TransektCount for Android

TransektCount

Wilhelm Stein

version 5.0.7

A butterfly monitoring app for transect counters.

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Antivirus & safety scan results

Scan Date: Apr 30, 2026 Software Version: 5.0.7
Status: ✅ Trusted & Safe to install This app is signed by Wilhelm Stein with trusted and verified digital signature and it will updated existing TransektCount installations Certificate fingerprint: 110b3739ff8278e4cf9e4ccb925538c49b0dd393 Issuer: C:UK, CN:FDroid, L:ORG, O:fdroid.org, ST:ORG, OU:FDroid How we verify APK files security
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TransektCount Encyclopedia app for Android description

TransektCount serves transect counters on their inspection walks. It supports species-specific counting of butterflies per transect section according to the European Butterfly Monitoring Scheme method.

Features

  • Data recording is organized according to a single transect inspection with a database instance per inspection.
  • Databases can be individually created and adapted within the app regarding meta data, transect sections and expected butterfly species.
  • You may use an individual species list per transect section.
  • It contains a prepared basic database with most of the expected species as a starting point.
  • Editor for the transect sections to setup or adapt its species.
  • Add new species to the list by scroll-down-selection from a comprehensive internal species list.
  • Editor for meta data to prepare an inspection.
  • Editor for species remark or bulk count entry.
  • Counting page with scroll menu to select species.
  • Count input per internal/external counting area and here each with separate counters for ♂ or ♀, ♂, ♀, pupa, larva or egg.
  • Results are prepared for easy readout to transfer them to science4you entry masks.
  • Results are shown with meta data, remarks, totals and species results per transect section.
  • Results may also be exported in SQLite- or CSV-format and transferred to a PC for your own processing, e.g. by importing a csv-file into a spreadsheet like MS Excel.
  • Help contains a detailed userguide.

Prerequisites

The app demands for

  • storage access permit which is needed for im-/exporting the counting data,
  • the permit to write settings for setting the screen brightness,
  • the permit to prevent the phone from sleeping (to control the counting screen when used under Android 5.0.1 or newer).

The smartphone screen should have a minimum resolution of 1920 x 1024 pixels. The app is usable with Android version 4.4 (KitKat) or newer.

Documentation is provided under https://github.com/wistein/TransektCount/tree/master/docs.

TransektCount is one of two apps for European butterfly monitoring. The 2nd app, TourCount, supports species-specific and individually GPS-localized counting of butterflies on any tour in nature.

Both apps use the coding scheme of Karsholt/Razowski for European butterflies and thus contain only European butterfly pictures.

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Specifications


Old Versions

TransektCount icon

5.0.6 APK

April 10, 2026

TransektCount icon

5.0.4 APK

March 13, 2026

TransektCount icon

5.0.2 APK

February 11, 2026