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 5.1.5:
- Code improvements
- Remaining Java modules converted to Kotlin
- Name composition for exported files changed

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.