# SolarGPS2 vs E

The clearest difference is update cadence: SolarGPS2 at monthly against E's every 3 months. 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, E every 3 months. The most recent releases landed on September 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SolarGPS2 | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 21 MB | 48 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [维刚 王](https://appshunter.io/developer/913823126) | [Ministry of Land Management, Urban Planning and Construction](https://appshunter.io/developer/1743523217) |

## What reviewers say

### SolarGPS2

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

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-admin/id6499470951)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SolarGPS2 free?

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

### Is E free?

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

### Do SolarGPS2 or E have ads?

Neither SolarGPS2 nor E shows ads.

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

SolarGPS2 ships an update monthly, and E every 3 months. Most recently, SolarGPS2 was updated on September 16, 2026 and E on September 13, 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.*