Updated May 2022
4A’s — US/CA
AQR — market research
Business of Apps — ASO & mobile apps
Capterra — software
Crozdesk — software
Extract.co — software
Good Firms — software
GreenBook — market research
Mobile App Daily — ASO & mobile ads
Neilsberg — research services
Quirk's - market research
Software Advice — software
The Dots — for hires & more
TheWebAppMarket — ASO & mobile apps
Trustradius — software