Comparison

GeoID vs StraboField

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

StraboField

This mobile application helps geologists record field observations, capture data like photos and sketches, and create geologic maps. It supports various geological subdisciplines and allows for offline use with data syncing capabilities.

Highlights
  • Record field data with photos, sketches, and notes
  • Collect georeferenced orientation and spatial data
  • Use custom or built-in basemaps offline
  • Create multi-scale observations with nested Spots
  • Organize and back up data locally or to StraboSpot.org
  • Fully functional offline for remote fieldwork
Features
Read full description

StraboField is a powerful, all-in-one mobile app designed to streamline your geological fieldwork. Record observations, capture photos and sketches, collect orientation data, create geologic maps and stratigraphic sections — all from a single, map-centered platform. Easily collect spatially referenced data using point, line, or polygon-based Spots. Work across multiple scales using nested Spots and high-resolution image basemaps. Designed by geologists, for geologists, StraboField supports workflows across subdisciplines including structural geology, sedimentology, petrology, volcanology, and geomorphology. ** Key Features: ** * Capture field data with photos, sketches, and notes * Collect georeferenced orientation and spatial data * Use custom or built-in basemaps offline * Create multi-scale observations with nested Spots * Organize and back up data locally or to StraboSpot.org * StraboField is fully functional offline, making it ideal for remote fieldwork. Once online, your data can be synced to the StraboSpot digital data system at StraboSpot.org — an open- source platform supported by the National Science Foundation.

Screenshots

GeoID4 screens
StraboField4 screens

Verdict

The call

The clearest difference is price: StraboField at Free against GeoID's $5.99. StraboField also leads on update cadence (every 2 weeks vs every 6 weeks) and ratings volume (19 vs 3). GeoID's advantage is rating (5.0 vs 4.5) and review sentiment (67% vs 50%). On 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

StraboField 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

GeoID holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: StraboField has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of GeoID's written reviews are positive against 50% of StraboField's.

UpkeepUpdate frequency

GeoID ships an update every 6 weeks, StraboField every 2 weeks. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

Scorecard7 real differences · 3 level
GeoID versus StraboField: the parameters behind the verdict, then further details
ParameterGeoIDStraboField
Price$5.99Free — better
Rating5.0 (3 ratings) — better4.5 (19 ratings)
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings319 — better
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.1 — better15.6
Further details — not scored
Size6 MB87 MB
Age rating4+4+
DeveloperSang Ho LeeThe University of Kansas

Customer experience

GeoID

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive66.7%
Neutral28.6%
Negative4.8%

StraboField

All ratings19 ratings
Positive89.5%
Neutral0.0%
Negative10.5%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

GeoID

No in-app purchases

None

StraboField

No in-app purchases

Questions

Is GeoID free?
GeoID costs $5.99, with no in-app purchases.
Is StraboField free?
StraboField is free to download, with no in-app purchases.
Which has better reviews, GeoID or StraboField?
GeoID is rated higher. GeoID averages 5.0 out of 5 from 3 ratings, while StraboField averages 4.5 from 19 ratings.
Do GeoID or StraboField have ads?
Neither GeoID nor StraboField shows ads.
Which is updated more often, GeoID or StraboField?
GeoID ships an update every 6 weeks, and StraboField every 2 weeks. Most recently, GeoID was updated on September 9, 2026 and StraboField on September 18, 2026.

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