Company Applect Learning Systems Pvt. Ltd. created these great apps:
Meritnation, Math Tables by Meritnation, IIT JEEnius - Formulae & Notes, AIPMT - Formulae & Notes, PSLE Prep, Report Card by Meritnation, NCERT Solutions for NCERT Books for Class 1 to 12, Teacher Connect by Meritnation, Aakash PG Plus, and others..