Last updated on 12 May 2026
Know Recorder is a CTBT tool that makes it possible to create video lessons very easily from your tablet and even your smartphone, whether your device runs on iOS or Android.

Once Know Recorder is installed on your iPad or Android tablet, you will be able to draw and talk, the app will automatically record your voice and everything that happens on the screen. You can import PDFs or images to the screen and then annotate them with a well-provided toolbar that will allow you to write, draw, insert erase shapes etc.
It's up to you to comment orally. Videos with what is happening on the screen and your voice are recorded directly by touching a button. Your video can be composed of several pages. It is simple and practical to use. The creators of Know Recorder did it right. Once your finished video you will still be able to edit it and edit passages thanks to a mounting table integrated into the software. For example, you can re-record your voice on all or part of the video.

Once satisfied with the result, Know recorder will make it easier for you to share of your educational video. You can do this directly on Facebook, but more conveniently, you can upload your video directly to YouTube.
A simple tool to use and quite playful in the end to simply create small videos for your students from your tablet. Ideal for the inverted class. Know Recorder is in English, but easy to access. Another advantage, but not least, KnowRecorder is free.
Link: Know Recorder