# GeoLog Field — Offline field data & mapping

> Offline field data & mapping (iPhone/iPad app by BERK AKDAG.)

- Source: https://appshunter.io/ios/app/geolog-field/id6785253813 (this page in markdown: same URL + `.md`)
- Developer: [BERK AKDAG](https://appshunter.io/developer/6782321967)
- Category: Productivity, Navigation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 14.0 · 40 MB
- Languages: American English
- Released: 2026-07-29
- Data updated: 2026-08-11
- User reviews in markdown: https://appshunter.io/ios/app/geolog-field/id6785253813/reviews.md

## What is GeoLog Field?

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| GeoLog Field Monthly | $4.99 | per month |
| GeoLog Field Yearly | $49.99 | per year |



## Version history (last 2 releases)

### 1.0.1 — 2026-08-02

• Removed the inactive edit icon from the coordinate panel for a clearer interface.
• Minor interface refinements and maintenance improvements.

### 1.0 — 2026-07-29

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*