# Hydra Dermacy vs My SATHYA

The clearest difference is ads: My SATHYA at none against Hydra Dermacy's shown. My SATHYA also leads on iOS requirement (12.2 vs 15). On price, update cadence, 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.

Hydra Dermacy ships an update every 4 months, My SATHYA every 3 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Hydra Dermacy | My SATHYA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 75 MB | 52 MB |
| Requires iOS | 15 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RODEO DIGITAL PRIVATE LIMITED](https://appshunter.io/developer/1473590726) | [SATHYA Technosoft India Pvt. Ltd.](https://appshunter.io/developer/1073088741) |

## What reviewers say

### Hydra Dermacy

[App page](https://appshunter.io/ios/app/hydra-dermacy/id6449861292)

**Features:** macOS Compatibility

**In-app purchases:** none


### My SATHYA

[App page](https://appshunter.io/ios/app/my-sathya/id6450176182)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hydra Dermacy free?

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

### Is My SATHYA free?

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

### Do Hydra Dermacy or My SATHYA have ads?

Hydra Dermacy shows ads; My SATHYA does not.

### Which is updated more often, Hydra Dermacy or My SATHYA?

Hydra Dermacy ships an update every 4 months, and My SATHYA every 3 months. Most recently, Hydra Dermacy was updated on November 3, 2026 and My SATHYA on November 7, 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.*