Reviews

When I asked colleagues which software had really made a difference to their pupils' learning in maths, there were many suggestions. The winner of my straw poll is Omnigraph from SPA. Second was Excel. Omnigraph is excellent value for money.
TES

I was personally impressed with this program when utilizing it with a Year 7 class demonstrating the effect of gradient and the Y intercept on the movement of a linear function, and found it extremely supportive when covering inequalities with Year 11. Class feedback in general suggests that being able to see the effects of movement on the functions, and the interactive nature of the experience enhances understanding. Comments also indicated that learners found the program user friendly. The ease of use and the clarity of the screen features will now ensure that I overwrite some of my schemes of work to incorporate Dynamic Omnigraph rather than the program currently in place. (Read the full evaluation)
schoolzone.co.uk

Omnigraph is what secondary school maths teachers have been dreaming about for years. Its success lies in its depth of functions, whether from being able to automatically draw the tangent of a curve at any point you desire, to being able to choose the colour of each separate graph. After using Omnigraph for a good half hour you will find that it is full of surprises. Expectations are most certainly lived up to, especially in the variety of trigonometrical functions included, for example asinh, cosec and cot. The Help file is superb, and any problems are easily solved by a quick look through it. A great all-round package for any maths department.
Interactive

Omnigraph has been the only educational software I find worthwhile using.
College Lecturer Singapore