Comparison

GeoID vs Schmidt Rebound Hammer

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

Schmidt Rebound Hammer

This app enhances the functionality of Schmidt rebound hammers for concrete and rock testing. It automates calculations, allows custom curves, tracks verification, and generates PDF reports. Collaborate and share data easily through cloud synchronization.

Highlights
  • Automated rebound number calculation
  • Custom curve support
  • Verification tracking
  • Logbook for reporting
  • PDF report generation
  • Cloud-based sharing and synchronization
Read full description

The technology of the legendary, original rebound hammers for concrete and rock strength and uniformity assessment, Original Schmidt, Silver Schmidt and Rock Schmidt, is now even more flexible, and interconnected. The Original Schmidt OS8000, the best in class Silver Schmidt OS8200 and the Rock Schmidt RS8000 rebound hammers can be used as stand-alone digital hammers, in combination with the Bluetooth printer or with this great app that delivers rich functionality to make concrete and rock testing a breeze: • Automated calculation of the rebound number according to major standards • Ability to add custom curves for higher precision • Verification tracking in line with requirements and standards • Logbook functionality for capturing additional information for reporting purposes • PDF report generation in just a few taps • Cloud-based sharing space for easier collaboration • Cloud synchronization with the screeningeagle.com workspace platform Schmidt rebound hammers by Proceq, the inventor. For faster and more precise concrete and rock testing. Download the free app now and explore the state of the art of concrete and rock testing with mechanical and optical technologies.

Screenshots

GeoID4 screens
Schmidt Rebound Hammer4 screens

Verdict

The call

The clearest difference is price: Schmidt Rebound Hammer at Free against GeoID's $5.99. Schmidt Rebound Hammer also leads on review sentiment (100% vs 65%). GeoID's advantage is iOS requirement (7.1 vs 15.0). On rating, ratings volume, update cadence and ads 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

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for GeoID against 5.0 for Schmidt Rebound Hammer. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews are what separate them: 65% of GeoID's written reviews are positive against 100% of Schmidt Rebound Hammer's.

UpkeepUpdate frequency

GeoID ships an update every 6 weeks, Schmidt Rebound Hammer every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
GeoID versus Schmidt Rebound Hammer: the parameters behind the verdict, then further details
ParameterGeoIDSchmidt Rebound Hammer
Price$5.99Free — better
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews65.0% of reviews100.0% of reviews — better
Number of ratings3 — better2
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.1 — better15.0
Further details — not scored
Size6 MB377 MB
Age rating4+4+
DeveloperSang Ho LeeScreening Eagle Technologies

Customer experience

GeoID

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews40 reviews
Positive65.0%
Neutral25.0%
Negative10.0%

Schmidt Rebound Hammer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GeoID

No in-app purchases

None

Schmidt Rebound Hammer

No in-app purchases

Questions

Is GeoID free?
GeoID costs $5.99, with no in-app purchases.
Is Schmidt Rebound Hammer free?
Schmidt Rebound Hammer is free to download, with no in-app purchases.
Which has better reviews, GeoID or Schmidt Rebound Hammer?
GeoID and Schmidt Rebound Hammer are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do GeoID or Schmidt Rebound Hammer have ads?
Neither GeoID nor Schmidt Rebound Hammer shows ads.
Which is updated more often, GeoID or Schmidt Rebound Hammer?
GeoID ships an update every 6 weeks, and Schmidt Rebound Hammer every 2 months. Most recently, GeoID was updated on October 26, 2026 and Schmidt Rebound Hammer on October 24, 2026.

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