# Workout Tracker vs Flex

The clearest difference is iOS requirement: Flex at 15.5 against Workout Tracker's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Workout Tracker sells 2 in-app purchases, starting at $6.99 per month and Flex sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Workout Tracker ships an update every 11 days, Flex every 10 days. The most recent releases landed on September 25, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Workout Tracker | Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/flex-workout-tracker-and-log/id6757288350/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 11 days | **Every 10 days** |
| Monetization | — | Freemium |
| Size | 79 MB | 107 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Can Ata](https://appshunter.io/developer/1461706769) | [CHRISTOPHER LAWRENCE BAGNELL](https://appshunter.io/developer/1865550731) |

## What reviewers say

### Workout Tracker

[App page](https://appshunter.io/ios/app/workout-tracker-fitdata/id6740706351)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitData Pro (Monthly) | $6.99 | per month |
| FitData Pro (Annual) | $69.99 | per year |


### Flex

[App page](https://appshunter.io/ios/app/flex-workout-tracker-and-log/id6757288350)

This app logs every workout set, tracks personal records, and generates personalized fitness plans. It also offers nutrition tracking, progress insights, and an AI coach for guidance. Stay motivated with streaks and badges, and share your progress with others.

**Highlights:** AI-generated workout plans, Set-by-set tracking with rest timer, Superset support, GPS cardio tracking, Nutrition logging with macro breakdowns, Personal record tracking, AI coach for fitness advice

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flex Pro Monthly | $4.99 | per month |
| Flex Pro Annual | $29.99 | per year |
| Flex Pro Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is Workout Tracker free?

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

### Is Flex free?

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

### Do Workout Tracker or Flex have ads?

Both Workout Tracker and Flex show ads.

### Which is updated more often, Workout Tracker or Flex?

Workout Tracker ships an update every 11 days, and Flex every 10 days. Most recently, Workout Tracker was updated on September 25, 2026 and Flex on September 30, 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.*