download, with in-app purchases available.

### Is MF free?

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

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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.*