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Free
Calculator

Display a simple interactive calculator to your users

Free
Ruler

Display different shaped rulers with different metrics

Free
Unit Converter

Convert between more than 30 different units of measurement

Calconic

Embed custom calculators created using Calconic

Checklist

Display pre-filled checklists to your users

Contact

Send a message to the author

Flash Cards

Display flashcards containing questions and their respective answers inside your ebook.

Google Forms

Display a form straight from Google Forms inside your ebook.

Glossary

Display a list of words and their definitions

Google Maps

Display Google Maps and manage location presets

Google Translate

Translate words and phrases using Google Translate

MP3 Player

Play different MP3 playlists

References

View a list of linked references

Reminder

Receive preset reminders inside your ebook

Roll the dice

Roll one or two dices on top of the ebook

Scientific Calculator

Perform complex calculations using a scientific calculator

Scratchpad

A blank notes app to write your notes in

Soundscapes

Listen to unique soundscapes as you read

Voice Notes

Record voice notes for yourself and play them back easily any time

Sudoku

Display sudoku puzzles inside your ebook.

Crosswords

Display crossword puzzles inside your ebook.

Google Calendar

Share events of a specific Google Calendar with your readers.

Currency Converter

Convert between different foreign currencies

Image Viewer

Display a gallery of images inside your ebook

PDF Viewer

Display a PDF file inside your ebook

Google Slides

Display a Google Slides presentation inside your ebook.

Wordsearch

Display a Wordsearch puzzle game inside your ebook.

RSS Reader

Display any RSS feed in your ebook

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