# HydroApp v2 vs E

The clearest difference is update cadence: E at weekly against HydroApp v2's every 3 months. HydroApp v2's advantage is iOS requirement (13.0 vs 15.6). 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.

HydroApp v2 ships an update every 3 months, E weekly. The most recent releases landed on September 13, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | HydroApp v2 | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 17 MB | 65 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [TETE EN L'AIR](https://appshunter.io/developer/1446541556) | [A. F. GENESE](https://appshunter.io/developer/1819879677) |

## What reviewers say

### HydroApp v2

[App page](https://appshunter.io/ios/app/hydroapp-v2/id6462150657)

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-tonus/id6747120610)

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

**In-app purchases:** none


## Frequently asked questions

### Is HydroApp v2 free?

HydroApp v2 is free to download, with no in-app purchases.

### Is E free?

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

### Do HydroApp v2 or E have ads?

Neither HydroApp v2 nor E shows ads.

### Which is updated more often, HydroApp v2 or E?

HydroApp v2 ships an update every 3 months, and E weekly. Most recently, HydroApp v2 was updated on September 13, 2026 and E on September 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.*