Comparison

GeoID vs Outcropedia

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GeoID

A professional tool for measuring and analyzing geological structures. It features a geological compass, stereographic projection, and instability analysis with wireless data sharing capabilities.

Highlights
  • Geological compass
  • Stereographic projection
  • Instability analysis
  • Wireless data sharing
  • Analysis reports
  • Manual data input
Features
Read full description

* Note : This app uses built-in magnetometer, so iPod Touch does not provides direction of structure/device. GeoID is a professional tool for measuring and analyzing geological structures. This application includes geological compass, stereographic projection, instability analysis and wireless data sharing. • Features - The clinometer works with all attitude of the device and enables user to measure any structure - A stability indicator in the clinometer maximizes its accuracy - Provides many options including notation type, measurement interval, avarage calculation, projection type, etc. - Can input data manually using several input methods - Immediate projection and analysis of selected project - Provides stereonet-based slope stability analysis - Supports zooming while plotting/analyzing - Wireless data transferring via Bluetooth and E-mail - Generates analysis reports with stereonet images and sends them by e-mail - Supports all iOS devices Developed by Engineering Geology & GIS Lab., Dept. of Energy Systems Engineering, Seoul National University, South Korea. Prof. Hyeong Dong Park wishes to express thanks to Prof. Edward Keller and other faculty members of the Earth Sciences Department of University of California Santa Barbara for the useful suggestions and discussions on the improvement of GeoID during Prof. Park's academic visit from 2011-2013.

About

Outcropedia

Features
Read full description

OutcropediApp is an initiative run by TecTask, the Commission on Tectonics and Structural Geology of the IUGS (International Union of Geological Sciences). It aims to valorize geological field data and to freely share the best outcrop photos among Geology professionals and lovers. OutcropediApp makes it very easy to share photos of geological outcrops and to create geo-tours. This app will allow you to: - share photos of the outcrops directly from the field, using your smartphone - easily find information on the best outcrops worldwide or those close to your position - have a freely available database of geological structures, also for teaching and informative purposes A final remark! Please, do not destroy the outcrops, take a photo and use your hammer only for scale!

Screenshots

GeoID4 screens
Outcropedia4 screens

Verdict

The call

The clearest difference is price: Outcropedia at Free against GeoID's $5.99. GeoID's advantage is iOS requirement (7.1 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Outcropedia is free to download; GeoID costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GeoID ships an update every 6 weeks, Outcropedia every 2 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
GeoID versus Outcropedia: the parameters behind the verdict, then further details
ParameterGeoIDOutcropedia
Price$5.99Free — better
Rating5.0 (3 ratings) — better—
Positive reviews65.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.1 — better13.0
Further details — not scored
Size6 MB78 MB
Age rating4+4+
DeveloperSang Ho LeeWEBMAPP SRL

In-app purchases

None

GeoID

No in-app purchases

None

Outcropedia

No in-app purchases

Questions

Is GeoID free?
GeoID costs $5.99, with no in-app purchases.
Is Outcropedia free?
Outcropedia is free to download, with no in-app purchases.
Do GeoID or Outcropedia have ads?
Neither GeoID nor Outcropedia shows ads.
Which is updated more often, GeoID or Outcropedia?
GeoID ships an update every 6 weeks, and Outcropedia every 2 months. Most recently, GeoID was updated on October 24, 2026 and Outcropedia on October 16, 2026.

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