# Молния Z! vs GRC Rehab

The clearest difference is update cadence: Молния Z! at every 4 days against GRC Rehab's monthly. Молния Z! also leads on iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Молния Z! sells 9 in-app purchases, starting at $2.49 per month and GRC Rehab sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Молния Z! ships an update every 4 days, GRC Rehab monthly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Молния Z! | GRC Rehab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 28.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Subscription | — |
| Size | 20 MB | 28 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Mikhail Shakhidzhanov](https://appshunter.io/developer/1572180597) | [Unicorn Soft LLC](https://appshunter.io/developer/1790641992) |

## What reviewers say

### Молния Z!

[App page](https://appshunter.io/ios/app/z/id1572189091)

This app acts as a personal nutritionist, creating custom meal plans and tracking your progress. It offers a vast database of recipes and food items, allowing for personalized adjustments to meet your weight goals. Monitor your results and stay motivated on your health journey.

**Highlights:** Personalized meal plan creation, Customizable nutrition goals, Extensive recipe database, Food and water calorie calculator, Weight and body measurement tracking, Customizable food entries

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription for 1 month | $2.49 | per month |
| New subscription for 1 month | $2.99 | per month |
| Subscription for 1 month | $2.99 | per month |
| Subscription for 6 months | $11.49 | per 6 months |
| New subscription for 6 months | $13.49 | per 6 months |
| Subscription for 6 months | $13.49 | per 6 months |
| Subscription for a year | $20.49 | per year |
| Subscription for 1 year | $23.99 | per year |
| New annual subscription. | $24.49 | per year |


### GRC Rehab

[App page](https://appshunter.io/ios/app/grc-rehab/id6759595286)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Снятие напряжения в шее и плечах | $0.99 | one-time |
| Частичная стабилизация — Модуль 1 | $199.99 | one-time |
| Восстановление после пластики ПКС | $249.99 | one-time |
| Операция на коленном суставе | $249.99 | one-time |
| Восстановление суставного хряща | $249.99 | one-time |
| Восстановление после шва манжеты | $249.99 | one-time |
| Восстановление после Латарже | $249.99 | one-time |
| Восстановление после Банкарта | $249.99 | one-time |
| Восстановление после эндопротеза | $249.99 | one-time |
| Восстановление после шва мениска | $249.99 | one-time |


## Frequently asked questions

### Is Молния Z! free?

Молния Z! is free to download, with in-app purchases available.

### Is GRC Rehab free?

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

### Do Молния Z! or GRC Rehab have ads?

Neither Молния Z! nor GRC Rehab shows ads.

### Which is updated more often, Молния Z! or GRC Rehab?

Молния Z! ships an update every 4 days, and GRC Rehab monthly. Most recently, Молния Z! was updated on October 24, 2026 and GRC Rehab on October 28, 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.*