# Plank Stopwatch Timer vs FFMI

The clearest difference is price: FFMI at Free against Plank Stopwatch Timer's $2.99. FFMI also leads on update cadence (every 3 months vs every 32 months). Plank Stopwatch Timer's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads there is nothing between them.

FFMI is free to download; Plank Stopwatch Timer costs $2.99 up front. FFMI sells 1 in-app purchase, starting at $0.99 per year. Plank Stopwatch Timer asks for nothing beyond the download.

Plank Stopwatch Timer ships an update every 32 months, FFMI every 3 months. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Plank Stopwatch Timer | FFMI |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/plank-stopwatch-timer/id1239667181/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 41 MB | 6 MB |
| Requires iOS | **14.7** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [RhythmicWorks](https://appshunter.io/developer/977154427) | [Almudena Blanco Morett](https://appshunter.io/developer/1616421372) |

## What reviewers say

### Plank Stopwatch Timer

[App page](https://appshunter.io/ios/app/plank-stopwatch-timer/id1239667181)

This app provides a specialized stopwatch and timer for plank exercises. It verbally announces elapsed time intervals or remaining time, allowing users to focus on their workout without constantly checking their screen.

**Highlights:** Voice announcements for elapsed time, Voice announcements for remaining time, Customizable time intervals, Focus on core muscles, Reduces time anxiety

**Features:** macOS Compatibility

**In-app purchases:** none


### FFMI

[App page](https://appshunter.io/ios/app/ffmi/id6673907322)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Year Access | $0.99 | per year |


## Frequently asked questions

### Is Plank Stopwatch Timer free?

Plank Stopwatch Timer costs $2.99, with no in-app purchases.

### Is FFMI free?

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

### Do Plank Stopwatch Timer or FFMI have ads?

Neither Plank Stopwatch Timer nor FFMI shows ads.

### Which is updated more often, Plank Stopwatch Timer or FFMI?

Plank Stopwatch Timer ships an update every 32 months, and FFMI every 3 months. Most recently, Plank Stopwatch Timer was updated on October 5, 2026 and FFMI 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.*