1.5.0
Oct 31, 2026 · seen Nov 5, 2026
• New ladder logic symbols [PRO]: contacts, coils, timers, counters, comparisons, math blocks and a PID controller<br>• Have your say — tell us which features you want next in a short in-app survey<br>• Faster app — quicker startup and faster opening of the diagram editor<br>• Bug fixes and stability improvements
1.4.0
Oct 23, 2026 · seen Oct 26, 2026
• DXF export [PRO]: open your diagrams in AutoCAD, LibreCAD and other CAD programs, with every symbol as an editable block<br>• DXF compatibility mode [PRO]: saves labels and values as plain text for LibreCAD and FreeCAD (Settings → Export)<br>• Voice search — tap the microphone and say a symbol name to find it<br>• Right-to-left languages — the editor and symbol menus now display correctly<br>• B
1.2.0
Oct 10, 2026 · seen Oct 15, 2026
• Symbol info — the selected symbol's label and name now show at the top of the screen<br>• New logic symbols [PRO]: NEMA logic gates and a Schmitt trigger<br>• New protection symbols [PRO]: three-pole circuit breakers, motor protection and residual current breakers<br>• New diode symbols [PRO]: bridge and three-phase rectifiers<br>• New passive symbols [PRO]: new capacitor styles, feed-throug
1.1.0
Oct 5, 2026
• Line styles — change a wire's style, thickness and color<br>• 19 new Pro symbols: IEC logic gates, shunt, tapped and fusible resistors, heating element, memristor, attenuator and more<br>• Quick unlock — tap the “Diagram locked” badge to unlock a diagram<br>• Now available in French and Italian<br>• Bug fixes and stability improvements
1.0.0
Sep 29, 2026
• PROTOSchem Premium: one-time unlock of all PRO features<br>• New symbols: switches, relays, protections, connectors [PRO]<br>• Big A-series canvas for larger schematics [PRO]<br>• New languages: Polish, Spanish, Portuguese, German<br>• New themes: EDA Classic and Digital [PRO]<br>• Grid styles: dots, crosses, dashed [PRO]<br>• More page details: logo, author, revision, customer, company [PRO]<br
