# iMAR GPS vs Sky GPS

The clearest difference is update cadence: iMAR GPS at every 3 weeks against Sky GPS's every 6 weeks. 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.

iMAR GPS ships an update every 3 weeks, Sky GPS every 6 weeks. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | iMAR GPS | Sky GPS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 111 MB | 131 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Viet Hung Le](https://appshunter.io/developer/1473096731) | [Anh Nguyen Hong](https://appshunter.io/developer/1683083959) |

## What reviewers say

### iMAR GPS

[App page](https://appshunter.io/ios/app/imar-gps/id1549439868)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sky GPS

[App page](https://appshunter.io/ios/app/sky-gps/id6447949475)

**In-app purchases:** none


## Frequently asked questions

### Is iMAR GPS free?

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

### Is Sky GPS free?

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

### Do iMAR GPS or Sky GPS have ads?

Neither iMAR GPS nor Sky GPS shows ads.

### Which is updated more often, iMAR GPS or Sky GPS?

iMAR GPS ships an update every 3 weeks, and Sky GPS every 6 weeks. Most recently, iMAR GPS was updated on October 29, 2026 and Sky GPS on October 27, 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.*