Squid: Take Notes, Markup PDFs

70.3K reviews
Content rating
Rated for 3+
10M+
Downloads
Content rating
Rated for 3+
In-App Purchases
Learn more
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About this app

Transform your note-taking experience with Squid! For over 12 years, Squid has been a trusted app with over 12 million installs, helping users replace paper, save money, and reduce waste. Write just like you would on paper on your Android tablet, phone, or Chromebook!

✨ Key Features:

• ✍️ Natural Writing: Seamlessly write with a pen and erase with your finger on active pen enabled devices like Samsung devices with S Pen. Use your finger or capacitive stylus on other devices.
• ⚡ Low Latency Ink: Enjoy a seamless and responsive writing experience with support for low latency ink¹.
• 🔒 Private: Notes are stored on your device and are completely private. No account or sign-in required. Backup your notes to your desired location.
• 📝 PDF Markup: Easily annotate PDFs, fill out forms, edit/grade papers, and sign documents.
• 🧰 Versatile Tools: Use any color pen or highlighter, import images, draw shapes, and add typed text.
• 📁 Organize: Select, copy/paste, and move content between pages and notes. Place notes in folders to stay organized.
• 📊 Presentations: Turn your device into a virtual whiteboard and cast your notes to a TV/projector.
• 📤 Export: Export notes as PDFs, images, or Squid Note format and share or store in the cloud.
• 💰 Save: Reduce stationery costs and replace paper notebooks with Squid for eco-friendly note-taking!

🏆 Awards/Recognition:

• 🌟 Featured App and Editors' Choice in Google Play
• 📈 Category Honorable Mention for Productivity in the Samsung Galaxy Note S Pen App Challenge
• 🎉 Popular Choice Award in the Dual Screen App Challenge

👑 Squid Premium:

• Premium paper backgrounds: math, engineering, music, sports, planning, & more
• Import and markup PDFs
• Additional tools: highlighter, true eraser, shapes, text
• Backup/restore and bulk export notes as PDFs to Google Drive, Dropbox, or Box

🛠️ Base Features:

• Vector graphics engine keeps your notes beautiful at any zoom level and on any device
• Various paper backgrounds (blank, ruled, graph) and sizes (infinite, letter, A4)
• Erase entire letters or words quickly with the stroke eraser
• Undo/redo, select, move, and resize
• Change color and weight of selected items
• Cut, copy, and paste items between notes
• Two-finger scroll, pinch-to-zoom, and double tap for quick zoom
• Sort and organize notes and folders
• Import, crop, and resize images
• Export notes to PDF, PNG, JPEG, or Squid Note format
• Share notes via email, Google Drive, Evernote, etc.
• Multi-Window support (take notes while watching a video)
• Shortcuts to create new notes or open folders
• Dark theme

🎓 Google Workspace for Education customers can purchase Squid Premium in bulk at https://squidnotes.com/edu

🐞 If you encounter any bugs, please email us at help@squid.app with a description.
💡 We would love to hear your feedback or feature requests at https://idea.squidnotes.com

¹Low latency ink is available now on Chromebooks and coming soon to Android devices.

🎯 Increase your productivity and unleash your creativity with digital handwritten notes. 👉 Try Squid for FREE today!
Take handwritten notes for class, work, or fun! Easily markup PDFs and share…
Updated on
Aug 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity and App info and performance
  • Data is encrypted in transit
  • You can request that data be deleted
  • Committed to follow the Play Families Policy

Ratings and reviews

33.7K reviews
NG 01
July 30, 2020
Locked in house because of quarantine, couldn't get out to buy stationary. After thinking for 2days and searching on Google Play.. I bought the 1 year subscription. Best note taking app so far, also with very nice of types from single line to maths, sports. Cheaper than notebooks I bought for a year in real life. Pages are also infinite (per note) in this app. Even in free version.
29 people found this review helpful
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Steadfast Innovation, LLC
July 31, 2020
Hi there - Thank you for your detailed review. We're so glad you enjoy using Squid and that it has been so helpful to you in this time!
Quito Banogon
September 4, 2026
After nearly 12 years of using it, Squid is still my favorite app for when I need to sketch diagrams or concepts for my user experience and product design work
3 people found this review helpful
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Steadfast Innovation, LLC
September 7, 2026
Hi there! Thank you so much for your review. We’re thrilled that you’re loving Squid! Don’t forget to follow us on X @squidnotes to stay updated on all our latest features and to share your amazing creations. We’re dedicated to making your note-taking experience the best it can be!
Donna QC
July 24, 2026
This is an amazing note taking app. I've been using it for years. Write with the pen, use your finger to erase. I'm a teacher and use it for marking student rubrics, then I export it to their Dropbox folders and done!! it has streamlined my marking and made my job easier for years!! Thank you!!! subscription worth it everytime. Colleagues are always in awe when I show them how I can edit student work, upload it, then start again so quickly.
8 people found this review helpful
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Steadfast Innovation, LLC
July 29, 2026
Hi there! We’re so happy you’re enjoying Squid. We’re always eager to hear from our users—please share your ideas and vote for new features at idea.squidnotes.com. And if you ever have any questions, don’t hesitate to reach out to us at help@squid.app. Your feedback helps us shape the future of Squid!

What’s new

Squid is over 10 years old! We’ve been working hard on some big updates, which we've coined "Squid10". Squid10 is not yet fully featured and is available via opt-in to get your feedback and make improvements. Just tap "Try Squid10" and be sure to send us your feedback!

Latest Highlights
• Improved app startup reliability
• Fixed bulk exports when names contain consecutive periods
• Under-the-hood compatibility improvements
• Misc bug fixes and improvements

Full changelog: http://goo.gl/EsAlNK
Content rating
Rated for 3+
In-App Purchases
Learn more

App support

About the developer
STEADFAST INNOVATION, LLC
support@steadfastinnovation.com
890 Monterey St Ste D San Luis Obispo, CA 93401-3291 United States
+1 805-470-1015

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