The 'Tortoise Diary' was developed to aid successful tortoise husbandry, Record keeping really does play an important if not crucial role towards maintaining healthy animals (in some cases it saves lives, its that important). Small changes can easily go unnoticed even to the experienced eye, the most dedicated individuals used to rely upon scribbles and jottings of some figure or other (been there) allowing for things to get over looked.
We can't stress how important preventative measures are, after all the emails we receive from tortoise keepers at there wits end with an already ill tortoise... Not to say we can simply prevent any ill health to your tortoises, but even when you're working in a reactive manner a small change needs to be spotted as quickly as possible.

Many years ago we decided to put our PC to good use and build an application which not only could help in this laborious task or record keeping but would go way beyond what paper could ever achieve. The 'Tortoise Diary' was born a tracking system which at a touch of a button could report the last years weight loss of 'terry' the tortoise in hibernation, a filing system for good house keeping one that could keep all the records neatly organised in together but then could fetch one instantly, a plotter which you could visually show the growth rate over a given time span to help diagnose health issues, weight gain or loss rate, and help to determine females which could be retaining eggs.
Numbers are great for computers and calculators but when there's pages of figures for each tortoise nothing beats a plotted graph to see a clearer picture of his / her's development, If there had been no historical data recorded much of the knowledge we have now would most certainly be lacking.
Since it all started the 'Tortoise Diary' has come on leaps and bounds, its proven very popular being one of a kind and with your help we continue to build on it with new ideas.