# SolarGPS2 vs HR

The clearest difference is update cadence: HR at every 9 days against SolarGPS2's monthly. SolarGPS2's advantage is iOS requirement (12.0 vs 15.0). 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.

SolarGPS2 ships an update monthly, HR every 9 days. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | SolarGPS2 | HR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Size | 21 MB | 55 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [维刚 王](https://appshunter.io/developer/913823126) | [Polygram Solution Co., Ltd.](https://appshunter.io/developer/1732614931) |

## What reviewers say

### SolarGPS2

[App page](https://appshunter.io/ios/app/solargps2/id1495788735)

**Features:** macOS Compatibility

**In-app purchases:** none


### HR

[App page](https://appshunter.io/ios/app/hr-mobile-app/id6784125787)

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

**In-app purchases:** none


## Frequently asked questions

### Is SolarGPS2 free?

SolarGPS2 is free to download, with no in-app purchases.

### Is HR free?

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

### Do SolarGPS2 or HR have ads?

Neither SolarGPS2 nor HR shows ads.

### Which is updated more often, SolarGPS2 or HR?

SolarGPS2 ships an update monthly, and HR every 9 days. Most recently, SolarGPS2 was updated on September 16, 2026 and HR on September 21, 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.*