Great Look and Feel but......

Love the usability of this app. but there is one problem I find disconcerting.
The surface interval function only allows you to input an approximation of your surface interval as it does not give you an accurate reading (to the minute) of what you are entering.
Bearing in mind that 15 minutes either way can put you in a pressure group 3 groups away from where you actually are. If this is then compounded by multiple dives the result could be DANGEROUSLY inaccurate.
Adding a to the minute display would also allow student divers to use this impressive looking app. (assuming that it gives the same numbers as the actual rdp, which I have not checked yet).
I teach many students and feel this could be a real asset, but has this one SEVERE limitation. If this were fixed I would unreservedly recommend this app but as it is now I recommend it but with strong caution and advise you that if you use it, to check your numbers against a PADI RDP, e(RDP) or nitrox tables (which kinda defeats the purpose of having this app in the first place).
P.S. Try adding a minimum surface interval feature, then this really would be a dive planning Powerhouse.

marc2323 about iScuba Plan