Youtube transcripts with punctuations, paragraphs and chapters. Also available as a free Chrome extension or iOS app.

Instant Transcripts of Sam Altman from OpenAI Instant Transcripts of Sean Carroll Instant Transcripts for Lex Friedman on the smartest people he has even met


Transcribe YouTube videos, files or your microphone on your Mac


Screen Recorder for MacOS with audio and Zooms


Clean screen sharing for Zoom, Meet, Teams (featured by the Apple Store editors ★★★)

PDF Reflow

Read mobile-ready PDF (great for research papers and business reports), preserving colors, fonts, images, figures & math formulas.


View and save any "readable" web pages and PDF documents directly from Mobile Safari, export to PDF or fulltext with images.


Highlight Web pages, PDF, PowerPoint and Word, all your articles are synchronized to iCloud.

Yawas Highlighter

Highlight the original web pages in Safari for iOS, Chrome, Firefox, Edge


Award winning math game for kids. Practice tables, addition, subtraction, multiplication and division up to table of 12.


Learn over 500 English words by spelling them with a single swipe or pop each letter in sequence.


Learn USA states, capitals, national parks and main cities!

Web Experiments