geoTools vs StraboField
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
geoTools
This app provides tools for geological, geophysical, engineering, and geographic work. It helps estimate geophysical quantities like Bouguer anomaly and magnetic declination, and offers a quick coordinate converter. It's designed for professionals and enthusiasts interested in Earth Sciences.
- Estimate geophysical quantities
- Calculate Bouguer anomaly
- Estimate magnetic declination
- Quick coordinate converter
- Geographic to UTM conversion
- UTM to geographic conversion
- Uses IGRF geomagnetic model
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geoTools is a set of tools to use in geologic, geophysical, engineering and geographic work. It includes the estimation of important geophysical quantities, such as Bouguer anomaly, topography, magnetic declination, and so on, and a quick coordinate converter. The ideal companion for a geologist, a geophysicist, an engineer, a geographer, and to any person interested in the Earth Sciences. The easiest and more effective way to calculate the parameters associated to the Earth's gravity field and magnetic field. Convert coordinates from geographic to Universal Transverse Mercator and vice-versa with one touch, using different reference systems. Since 2018 the app uses the new IGRF geomagnetic model to estimate the magnetic parameters. All the tests we've made show very good results. PLEASE NOTICE: geoTools is free, no ads, no purchases, absolutely free! If you use it, please let a review to help us keep upgrading the app. It is simple, fast, and very important to us!
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.
- 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
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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
Verdict
The clearest difference is review sentiment: geoTools at 100% against StraboField's 50%. geoTools also leads on rating (5.0 vs 4.5) and iOS requirement (8.1 vs 15.6). StraboField's advantage is update cadence (every 2 weeks vs every 29 months) and ratings volume (19 vs 3). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
geoTools 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: 100% of geoTools's written reviews are positive against 50% of StraboField's.
geoTools ships an update every 29 months, StraboField every 2 weeks. The most recent releases landed on September 13, 2026 and September 18, 2026 respectively.
| Parameter | geoTools | StraboField |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.5 (19 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 3 | 19 — better |
| Update frequency | Every 29 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 17 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | Andre Molina | The University of Kansas |
Customer experience
geoTools
StraboField
In-app purchases
geoTools
No in-app purchases
StraboField
No in-app purchases







