This repository contains the supplementary files for our study "TruVox web-based software for vocal pitch training in transgender women: Development and single-session evaluations". The following files are included: Blank informed consent forms from the online evaluation and the single-session in-person evaluation (MS Word format). Blank questionnaires from the online and in-person evaluations (MS Word format). Experimenter checklist for the in-person evaluation sessions, originally intended for internal use by the experimenters only and provided unedited (MS Word format). Deidentified results from the in-person evaluation (MS Excel format). Source code of the software version used to perform the in-person evaluation (.zip of Github export). Version 2.0 of the repository includes all files from previous versions; informed consent forms were added in version 1.1, the experimenter checklist was added in version 1.2, and open-source code was added in version 2.0.