MyUSNG vs StraboField
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyUSNG
This app reports your device's location in US National Grid format. Easily copy your USNG coordinates to your clipboard with a single tap, or email them with a tap and hold. It also features a map to capture and view USNG locations.
- USNG location reporting
- One-tap copy to clipboard
- Tap-and-hold email function
- Map view for location capture
- USNG information resource
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MyUSNG reports the location of your device in US National Grid format (USNG). With a single tap on the screen, you will copy the USNG location into your clipboard. With a tap and hold, you can easily e-mail your USNG location. MyUSNG also includes a simple map that will let you capture the USNG of locations away from you, or center the map The United States National Grid (USNG) is a nationally consistent language of location in a user friendly format. USNG is commonly used during Search and Rescue operations in the United States. For more information about USNG visit usngcenter.org. MyUSNG is an Esri Labs project and not an official Esri product. MyUSNG is provided on an as-is-basis and you assume all risks associated with using this app.
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
MyUSNG and StraboField both sit at 4.4 stars, but that hides the real split: 100% of MyUSNG's written reviews are positive against 50% of StraboField's. MyUSNG also leads on iOS requirement (11.0 vs 15.6). StraboField's advantage is update cadence (every 2 weeks vs every 10 months). On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for MyUSNG against 4.5 for StraboField. Both are backed by a comparable volume of ratings — 9 and 19 respectively. Written reviews are what separate them: 100% of MyUSNG's written reviews are positive against 50% of StraboField's.
MyUSNG ships an update every 10 months, StraboField every 2 weeks. The most recent releases landed on June 1, 2026 and September 18, 2026 respectively.
| Parameter | MyUSNG | StraboField |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (9 ratings) | 4.5 (19 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 9 | 19 — better |
| Update frequency | Every 10 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 30 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | Esri Online LLC | The University of Kansas |
Customer experience
MyUSNG
StraboField
In-app purchases
MyUSNG
No in-app purchases
StraboField
No in-app purchases









