Userbrain ($) β For unmoderated user testing on live websites.
Maze ($) β Product suite for unmoderated usability tests.
Hotjar ($$) β Brilliant toolkit for in-app surveys, recruitment, and user recordings.
User Interviews ($$) β Recruit users for interviews from a participant pool or from your own user database. Offers built-in scheduling and incentive management.
Usertesting ($$$) β A complete user research suite for both moderated and unmoderated testing, better suited to scale-ups and enterprises due to high costs.
Lookback ($$) β For unmoderated testing on mobile apps.