# pHformula vs Cathrine Yoga

The clearest difference is in-app purchases: pHformula at none against Cathrine Yoga's 3. pHformula also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cathrine Yoga sells 3 in-app purchases, starting at $17.99 per month. pHformula asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | pHformula | Cathrine Yoga |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/phformula/id1533460089/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 20 MB | 78 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beauty Akademiet ApS](https://appshunter.io/developer/1533460091) | [Cathrine Yoga ApS](https://appshunter.io/developer/1543915626) |

## What reviewers say

### pHformula

[App page](https://appshunter.io/ios/app/phformula/id1533460089)

This app rewards loyal customers of a skincare clinic by allowing them to earn and redeem points on products. It bridges the gap between clients and their preferred clinic for exclusive benefits.

**Highlights:** Earn loyalty points, Redeem points for products, Connect with skincare clinic, Exclusive customer benefits

**Features:** macOS Compatibility

**In-app purchases:** none


### Cathrine Yoga

[App page](https://appshunter.io/ios/app/cathrine-yoga/id1543915504)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Månedligt | $17.99 | per month |
| Halvårligt | $69.99 | per 6 months |
| Årligt | $119.99 | per year |


## Frequently asked questions

### Is pHformula free?

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

### Is Cathrine Yoga free?

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

### Do pHformula or Cathrine Yoga have ads?

Neither pHformula nor Cathrine Yoga shows ads.

### Which is updated more often, pHformula or Cathrine Yoga?

pHformula ships an update monthly, and Cathrine Yoga monthly. Most recently, pHformula was updated on October 11, 2026 and Cathrine Yoga on September 19, 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.*