# Lya Dietitian vs Un

The clearest difference is in-app purchases: Lya Dietitian at none against Un's 1. Lya Dietitian also leads on device support (3 vs 1). Un's advantage is ads (none vs shown). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Un sells 1 one-off in-app purchase. Lya Dietitian asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Lya Dietitian | Un |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 44 MB | 50 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [IMPACT NUTRITION COMPANY LIMITED](https://appshunter.io/developer/1661289179) | [COMMERCE ON DEMAND NETWORK LTD](https://appshunter.io/developer/567469499) |

## What reviewers say

### Lya Dietitian

[App page](https://appshunter.io/ios/app/lya-dietitian/id1661289177)

**Features:** macOS Compatibility

**In-app purchases:** none


### Un

[App page](https://appshunter.io/ios/app/un-journal-stop-overthinking/id6785877239)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Un-Journal Premium Access | $14.99 | one-time |


## Frequently asked questions

### Is Lya Dietitian free?

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

### Is Un free?

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

### Do Lya Dietitian or Un have ads?

Lya Dietitian shows ads; Un does not.

### Which is updated more often, Lya Dietitian or Un?

Lya Dietitian ships an update every 3 weeks, and Un every 3 weeks. Most recently, Lya Dietitian was updated on October 25, 2026 and Un on October 31, 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.*