# GeoCompass 2 — Geologist's compass

> Geological structure measurement tool with data recording and export. (iPhone/iPad app by HUNG HSUN LIN.)

- Source: https://appshunter.io/ios/app/geocompass-2/id975514904 (this page in markdown: same URL + `.md`)
- Developer: [HUNG HSUN LIN](https://appshunter.io/developer/482586427)
- Category: Productivity, Utilities
- Price: $2.99
- Rating: 3.17/5 from 12 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 5 MB
- Languages: English, French, German, Italian, Japanese, Chinese, Spanish, Chinese
- Released: 2015-05-19
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/geocompass-2/id975514904/reviews.md

## What is GeoCompass 2?

This app is primarily used to measure attitude of geological structures. It contains the following features: 

1) This app could record Strike, Dip, Dip Direction, Azimuth, Coordinates, Altitude and Location of the site. 

2) It could also measure line structures. 

3) Users could set direction reference to True North or Magnetic North. 

4) Display survey information in both map and table mode. 

5) Survey data could be exported as a csv format file for user's post usage. 

6) Users could add photos, videos, voice notes and text description to survey data.

## Key features

- Measure strike, dip, and dip direction
- Record azimuth, coordinates, and altitude
- Measure line structures
- Set direction reference to True or Magnetic North
- Display survey information in map and table modes
- Export survey data as CSV
- Add photos, videos, voice notes, and text descriptions

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/geocompass-2/id975514904/reviews.md

### 1/5 — 没有使用说明

*2023-04-27*

支持文档太差了！文档就两个图，多写几个字作者都不愿意。

### 3/5 — First time user (grumpy old Geologist)

*2020-06-15, version 3.5*

I like the idea of the “app” but I am having trouble displaying my location. I am in Southern California and my “attitude” location on the “map” showed I am off East Africa!?🤨 Please Help!🙏🏼

### 4/5 — Great app

*2016-10-17, version 3.4*

Please incorporate stereonets!!!

### 5/5 — Excellent app

*2016-06-30, version 3.4*

Well designed.  Makes iPhone a highly functional geologic instrument. Even better if elevation could be set to feet and if dip could be read aloud so you don't have to look at the screen when setting position.

### 2/5 — Instructions please!

*2016-03-14, version 3.4*

I figured out how to take a strike (using the top of my iPhone along the planar surface I'm measuring) however the dip I cannot figure out and the pictures in the info section are not helpful! Ive tried every edge of my phone with a known strike and dip surface and have yet to get a correct measurement of the dip with this app. 

Also, is data coverage required to use the app and store data? Or will it store with our cell service/wifi?? 

This seems like it would be a very useful app but it needs more support!! Please update!

**Developer response:** The usage of this app is really very simple. First, you can put your iPhone/iPad oriented like the diagrams shown in User's Guide, and click on Save to save the data. Then you got the record in the List tab and you can take photos, videos and voice notes to each record.

### 1/5 — Needs instructions

*2015-08-22, version 1.2*

User guide is worthless. Maybe it would help if it had some words. App seems like it would work fine if I could just figure out how to use it. I don't see a pointer and I don't know if the IPad is to be horizontal or vertical. I also don't know if I need an Internet connection.

**Developer response:** The usage of this app is really very simple. First, you can put your iPhone/iPad oriented like the diagrams shown in User's Guide, and click on Save to save the data. Then you got the record in the List tab and you can take photos, videos and voice notes to each record.

## Frequently asked questions about GeoCompass 2

### What geological data can GeoCompass 2 record?

GeoCompass 2 can record strike, dip, dip direction, azimuth, coordinates, altitude, and location of geological sites. It can also measure line structures.

### Can I use GeoCompass 2 offline?

The provided description does not specify offline functionality. However, as a measurement and data logging tool, it is likely designed for field use where internet connectivity may be limited.

### How can I export my survey data from GeoCompass 2?

Survey data collected with GeoCompass 2 can be exported as a CSV format file for post-usage analysis on other devices or software.

### Does GeoCompass 2 allow for adding notes to surveys?

Yes, users can enhance their survey data by adding photos, videos, voice notes, and text descriptions directly within the app.

### What is the price of GeoCompass 2?

GeoCompass 2 is a paid application priced at $2.99.

### On which devices can I use GeoCompass 2?

GeoCompass 2 is supported on iPhone, iPad, and iPod devices.

### How often is GeoCompass 2 updated?

The latest version of GeoCompass 2 is 3.5, with the last update occurring on November 30, 2019. This indicates a less frequent update cycle.

### What is the age rating for GeoCompass 2?

GeoCompass 2 has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 1 release)

### 3.5 — 2019-11-30

Support for iOS13

## Apps similar to GeoCompass 2

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [WorkOnGrid](https://appshunter.io/ios/app/workongrid/id1444515515) | — | Free | Productivity |
| [Ferreteria](https://appshunter.io/ios/app/ferreteria/id1416420307) | 5.0 (1) | Free | Productivity |
| [生日提醒-农历公历双历生日倒计时](https://appshunter.io/ios/app/id1061091881) | 4.9 (178) | Free | Productivity |
| [Wildnote](https://appshunter.io/ios/app/wildnote/id1077219625) | 4.0 (3) | Free | Productivity |
| [LandPKS](https://appshunter.io/ios/app/landpks/id1084892005) | 4.8 (5) | Free | Productivity |
| [Superchat - Delightful AI Chat](https://appshunter.io/ios/app/superchat-delightful-ai-chat/id6446369198) | 4.3 (10) | Free | Productivity |

## More apps by HUNG HSUN LIN

- [Taiwan Datum](https://appshunter.io/ios/app/taiwan-datum/id620301625)
- [WGS84](https://appshunter.io/ios/app/wgs84/id657324657)
- [Gauss Meter](https://appshunter.io/ios/app/gauss-meter/id698042661)
- [Noise Meter +](https://appshunter.io/ios/app/noise-meter-plus/id789623736)
- [Driving Rec](https://appshunter.io/ios/app/driving-rec/id818970648)
- [Barometer Pro](https://appshunter.io/ios/app/barometer-pro/id930452531)

All apps by HUNG HSUN LIN: https://appshunter.io/developer/482586427

---

*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 2026-06-10.*