Squid: Take Notes, Markup PDFs

67.9K reviews
Editors' Choice
Content rating
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About this app

Take handwritten notes naturally on your Android tablet, phone, or Chromebook supporting Android apps! With Squid you can write just like you would on paper using an active pen, passive stylus, or your finger.

Easily markup PDFs to fill out forms, edit/grade papers, or sign documents. Import images, draw shapes, and add typed text to your notes. Quickly select, copy/paste, and move content between pages and notes. Organize your notes within notebooks and increase your productivity!

Turn your device into a virtual whiteboard or give presentations in a class, meeting, or conference by wirelessly casting to a TV/projector (e.g. using Miracast, Chromecast). Export notes as PDFs or images, then share them with others or store them in the cloud!

Squid is vector based - keeping your notes beautiful at any zoom level and on any device. You can erase entire letters and words quickly with the stroke eraser tool, or just parts of words with the true eraser tool. The selection tool allows you to change the color and thickness of your handwriting and even resize a drawing whenever you want without any loss in quality.

Squid takes special advantage of active pens on capable devices to provide natural, pressure-sensitive handwriting. Just write with the pen and erase with your finger!

Squid is designed to be both powerful and simple to use, allowing you to take notes quickly and efficiently.

• Featured App in Google Play
• Category Honorable Mention for Productivity in the Samsung Galaxy Note S Pen App Challenge: https://goo.gl/Ji9dCS
• Popular Choice Award in the Dual Screen App Challenge: https://goo.gl/J7uT0B

Key Features
• Take notes naturally with a pen and erase with your finger on active pen enabled devices (e.g. Galaxy Note devices with S Pen)
• Take notes with your finger or passive stylus on non-active pen devices (e.g. Nexus 7)
• Vector graphics engine
• Multiple paper types (e.g. blank, ruled, graph) and sizes (e.g. infinite, letter, A4)
• Undo/redo, select, move, and resize
• Change the color and weight of selected items
• Cut, copy, and paste items between notes
• Two-finger scroll and pinch-to-zoom
• Two-finger double tap to quickly jump to a specific zoom level
• Organize notes within notebooks
• Sort notes and notebooks
• Import, crop, and resize images
• Export notes to PDF, PNG, or JPEG for printing, archiving, or sharing
• Share notes with friends and colleagues via email, Evernote, etc.
• Multi-Window support
• Shortcuts to create a new note or open a notebook
• Present notes on a secondary display via HDMI, Chromecast, etc. (Android 4.2+)

Squid Premium
• Create notes and pages with premium backgrounds (math, engineering, music, sports, etc.)
• Import PDFs and mark them up like any other note
• Express yourself with additional tools (highlighter, “true” eraser, shapes, text)
• Backup/restore and bulk export notes as PDFs to cloud storage providers Dropbox and Box

Learn more about Squid Premium: https://goo.gl/mJFjeO

Google Workspace for Education customers can purchase Squid Premium in bulk using the Squid EDU Bulk License app (https://goo.gl/Kkxjtk)

Information about active pen devices: https://goo.gl/6BRJy

Explanation of required permissions: https://goo.gl/q5f8Y

If you encounter any bugs, please email us at help@squid.app with a description of the bug!

We would love to hear any feedback or feature requests you have at https://idea.squidnotes.com
Updated on
Jan 5, 2024

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

32.9K reviews
December 17, 2023
UPDATE CORRUPTED YEARS OF WORK--CAN'T ACCESS ANYTHING AND NONE OF THE BACKUPS SAVED 10.18.19: Now it's deleting words as you write them so having to write things several times to take. Resetting app & device do not help. Still want a true eraser for the highlighter. Great for writing in bed if you write better using pencil but need to type it up later. Add-ons were 100% worth it before requiring a subscription. Love the page additions for anywhere in doc, miss being able to say before or after.
9 people found this review helpful
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Steadfast Innovation, LLC
December 18, 2023
Hi Ashley - Thanks for reaching out to us. We received your support request and will look into this further with you. Please refer to your email for additional responses from us. Thanks so much!
A Google user
December 11, 2018
Excellent app for capturing my handwriting! I use it on a Chromebook Pro, and it's even smoother than writing on paper. I'm able to easily organize my notes into notebooks, add pages to my notes, and even change whether I'm writing with notebook paper lines, graph paper, or plane white. And did I mention you can change the colors and thickness of the ink? Now, I'm not a fan of subscribing to things - the freemium version of Squid will do almost everything you need for notetaking, and I'm very happy with it. I did some in-app purchases for typing on the screen and adding shapes, and those have been worthwhile and affordable. --- Update: I now also have the app on my phone, and alas there is no way to sync the notes from my phone and my Chromebook. However, both my phone and Chromebook automatically backup my notes to Dropbox every day as PDF's, and it's easy to export the really important notes to specific folders in my Google Drive (and other online platforms) as needed. Plus you can't beat the control for line thickness, color, and page background. Granted, you get even better backgrounds (including daily planner) if you sign up for premium, and I can't afford that. But with a few in-app purchases you can get PDF and JPG import, which will them provide any background you could possibly want. I actually use the app to take photos and then draw sketches over the photos. Once the sketch is done, I copy the lines over to a plain white background, and voila - a nice cartoon image. Do if you're looking for a versatile and dependable notes app with automatic backup, I think this may be your best bet.
4 people found this review helpful
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A Google user
September 22, 2018
Perfect for my Chromebook Pro, I use it all the time for taking notes in class. Only wish it went full screen so the bottom dock bar would go away, as buttons sometimes get pressed! (EDIT: I realized you can press the full-screen button on the physical keyboard and the dock goes away!) Pro version, which includes importing PDF files, is $1.00 a month which is well worth the cost of paper for notes I would normally be buying. 😁
4 people found this review helpful
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What's new

Squid is now 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
• Fixed issue with Google Drive authentication
• Fixed PDF export crash on Android 14
• Fixed repetitive crash at startup caused by Cloud Export

Full changelog: http://goo.gl/EsAlNK