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I’ve built Clarisu, an app that generates short educational podcasts from any topic you give it: https://clarisu.com
It started from https://pdftomp3.com, a tool I made to turn PDFs into audio. I mostly used it to listen to AI papers, but I still had to download the MP3s to my phone. So I made an app instead!
Now you just enter a topic in a textbox, and it builds a “podcast episode” with paragraphs and chapters. It has a “Clarify” button which goes deeper into a topic. This is where the name comes from :) I think I’ve learned a lot of new things by listening to my own episodes!
Next up: adding PDF uploads directly into the app.
I would love your feedback!
Android: https://play.google.com/store/apps/details?id=com.jbuild.und...
iOS: https://apps.apple.com/us/app/clarisu-understand-app/id67511...
Now, after a year and over 3,000 signups and some paying users, I've invested more time into it, with the help of AI programming :) During that year I've switched to the newest models, which made the app smarter over time. I’m curious what you’d use it for.
Do you like the AI explantions? This is my favorite feature, but most users prefer listening to the original text. Sometimes the AI explanations are a bit repetitive, and I'm working on improving that.
Currently, I’m creating RSS podcasts so I can listen to the episodes on my phone using AntennaPod. But I think the next step is to make an app.
Google Gemini now offers Audio Overviews, which are quite good. However, my app is different because it breaks the document into semantic sections and you can listen to each section independently. A whole paper will be a multi-hour audio, like an audio book. The audio experience is the product.
I would love your feedback (I even made a form for that on the website).
https://www.pdftomp3.com/