(heart) Sudoku 4+

Over the past year it has been completely reliable, is easy to use and has good teaching programmes and hints built in so that it is useful for both experienced players and novices. The levels of difficulty, time recording and other features make it easy to track your progress as you develop. Some features such as auto-fill for penciled numbers in the cells can make you lazy as it makes this so easy, but this is a criticism of users like myself rather than the programme. This is the best Sudoku programme and best overall value out there that I have found. Be warned it is addictive, and I play it daily to keep my brain sharp - and because it is enjoyable.

I have used this app very happily for some time, and find the ‘scan from camera’ feature particularly useful when completing puzzles from other sources such as newspapers. The range of difficulty means it always stays challenging. Don’t usually like to pay for apps, preferring to tolerate the ads, but this one is definitely worth the money.

This Sudoku is best in class for many categories; interface, configurability and longevity being some examples. For me, it is the training in Sudoku solving techniques that makes this app stand head and shoulders above the competition. The challenge becomes regularly solving increasingly difficult puzzles without resorting to the hints. It’s well worth the modest fee.