Diigo annotator allows you to save, annotate and share bookmarks easily!

Save and sync
You can use Diigo annotator to save web pages to your Diigo account and the bookmarks will sync across your devices so that you can access them anytime, anywhere later.

Annotate while reading
Diigo annotator allows you to annotate web pages with highlights and sticky notes. The annotate button will pop up at the bottom when you save a page via the extension and disappear after several seconds. Just click the button to annotate!

Clean reading
Readability mode aims to improve your reading experience by removing ads and unnecessary information. It is the default reading mode when you open a bookmark within the app.

PDF reading
You can read your saved PDF files within the app directly and we will consider supporting PDF annotation in the future!

Share easily
You can share your bookmarks with annotations to others through email or IM or send it to other apps easily.

We will keep working on the improvements of Diigo annotator to make it better and better. Please feel free to contact us at if you have any questions or suggestions.

What's New

Version 2.7

1. Support highlighting with Apple pencil
2. Fix bugs

Ratings and Reviews

4.6 out of 5

89 Ratings

89 Ratings

Technology Class

L Fresquez

I was assigned to use Diigo for a graduate technology integration class and I have been very impressed with the functionality. I liked the option that synced the online version to the app. I was able to pick up where I left off when I got on the bus to go home. The tags make it easy to find related articles. I would highly recommend using this resource for higher ed learning.

Can't copy text, can't delete a pdf highlight


How on earth has Diigo survived this long with enormous bugs like...

can't copy highlights from the app and paste them elsewhere

Can't see all of my screenshot highlights of pdf

Can't delete the screenshots I do see

"Entire page" capture grabs entire document

There still isn't a way to find within page/document so i need to open the original web page to search it!

Everything is great except outlines!!!!


I use Diigo on my PC and it is great. This app is wonderful but I can not edit outlines.


129.4 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Diigo Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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