# TerraExplorer vs Alteia Infield

The clearest difference is update cadence: Alteia Infield at every 2 months against TerraExplorer's every 6 months. TerraExplorer's advantage is iOS requirement (9.0 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.

TerraExplorer ships an update every 6 months, Alteia Infield every 2 months. Both last shipped on October 8, 2026.

## The numbers

| Metric | TerraExplorer | Alteia Infield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/terraexplorer/id722233115/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 33 MB | 27 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Skyline Software Systems, Inc.](https://appshunter.io/developer/722233118) | [Alteia](https://appshunter.io/developer/1574478404) |

## What reviewers say

### TerraExplorer

[App page](https://appshunter.io/ios/app/terraexplorer/id722233115)

This application allows users to view and analyze high-resolution 3D spatial data on mobile devices. It supports various spatial databases, including 3D city layers and feature layers, and offers tools for querying and presenting data. Seamless integration with other products and online data sources is also provided.

**Highlights:** View high-resolution 3D GIS content, Display spatial databases and feature layers, Query and analyze spatial data, Integrate with Skyline product line, Access online data from SkylineGlobe server, Load online TerraExplorer projects

**Features:** macOS Compatibility

**In-app purchases:** none


### Alteia Infield

[App page](https://appshunter.io/ios/app/alteia-infield/id1574478402)

**In-app purchases:** none


## Frequently asked questions

### Is TerraExplorer free?

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

### Is Alteia Infield free?

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

### Do TerraExplorer or Alteia Infield have ads?

Neither TerraExplorer nor Alteia Infield shows ads.

### Which is updated more often, TerraExplorer or Alteia Infield?

TerraExplorer ships an update every 6 months, and Alteia Infield every 2 months. Most recently, TerraExplorer was updated on October 8, 2026 and Alteia Infield on October 8, 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.*