Since you have an iPhone, I’ll put in a second vote for Mac-Dive. Despite the name, the iOS version is also really great. If you also use a Mac computer, this is the way to go. The app has every feature you could think of. Updates are a bit slow to come out, but the app is stable and many computers are supported.
MacDive
View and log your dives on the go. Detailed profiles, images, Smart Bluetooth downloads and more. We've brought the best features of MacDive for macOS to your pocket. MacDive for iPhone can be used as a fully featured standalone dive log, and it also works great in conjunction with MacDive for...
apps.apple.com