# Touch GIS vs Diametree

The clearest difference is update cadence: Touch GIS at every 3 weeks against Diametree's every 10 months. Touch GIS also leads on iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Touch GIS sells 2 in-app purchases, starting at $29.99 per month and Diametree sells 1 in-app purchase, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Touch GIS ships an update every 3 weeks, Diametree every 10 months. The most recent releases landed on September 29, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Touch GIS | Diametree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (32 ratings)](https://appshunter.io/ios/app/touch-gis/id1469504766/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 10 months |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 177 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TouchGIS](https://appshunter.io/developer/1737526594) | [Panoimagen](https://appshunter.io/developer/1823882343) |

## What reviewers say

### Touch GIS

[App page](https://appshunter.io/ios/app/touch-gis/id1469504766)

This professional tool simplifies field data collection and mapping. It allows users to create and customize data forms, collect various data types offline, and export them to standard GIS formats. Professionals across diverse fields utilize it to enhance their fieldwork.

**Highlights:** Create Points, Lines, Polygons, Circles, Customizable attribute forms, Offline map tile saving, Export to industry standard formats, Attach photos to locations, Clinometer tool for orientation, Add custom base maps and overlays

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription (Monthly) | $29.99 | per month |
| Pro License (Annual) | $299.99 | per year |


### Diametree

[App page](https://appshunter.io/ios/app/diametree/id6748010621)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.99 | per month |


## Frequently asked questions

### Is Touch GIS free?

Touch GIS is free to download, with in-app purchases available.

### Is Diametree free?

Diametree is free to download, with in-app purchases available.

### Do Touch GIS or Diametree have ads?

Neither Touch GIS nor Diametree shows ads.

### Which is updated more often, Touch GIS or Diametree?

Touch GIS ships an update every 3 weeks, and Diametree every 10 months. Most recently, Touch GIS was updated on September 29, 2026 and Diametree on September 12, 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.*