# Flux vs onlygains ai

The clearest difference is update cadence: Flux at weekly against onlygains ai's every 2 weeks. onlygains ai's advantage is iOS requirement (15.1 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Flux sells 4 in-app purchases, starting at $2.99 per month and onlygains ai sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Flux ships an update weekly, onlygains ai every 2 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flux | onlygains ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flux-workout-tracker/id6758521633/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 47 MB | 58 MB |
| Requires iOS | 26.2 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Digital Flux Ltd](https://appshunter.io/developer/1873322568) | [Chaitanya Giri Goswami](https://appshunter.io/developer/1895880239) |

## What reviewers say

### Flux

[App page](https://appshunter.io/ios/app/flux-workout-tracker/id6758521633)

This app helps you train smarter by generating personalized workouts based on your goals, available equipment, and time. It uniquely adapts to your progress over time, keeping all your data on your device for privacy. Track every set, rep, and weight with ease, and benefit from advanced features like progressive overload and fatigue-aware training.

**Highlights:** Personalized workout generation, Customizable routines and exercises, Real-time adaptive changes, Progressive overload and periodisation, Fatigue-aware training support, Apple Health integration, Data export

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flux Pro : 1 Month | $2.99 | per month |
| Flux Pro : 12 Month | $19.99 | per year |
| Flux Pro : Lifetime Pass - Founder | $49.99 | one-time |
| Flux Pro : Lifetime Pass | $59.99 | one-time |


### onlygains ai

[App page](https://appshunter.io/ios/app/onlygains-ai/id6764690590)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onlygains PRO | $12.99 | per month |
| OnlyGains PRO | $99.99 | per year |


## Frequently asked questions

### Is Flux free?

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

### Is onlygains ai free?

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

### Do Flux or onlygains ai have ads?

Neither Flux nor onlygains ai shows ads.

### Which is updated more often, Flux or onlygains ai?

Flux ships an update weekly, and onlygains ai every 2 weeks. Most recently, Flux was updated on October 21, 2026 and onlygains ai on October 25, 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.*