# Compass Regatta vs Hydro Solar HP

The clearest difference is iOS requirement: Compass Regatta at 7.0 against Hydro Solar HP's 12.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Compass Regatta | Hydro Solar HP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 25 MB | 29 MB |
| Requires iOS | **7.0** | 12.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NETIGEN Kluzowicz sp. j.](https://appshunter.io/developer/892331873) | [Aqua Solanor Inc](https://appshunter.io/developer/1631684916) |

## What reviewers say

### Compass Regatta

[App page](https://appshunter.io/ios/app/compass-regatta/id1156789057)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hydro Solar HP

[App page](https://appshunter.io/ios/app/hydro-solar-hp/id1631684914)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Compass Regatta free?

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

### Is Hydro Solar HP free?

Hydro Solar HP is free to download, with no in-app purchases.

### Do Compass Regatta or Hydro Solar HP have ads?

Neither Compass Regatta nor Hydro Solar HP shows ads.

### Which is updated more often, Compass Regatta or Hydro Solar HP?

Compass Regatta ships an update every 2 months, and Hydro Solar HP every 2 months. Most recently, Compass Regatta was updated on November 6, 2026 and Hydro Solar HP 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.*