ePureNote is a note-taking app built by an electrician for field professionals: contractors, architects, technicians and freelancers.
Each note is a full page: on-site photos with annotations (pen, highlighter, ruler), formatted text, checklists, attached PDFs and 3D IFC models. Everything works offline.
The desktop app (Windows and Linux) syncs with the phone over your local network: no data goes through an external server, no account, no ads. Export notes to PDF and Word. Full backup in a single file, free.
Free Android app; yearly subscription (€49 excl. VAT) unlocks PDF/Word export and the desktop app with sync.