Most popular software

[Merlin66]

Is Stellarium the most popular program in the world??

[Startrek]

Maybe ?? but it gets my tick, a brilliant planetarium which Ive used for both Visual and Astrophotography for years
Coupled with EQMOD it’s a great way to navigate your scope across the night sky
The Stellarium developers are always improving features with every version upgrade
Can I personally thank Gion Kunz for working on and developing an Ascom compliant Stellarium ( from version 0.19.3 onwards ) which can be used for telescope control without the use of the old 3rd party StellariumScope

Cheers
Martin

[DarkArts]

Since learning to drive my G11 Gemini 1 through Stellarium (with Stellarium Scope) I wouldn't do it any other way. I also like the audible feedback from the Gemini driver ("Mount Slew", "Mount Centre", "Mount Track" etc.), which you don't get with the handset.

I can't say if it's the most popular, but it gets my vote.