CalPlus for Tizen smartphones like the Samsung Z1 and Z3 is a financial calculator. Actually no it isn't, in-fact it is a set of financial calculators that lets you do some crazy financial number wizardry.
When you first launch the app you are presented with a choice of common financial calculators to choose from. Once selected you can use the right calculator for the right job and hopefully it should make your job that little bit easier.
Is this something that you are likely to use? Does it need improvement or have you got feedback for the developer? Let us know in the comments section below.