Transform how you take notes with Squid. Write naturally on Android, Chromebook, or phone - no paper needed. 12+ years of trust with 12M+ installs, saving money and reducing waste. Download Squid now.

About Squid

Squid is a trusted digital notebook designed for modern note-taking. It enables you to write naturally on Android tablets, phones, or Chromebooks and to markup PDFs directly within the app.

Core capabilities

• Natural handwriting experience that feels like writing on paper on a digital screen.
• PDF markup tools to annotate documents without leaving the app.
• Cross-device writing across tablet, phone, and Chromebook for seamless productivity.
• Eco-friendly workflow that helps replace paper, save money, and reduce waste.

Why choose Squid

• Trusted by millions: over 12 million installs and 12+ years on the market.
• Simple, distraction-free interface designed for focus and efficiency.
• Reliable performance tailored for both personal and professional use.

Getting started

1. Install Squid from the Google Play Store.
2. Open the app and start writing with a stylus or finger.
3. Import PDFs to markup and export finished work.