Singapore Toto
I have spent much time in evaluating numerous lottery and Toto software's. Some of them are good, others left allot to be desired. A few are specially written for a particular Lotto and Toto game, (e.g. the UK 6/49 or Aust 6/45+2B) thus not really useful for other lotto and Singapore Toto games. Most commercially available programs can be used for Toto and other Lotto games as well as for Powerball, Keno and 4-Life. Lotto Logic - the 5 stars Editor's Choice Award Lotto program. It is my personal favorite, with capabilities to track the range and frequency of numbers. Can be used to keep records of Singapore Toto and similar lottery games of most countries or states. Very powerful and user friendly. Reasonably priced at US$19.95 Highly recommended for all serious gamers and people like me who like to track Lotto and Toto games.
Some Toto software are free of use for a limited period. You can try first, then buy them. Good luck on next Singapore Toto!