# topoXpress vs RTKapp

topoXpress and RTKapp are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

topoXpress ships an update every 5 weeks, RTKapp every 3 weeks. The most recent releases landed on June 4, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | topoXpress | RTKapp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/topoxpress/id1500467308/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 27 MB | 93 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TopoLynx GIS & Mapping Ltd](https://appshunter.io/developer/1500467307) | [Juan Carlos Lopez Calvo](https://appshunter.io/developer/1876960144) |

## What reviewers say

### topoXpress

[App page](https://appshunter.io/ios/app/topoxpress/id1500467308)

This application provides robust GIS and surveying tools for field data collection and analysis. It supports both online and offline operations with a wide range of spatial data formats and powerful visualization functions. Designed for professionals, it facilitates collaborative mapping and extensive GNSS receiver integration.

**Highlights:** Multiplatform GIS and surveying functionality, Handles large spatial datasets (raster/vector), Online and offline data operation, Powerful GIS visualization functions, Productive data collection tools, Collaborative mapping via cloud service, Extensive GNSS receiver support

**Features:** macOS Compatibility

**In-app purchases:** none


### RTKapp

[App page](https://appshunter.io/ios/app/rtkapp/id6759115701)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is topoXpress free?

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

### Is RTKapp free?

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

### Do topoXpress or RTKapp have ads?

Neither topoXpress nor RTKapp shows ads.

### Which is updated more often, topoXpress or RTKapp?

topoXpress ships an update every 5 weeks, and RTKapp every 3 weeks. Most recently, topoXpress was updated on June 4, 2026 and RTKapp 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.*