Fun and colorful jigsaw puzzles to help children learn the letters of the alphabet.

Dictionary of Agriculture Terms & Abbreviations.Works offline,no Internet needed

Free ZIKA virus structure for you to discover it in 3D virtual reality!

Learn about measles symptoms in 3D virtual reality!

Measles Virus Game in 3D virtual reality. A free stealth game helping you to learn about the measles in virtual reality.

Measles virus replication in 3D Virtual Reality. See the child virus appear...

Measles Virus Structure in 3D Virtual Reality!

Influenza virus structure in 3D virtual reality here free for you to discover!

HIV (Human ImmunodefficiencyVirus) in 3D virtual reality harmless and free for you to discover!

Ebola virus in interactive 3D virtual reality that you can enjoy here without the danger of infection!

Bacteriophage structure in 3D virtual reality - discover this bacterial enemy!

Adenoviruses cause a wide range of illnesses - their structure is here in 3D virtual reality for free!

Laugh as you learn to read English — the award-winning Heckerty™ apps!

Laugh as you learn to read English — the award-winning Heckerty™ apps!

Laugh as you learn to read English — the award-winning Heckerty™ apps!

Laugh as you learn to read English — the award-winning Heckerty™ apps!

Prepare for UPSC, SSC, IBPS, CAT etc. with latest Test Prep Material on Rockstand

An app with many autogenerated systems of equations to practice.

Problems and exercises to solve.

And an autosolve program: write your system and get the solution.

In '10 minutes with quadratic equations' users can work with this type of equations.
If you work the ten diary minutes, you gradually notice how you will improve in maths.

Fun and educational game for small children. Learn animals by their voices!