This question arises before the purchase, because after all capella audio2score start is the "small" version of capella audio2score pro and therefore does not offer as many functions. On the other hand, the purchase price is lower.
audio2score start is the "smaller" version, because it completely lacks the post-processing possibility in the program: no sound tissue display, no manual changing of notes.
audio2score start does not distinguish between timbres and arranges the result only as a piano score, while in the "big" version any ensembles are possible. Furthermore, audio2score start does not offer the "holistic recognition" of the "large" version.
Both versions now have the improved "note by note" recognition algorithm: the recognized tones are automatically "sorted" and intelligently distributed to different voices.
The AI-assisted recognition works in both versions. This provides much better detection results compared to earlier versions!
The automatic barline detection has also been improved in both versions - "big" and "small".
In capella audio2score pro, you can switch from "wizard mode" to the "main program", where you will find many editing options.
capella audio2score pro suits you if you want to
capella audio2score start suits you if
You can test both programs for free - so if you are unsure, just give it a try!