# Distance Sampler — Feral animal survey tool

> Feral animal survey tool (iPhone/iPad app by Stewart Macdonald.)

- Source: https://appshunter.io/ios/app/distance-sampler/id947811415 (this page in markdown: same URL + `.md`)
- Developer: [Stewart Macdonald](https://appshunter.io/developer/539447287)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 4 MB
- Languages: American English
- Released: 2015-02-06
- Data updated: 2025-06-23
- User reviews in markdown: https://appshunter.io/ios/app/distance-sampler/id947811415/reviews.md

## What is Distance Sampler?

An iPad-only (including iPad mini) app used for conducting helicopter-based distance sampling surveys, primarily for pigs, cattle and horses.

While conducting a survey, select the type of animal observed, the number of animals, and the approximate perpendicular distance from the transect line. You can then view the records in a spreadsheet or a GIS application (e.g., Google Earth) directly on the app (if you have the appropriate apps installed). You can also email the records as a CSV file to yourself or download via iTunes file sharing, and then import them into another application to perform the distance sampling analysis.

This application was designed and developed by CSIRO in collaboration with Ug Media, Balkanu and Jim Mitchell (Feral Fix). Funding for this application was provided by CSIRO, Balkanu and an Australian Government Biodiversity Fund grant.

Note: Continued use of GPS running in the background can dramatically decrease battery life.


## Version history (last 3 releases)

### 1.5.1 — 2021-04-28

Adds fields for extra transect metadata.
Fixes some display issues with recent versions of iOS.
Adds some new animal icons.

### 1.5 — 2016-11-03

Adds fields for extra transect metadata.
Fixes some display issues with recent versions of iOS.
Adds some new animal icons.

### 1.4.1 — 2015-02-06

No release notes.

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## More apps by Stewart Macdonald

- [Snakes of Australia](https://appshunter.io/ios/app/snakes-of-australia/id562703346)
- [Frogs of Australia](https://appshunter.io/ios/app/frogs-of-australia/id680061595)
- [Reptiles and Amphibians of Sweden](https://appshunter.io/ios/app/reptiles-and-amphibians-of-sweden/id777495883)

All apps by Stewart Macdonald: https://appshunter.io/developer/539447287

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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 2025-06-23.*