GeoID vs Benchmarks ∆
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Geological compass
- Stereographic projection
- Instability analysis
- Wireless data sharing
- Analysis reports
- Manual data input
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* 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.
Benchmarks ∆
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Easily locate current Survey Benchmarks and Benchmark data: Search by Address, PID, Lat/Lon, or CorsID NDE (NOAA's National Data Exchange) Datasheets and Beta Passive Map OPUS (NOAA's Online Positioning User Service) Datasheets, Shared Solution, and Beta Passive Map NCN (NOAA's CORS Network) Datasheets
Screenshots
Verdict
The clearest difference is price: GeoID at $5.99 against Benchmarks ∆'s $9.99. GeoID also leads on iOS requirement (7.1 vs 15.0). 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
GeoID costs $5.99 and Benchmarks ∆ $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GeoID ships an update every 6 weeks, Benchmarks ∆ monthly. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.
| Parameter | GeoID | Benchmarks ∆ |
|---|---|---|
| Price | $5.99 — better | $9.99 |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Sang Ho Lee | Matthew DiGirolamo |
In-app purchases
GeoID
No in-app purchases
Benchmarks ∆
No in-app purchases









