SodBrain MathEasy is a brain-trainer, a free java-based mobile application that allows you to accelerate your brain by solving basic mathematical and logical problems. (English and French Versions)
Greenfish Plot - This program is an advanced curve plotting application for mobile Java devices. It supports plotting multiple explicite, polar or parametric function curves. It can also perform numeric calculations such as calculating the value, derivative, integral, roots, minimum or maximum of a given function
Trigonometry - Trigonometry is a branch of mathematics which deals with triangles, particularly triangles in a plane where one angle of the triangle is 90 degrees (right angled triangles), and a variety of other topological relations such as spheres, in other branches, such as spherical trigonometry
TouchSheet_ME - The full version of TouchSheet programm (for touchscreen mobile phones) is a revolutionary mathematical tool for mobile phones. The program is must-have for students, engineers and researchers. TouchSheet program includes four (04) applications (Statistics, Curve fitting, Interpolation and Matrix operations) with a large of features
The program TouchMaths (for touchscreen mobile phones) contain a set of revolutionary mathematical applications (Professional Calculator, Graph 2D, Function solver, Integral solver, Equation solver and Linear system solver)
QWERTY Convert - QWERTY Convert is a utility targeted towards smart phones that come with a full keyboard. The utility enables easy dialing of vanity numbers, such as 1800-Flowers from a full non-alphanumeric keyboard, such as the one found on your blackberry
This is a number converter. You can enter a decimal, hexdecimal, binary or octal number and see what it is in the other formats. The full version has a very much better interface plus you can convert to and from any base, it's available only for 0.5$