A barcode encoding library supporting over 50 symbologies.
VCF vcard, XML xcard, JSON jcard;View, Edit, Convert, Export, CSV, QR
Precision Trigonometry: Advanced Calculator for Complex Math
software for email automation (newsletters, transaction mails, etc.)
A powerful arbitrary-precision calculator.
A calculator like programming language
The Internet of Things
A free constants calculator
One of the best simple arithmetic calculator!
An arithmetic calculator for the most popular numerical systems.