TransektCount icon

TransektCount

Wilhelm Stein
Science & Education
Version
5.1.6
Size
27.1 MB
Requires
Android API 30+
3.6 / 5 · 5,330 ratings 0 downloads

Updated Sep 22, 2026

Quick answer

A butterfly monitoring app for transect counters.

F-Droid repository metadata

TransectCount supports the species-specific counting of butterflies per transect section according to the European Butterfly Monitoring Scheme method. It is meant for transect counters to ease registering butterflies and day-flying moth during transect surveys.

New in Version 5.1.6: - Code improvements - GPX file import recognizes also files having 1 track with n track segments instead of having n tracks - Entering species notes proposed with predefined wordings like "Photo", "Flyby", "New species", … - Cloud %-values rounded to multiples of 10 - More restrictive plausi for input of metadata numbers - Name composition for exported files changed - "Help" text updated - Docs updated - Bugfix for importing a species list

Features: - Data collection is based on a transect inspection. - Databases refer to a transect and can be individually created and customised within the app with regard to metadata, transect sections and expected species. - The app contains an internal list with many European species and has a prepared database for a transect section with the most common species to be expected in Germany as a starting point for direct use. - Export of the current species list for later re-import by TransektCount or import by the complementary app TourCount. - Separate counters for internal/external counting areas and separately for ♂-♀-indeterminate, ♂, ♀, pupa, caterpillar or egg. - Results page with prepared presentation for transfer to the input mask of Butterfly Monitoring Germany (web.app.ufz.de/tagfalter-monitoring/). - The results can be exported in formatted XLSX or CSV format, as well as in an SQLite database file (e.g. to transfer them to a PC, for easier reading in a spreadsheet program, or for further processing). - The help contains detailed user instructions. - TransektCount supports counting in German, English, French, Italian and Spanish language and provides locale species names in these languages.

Functions: - Duplicate and delete transect sections. - Editing the transect section lists (adding and deleting species and editing terms). - Editor for metadata in preparation for an inspection. - Counter page per section with scroll-down list for species selection. - Species editor for annotation and bulk counter entries. - Optionally, GPS support for an info to change the current section. - The results page shows metadata, notes, totals and counting results per species and transect section.

Prerequisites: The app requires permits for - storage access for importing and exporting counting data, results, species lists or track data, - preventing the sleep mode und - (optionally) the GPS controlled signaling of the current transect section.

The device screen should have a minimum resolution of 1024 x 1920 pixels. The app can be used with Android version 11 or newer.

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

TransektCount is one of two apps for monitoring European butterflies. The second app, TourCount, supports the species-specific and individually GPS-localised counting of butterflies on any walk in nature.

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

Screenshots

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What’s new

How to install

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