# iMapGJ vs MapFly

The clearest difference is update cadence: MapFly at every 2 months against iMapGJ'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.

iMapGJ ships an update every 3 months, MapFly every 2 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | iMapGJ | MapFly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/imapgj/id773519142/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 1 MB | 77 MB |
| Requires iOS | 15.2 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [City of Grand Junction](https://appshunter.io/developer/773519145) | [Arnaud Pfundstein](https://appshunter.io/developer/1791348455) |

## What reviewers say

### iMapGJ

[App page](https://appshunter.io/ios/app/imapgj/id773519142)

Access and view Geographic Information System (GIS) maps for the City of Grand Junction. This application is designed for mobile devices, providing map data on the go.

**Highlights:** View GIS maps, City of Grand Junction data, Mobile access, Supports iPhone, iPad, iPod

**Features:** macOS Compatibility

**In-app purchases:** none


### MapFly

[App page](https://appshunter.io/ios/app/mapfly/id6740737115)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iMapGJ free?

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

### Is MapFly free?

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

### Do iMapGJ or MapFly have ads?

Neither iMapGJ nor MapFly shows ads.

### Which is updated more often, iMapGJ or MapFly?

iMapGJ ships an update every 3 months, and MapFly every 2 months. Most recently, iMapGJ was updated on October 6, 2026 and MapFly on October 6, 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.*