# ISSMGE vs GMDE Lite

ISSMGE and GMDE Lite 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.

ISSMGE ships an update monthly, GMDE Lite every 3 weeks. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | ISSMGE | GMDE Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gmde-lite/id1557325241/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 13 MB | 48 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ARGO-E GROUP I.K.E.](https://appshunter.io/developer/1263435304) | [Richard Allmendinger](https://appshunter.io/developer/1194772609) |

## What reviewers say

### ISSMGE

[App page](https://appshunter.io/ios/app/issmge/id1263435305)

**Features:** macOS Compatibility

**In-app purchases:** none


### GMDE Lite

[App page](https://appshunter.io/ios/app/gmde-lite/id1557325241)

This app allows users to record and visualize geological data, including points of interest, orientations, and contacts, on a map. It supports data exchange with other desktop and mobile applications and offers advanced tools for geological analysis and sketching.

**Highlights:** Record points of interest with photos and descriptions, Annotate photos and create digital sketches, Enter geological orientations via multiple methods, Import/export data from other geological software, Edit geological contacts by manipulating vertices, Use device as a rangefinder for plotting points, Display orientation data on stereographic projections

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ISSMGE free?

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

### Is GMDE Lite free?

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

### Do ISSMGE or GMDE Lite have ads?

Neither ISSMGE nor GMDE Lite shows ads.

### Which is updated more often, ISSMGE or GMDE Lite?

ISSMGE ships an update monthly, and GMDE Lite every 3 weeks. Most recently, ISSMGE was updated on November 2, 2026 and GMDE Lite on November 7, 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.*