# Cogo Surveying > Comprehensive surveying toolkit for calculating coordinates, areas, and curves. (iPhone/iPad app by Thomas Blaxland.) - Source: https://appshunter.io/ios/app/cogo-surveying/id1139428658 (this page in markdown: same URL + `.md`) - Developer: [Thomas Blaxland](https://appshunter.io/developer/1139428657) - Category: Utilities, Education - Price: $5.99 - Rating: 3.11/5 from 9 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 91 MB - Languages: English - Released: 2016-09-02 - Data updated: 2026-08-28 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/cogo-surveying/id1139428658/reviews.md ## What is Cogo Surveying? Cogo Surveying is a surveying application that includes: Points Database---> Import a .cogo points file or add points manually. Points form the database can be used in all the other modules by calling the point number with a comma in front of the point number.(ie ",pt105" in the easting field). Export to .csv and send via email. Select your delimiter in the About Tab Plot Screen--> Display the points graphically from the point database. Zoom and pan the display. Area By Coordinates---> Calculate the area of a shape with up to 20 sides. Points are stored in a table that is editable. 2 & 3 Point Arcs---> Create arcs from 2 points and a radius or with 3 points. Then divide the curve in equal parts. Bearing Conversions----> Convert bearings from decimal to DMS and DMS to decimal. Survey---> Convert field data into XYZ coordinates. Input Hz bearing , vertical bearing and slope distance to convert to coordinates. Inverse---> Compute bearing and distance between coordinates. Inverse List---> Compute bearing and distance from a single fixed point to all points in the database. Traverse---> Calculate co-ordinates from bearing and distance of an occupied station. Bearings can be entered in DD.MMSS format or by using the separate fields. Pt To Line---> Calculate the offset and chainage of a point from a line. Or Calculate coordinates by inputting chainage and offset. Level Book---> A leveling sheet that allows the surveyor to input readings from a level run and compute elevations on the go. Export the data to a .csv file and send via Email. Never again get to the end of a loop without knowing if there has been a mistake made Intersection By Points---> Calculate the coordinates of a point by intersecting lines with known coordinates. This program can project a line through when lines don't intersect. Curve Calc---> Calculate the middle ordinate by knowing radius and chord length. Notes---> Change between a light and dark theme, also set the delimiter for import and export. FEEDBACK Please leave feed back about any bugs or requested improvements. All comments are welcome even if they are bad. I would rather hear "your app is a steaming pile of s#&@" than nothing at all ;). As well as any comments about how this app is being used and what I can do to make it better. DISCLAIMER By using this application the purchaser agrees that the author is not responsible for any financial loss that may occur as a result of using this application. While the application has automatic backup features the author is not responsible for any loss of data that may occur. ## Key features - Points Database Management - Area Calculation by Coordinates - 2 & 3 Point Arc Creation - Bearing Conversions - Field Data to XYZ Conversion - Inverse Calculations - Level Book for Elevation Computations ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/cogo-surveying/id1139428658/reviews.md ### 1/5 — Doesn’t work *2021-09-17* The app does work properly. It doesn’t do all the functions it promises. I wouldn’t recommend purchasing. ### 5/5 — Super cool app *2021-04-02* This is a very intuitive and thoughtful app that handles basic survey functions quite well. Much appreciated! ### 4/5 — So Much Potential, I like the Simplicity *2020-10-21* I read the poor reviews but found a Facebook page of Tom’s and realized that some folks were not following the Tom style approach to using his program. Obviously it’s cumbersome... but when followed you can get what you need for the most part. I plotted my 40 some points then did a screen capture, then did rough line work in ‘edit’ mode on ‘photos’ App Library... All on my iPad. Pretty cool. ### 1/5 — Too simple *2019-11-04* Don’t waste your money ### 1/5 — What a pain *2018-06-07* Does NOT recognize .csv. Don’t waste your time and effort. No option for PNEZD. And I tried realy hard to download a point file. ### 1/5 — Difficult to use, doesn't work as needed *2017-02-07* I was looking for an app where I could capture current position or input some specific points and traverse to them. This is not it. It only allows a couple decimal positions. I would recommend against purchasing this app for surveying. ### 1/5 — Do not buy *2017-01-28* Carry the numbers out farther. Make it easier to plot. Do not buy this whatever you do. ## Frequently asked questions about Cogo Surveying ### What is Cogo Surveying? Cogo Surveying is a paid application designed for land surveyors. It offers a comprehensive set of tools for managing points, calculating areas, creating arcs, converting bearings, and performing various other surveying computations directly on a mobile device. ### What devices does Cogo Surveying support? Cogo Surveying is available for iPhone and iPad devices, allowing users to perform surveying tasks on their preferred Apple mobile platforms. ### How much does Cogo Surveying cost? Cogo Surveying is a paid application priced at $5.99. This one-time purchase grants access to all its surveying features. ### What is the user rating for Cogo Surveying? Cogo Surveying currently has a rating of 3.1 stars based on 9 user reviews. Feedback is welcomed to help improve the application. ### Does Cogo Surveying have ads? No, Cogo Surveying does not contain advertisements. As a paid application, it provides an ad-free experience for its users. ### How often is Cogo Surveying updated? The latest version of Cogo Surveying is 6.4, which was released on December 6, 2016. Users are encouraged to provide feedback for future improvements and updates. ### What age rating is Cogo Surveying? Cogo Surveying has an age rating of 4+, making it suitable for a wide range of users, including younger individuals who may be learning about surveying concepts. ### Can I import and export data with Cogo Surveying? Yes, Cogo Surveying allows you to import .cogo points files and export data to .csv format. You can also select your preferred delimiter for import and export in the About Tab. ## Version history (last 5 releases) ### 6.4 — 2016-12-06 This app has been updated by Apple to display the Apple Watch app icon. *Added a new Inverse module. "Inverse List" can compute bearings and distances form a single fixed point to all the points in the database *Minor bugs fixed ### 6.3 — 2016-12-02 *Switch between light and dark themes, buttons located in the Notes Tab. *Inverse Tab now includes delta height and grade information for 3D Points. *New import panel in the database. Now shows a list of files that are available to import, and the ability to delete unwanted files. *Minor bug fixes. ### 6.2 — 2016-11-24 Fixed a bug for users in countries that use a comma for decimal indicators Added a delimiter box in the "Notes Tab" Now a user can select a custom delimiter for importing and exporting. ### 5.6 — 2016-08-31 V5.6 *Added RL switch to the plot screen. Points in the plot module can now have an RL or point number label. *Fixed minor bug in the curve module. Coming up in the next release * A brand new Traverse Adjust Module, this module will perform a bowditch adjustment on a closed loop traverse or a traverse between two known points. Work is underway and will be ready soon ### 5.5 — 2016-08-16 V5.5 *Added new pull down menus to use points from the database. Users can still recall points with a comma in front of the point number ie ,Pt100 in the easting field. *Enlarged the plot screen window for all devices. *Fixed minor bugs. ## Apps similar to Cogo Surveying | App | Rating | Price | Category | | --- | --- | --- | --- | | [Emlid Flow](https://appshunter.io/ios/app/emlid-flow/id1463967138) | 3.8 (32) | Free | Utilities | | [Civil Calculator & Converter](https://appshunter.io/ios/app/civil-calculator-and-converter/id1129841242) | 1.0 (1) | Free | Utilities | | [Land Survey Calculator](https://appshunter.io/ios/app/land-survey-calculator/id1120109578) | 1.0 (1) | Free | Utilities | | [PIX4Dcatch: 3D scanner](https://appshunter.io/ios/app/pix4dcatch-3d-scanner/id1511483044) | 4.7 (261) | Free | Utilities | | [Free42](https://appshunter.io/ios/app/free42/id337692629) | 4.8 (283) | Free | Utilities | | [Trimble-Connect](https://appshunter.io/ios/app/trimble-connect/id1076606537) | 3.4 (29) | Free | Utilities | --- *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 2026-08-28.*