Chat is always free. Videos use credits. You start with a paid trial, then your chosen plan continues unless you cancel.
The idea in one minute
Doubtster is for the moment you are stuck on a question and the textbook is not helping. You type the question. You get a written answer. If you want to see the steps drawn out and spoken, you can turn that answer into a short video.
That is the whole product. Everything else on this page is detail.
Three steps
- Ask. Type or paste your question. Chat is free, always.
- Read. You get a step by step written answer you can follow at your own pace.
- Watch. Want it explained visually? Generate a video. Each video uses one credit.
What it costs
| Plan | Price | Video credits |
|---|---|---|
| Trial | $1.99 for 7 days | 3 videos |
| Monthly | $7.99 per month | 30 per month |
| Annual | $59 per year | 30 released each month |
Need more? You can buy top-ups on a paid plan. Read Credits explained for the details, and how the trial works before you start.
A word on accuracy
AI is good at explaining and sometimes wrong. We say so plainly. Use Doubtster to understand, then check anything that matters, such as exam answers, with your teacher.
AI explanations can contain mistakes. Check important answers with your teacher.
AI explanations can contain mistakes. Check important answers with your teacher.