MultiDeco

2020 - Buyers be aware that the purchase of this program is not transferable across platforms (mobile or desktop ). If you want to use it on both, you have to buy the program twice. I spoke with Customer Service and they confirmed I would have to purchase twice however that bit of info is not readily found on their website.

Its missing the ability to put both CCR and OC legs in the same dive plan (this option is available in the full Mac version). This is a very useful function for easily calculating and figuring out bailout gases for CCR. (The included bailout function isn't great). This is functionality that they will hopefully add in the next version. Sticking with the "full size" version for now.

The iOS version has the basic functionality of the desktop software but is missing some of the features, such as running lost gas and OT/OD scenarios directly from the same profile. These can of course be done manually by editing the dive profile and recalculating. Generally I find the app quite handy and it lets me avoid bringing a notebook computer when traveling on dive trips. An update for the native screen resolution of the iPhone 6 Plus and 6s Plus would be nice. It's been over a year alr

It's the only game in town, but the developer really needs a designer. It's still not formatted for the larger screens and overall the UI is pretty bad. One day someone with similar tech diving knowledge is going to come along with a really good UI and knock HHS off its throne. Lesson: never rest on your laurels. Always keep improving.