An independent AI software studio
We are SigmaFlow AI, a small software studio. We build careful, easy-to-use tools that bring AI into daily reading and learning — and we keep your data private while doing it.
See our productOnionPaper helps you read books and articles in a foreign language. Bring in any e-book or article, and read the original text side by side with an AI translation. Tap any word to see what it means, save it to your word book, and take notes as you go. Like peeling an onion — you understand the text one layer at a time.
Try it at onionpaper.vercel.app →How we build
Your books and notes live on your own device. Nothing is uploaded unless you choose to back it up yourself.
The AI is there to help you read — not to interrupt you. No feeds, no notifications, no noise.
We are a small team. We build slowly, listen to our readers, and make the product better every week.
Questions about our products, or ideas you want to share? We read every message.
hello@sigmaflow.app