GeoLog Field
Offline field data & mapping
Free · In‑App Purchases
GeoLog Field is an offline-first mobile workspace designed for geological field data collection, mapping and project organization.
Record observations, samples, drillholes, drawings, geological map features, sections, measurements and field tracks directly on your device. Keep project records structured during fieldwork and transfer them to office workflows using supported export formats.
FIELD DATA COLLECTION
• Create geological observations with notes, coordinates and photographs
• Record Rock, Soil, Stream and Other samples
• Manage drillhole collar, survey, lithology and assay data
• Add project-specific custom fields
MAP-BASED WORKFLOWS
• Place objects using your current GPS position or the map center
• Create points, lines, polygons, rectangles, circles and text
• Record geological units, structural lines, strike and dip data
• Measure distance, bearing, area and perimeter
• Create and review geological sections
COORDINATES
• WGS84 geographic coordinates
• UTM based on WGS84
• UTM based on ED50 for supported zones
• MGRS coordinate display
TRACK RECORDING
Record field routes and review track duration, distance and point count. With the required iOS permission, recording can continue while the device is locked.
IMPORT AND EXPORT
Exchange data using supported formats including GeoLog Field project packages, CSV, XLSX, GeoJSON, KML and GPX.
OFFLINE-FIRST
Project records are stored locally on the device and remain under your control. An internet connection may be required for online map content, but your saved project data remains available locally.
GeoLog Field focuses on the practical tasks geologists need in the field: structured data collection, clear project organization and reliable transfer to the next stage of the workflow.
Legal
Terms of Use (Apple Standard EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy:
https://geolog-field-website.web.app/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Removed the inactive edit icon from the coordinate panel for a clearer interface.
• Minor interface refinements and maintenance improvements.
The developer, BERK AKDAG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BERK AKDAG
- Size
- 41.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPad
Requires iPadOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- GeoLog Field Yearly $49.99
- GeoLog Field Monthly $4.99
- Copyright
- © 2026 Berk Akdag