Vyper is cool, may be a little confusing at first but when you get the hang of it you should like it. A ball python breeder had a big hand in developing it. It is pretty inexpensive too. I used to use a free online tracking system but was simply asked the question..."What if those people decide to quit doing it?". Everything would be lost, Vyper is yours, only way to lose anything would be for your computer to crash.