User Interviews:

User interviews is similar to respondent, they offer interview opportunities on a wide range of topics.

I have had less success with them but have still earnt £244 over the last couple months and also completed some really interesting interviews.

Respondent:

Respondent is my favourite user testing site, they offer a large number of interviews on a wide variety of topics, meaning you are likely to get picked for something. I complete an average of 5 interviews a week, with some being with AIs and others with real people.

I have earned £329 in only the last 3 months with this site and can't recommend it enough.

You can only make 5 applications a day so try and focus on topics that are likely to be relevant to you, also the sooner you apply to a study the more likely you are to be accepted.

Askable:

Askable is another good option for user testing. They offer a mixture of short 15-30 minute AI interviews (usually paying £5 each) and longer in person interviews for higher pay outs. I find it very easy to qualify for every AI interview, although they are usually pretty boring.

I have earned £390 with Askable so far and complete at least 5 of the AI interviews per week.

UserBrain:

UserBrain is a different type of site, they run as a browser extension which notifies you if a study is available. You then complete a short screener questionnaire and if you match then you usually provide spoken feedback on a website prototype. Each task pays $5 and usually takes around 10 minutes.

I have completed 7 tests and earnt £44.

Usercrowd:

Usercrowd also has different types of studies, they are short usually under 2 minute tasks that typically involve responding to a web page screenshot and giving feedback. Occasionally they also have longer, higher paying interviews.

I have completed 85 tasks, 2 of which were longer interviews and earnt a total of £171.

Testable Minds:

Testable minds offer interesting pyschological studies which are usually a part of academic research. These are the most interesting studies I have completed out of all of these sites mentioned, however the pay is not as good and studies are fairly infrequent.

I have completed 3 studies and earnt £9