If you liked the "technical" feel of SkyMap Pro, this is the best alternative. It is free, professional-grade, and excellent for telescope control.
Even in 2026, SkyMap Pro 12 offers features that some modern mobile apps lack: skymap pro 12 free
Right-click the .exe file, go to Properties > Compatibility , and set it to Windows 7 or XP. If you liked the "technical" feel of SkyMap