# Flex vs Impact Gym

The clearest difference is update cadence: Flex at fortnightly against Impact Gym's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flex ships an update fortnightly, Impact Gym every 7 months. The most recent releases landed on September 11, 2026 and March 26, 2026 respectively.

## The numbers

| Metric | Flex | Impact Gym |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/flex-gym-workout-tracker/id986808754/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | Free | — |
| Size | 5 MB | 30 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dino Constantinou](https://appshunter.io/developer/848408117) | [Ashbourne](https://appshunter.io/developer/1130933933) |

## What reviewers say

### Flex

[App page](https://appshunter.io/ios/app/flex-gym-workout-tracker/id986808754)

This app helps strength training enthusiasts track their workouts. Create custom plans, log reps and weight, and monitor progress with a dashboard and rest timers. It syncs with Apple Health.

**Highlights:** Workout plan creation, Rep and weight tracking, Rest timers, Exercise progress monitoring, Apple Health sync, Customizable units (KG/LB)

**Features:** macOS Compatibility

**In-app purchases:** none


### Impact Gym

[App page](https://appshunter.io/ios/app/impact-gym/id6739727632)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flex free?

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

### Is Impact Gym free?

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

### Do Flex or Impact Gym have ads?

Neither Flex nor Impact Gym shows ads.

### Which is updated more often, Flex or Impact Gym?

Flex ships an update fortnightly, and Impact Gym every 7 months. Most recently, Flex was updated on September 11, 2026 and Impact Gym on March 26, 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.*