What is Squid used for?

Squid is a handwriting note-taking app for Android tablets and phones that also supports marking up PDF documents. It is a good fit for handwritten notes on an Android tablet and annotating PDF handouts.

Is Squid open source?

No. Squid is proprietary (closed-source) software. Open-source alternatives to Squid include Butterfly.

What are some alternatives to Squid?

Squid competes with GoodNotes, Notability and Noteshelf. For open-source options, see Enlisted's ranked list of open-source Squid alternatives.

Squid: features, pricing and alternatives

About Squid

Squid is a note-taking app for Android devices that is built for writing and drawing by hand. It runs on tablets and phones, and it lets users mark up PDF documents with pen input as well as keep their own handwritten pages.

Squid runs as an app on the user's own device and is not a self-hosted server product. It is relevant to Android users who take handwritten notes with a stylus, see the vendor's site for current features and pricing.

Key features

Handwritten notes on Android
PDF markup with pen input
Support for tablets and phones
Drawing and sketching

Good fit for

→Handwritten notes on an Android tablet
→Annotating PDF handouts

Tags: handwriting; notes; android; pdf-annotation; stylus; note-taking

Squid: questions and answers

What is Squid used for?: Squid is a handwriting note-taking app for Android tablets and phones that also supports marking up PDF documents. It is a good fit for handwritten notes on an Android tablet and annotating PDF handouts.
Is Squid open source?: No. Squid is proprietary (closed-source) software. Open-source alternatives to Squid include Butterfly.
What are some alternatives to Squid?: Squid competes with GoodNotes, Notability and Noteshelf. For open-source options, see Enlisted's ranked list of open-source Squid alternatives.