# J vs OnlyOne Coaching

The clearest difference is update cadence: J at every 5 weeks against OnlyOne Coaching's every 3 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.

J ships an update every 5 weeks, OnlyOne Coaching every 3 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | J | OnlyOne Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free |
| Size | 2 MB | 54 MB |
| Requires iOS | 16.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ProgExpert](https://appshunter.io/developer/1176118389) | [Hexfit](https://appshunter.io/developer/1131462836) |

## What reviewers say

### J

[App page](https://appshunter.io/ios/app/j-la-fit/id6450510813)

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

**In-app purchases:** none


### OnlyOne Coaching

[App page](https://appshunter.io/ios/app/onlyone-coaching/id6739758639)

This app allows clients of health and fitness professionals to access their records, track nutrition, and communicate with their coach. It centralizes all necessary information for achieving personal goals, including progress tracking and smart device synchronization.

**Highlights:** Nutrition plans, Food diary, Coach messaging, Questionnaires, File sharing, Smart device sync, Progress charts

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

**In-app purchases:** none


## Frequently asked questions

### Is J free?

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

### Is OnlyOne Coaching free?

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

### Do J or OnlyOne Coaching have ads?

Neither J nor OnlyOne Coaching shows ads.

### Which is updated more often, J or OnlyOne Coaching?

J ships an update every 5 weeks, and OnlyOne Coaching every 3 months. Most recently, J was updated on October 27, 2026 and OnlyOne Coaching on October 24, 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.*