mhowe9

I don't really use them much, but here's what I'm aware of:

Dose, by Seachem
Reef Invertebrates Guide
AquaTrax
Aquarium Definitions, I think (it's an acronym guide)

The one I do use is Aquanotes, designed to talk to my AC3.
And I like the annual MACNA app, that has all the speaker's presentations listed by timeline.

Thanks Mark

Another decent app is PocketReef. Good amount of IDs and basic if not thorough info on fish, corals, inverts and macros.

There is also a Apex app for android, that will show you all the apex stuff.

Aquaria is a good app. Test log with averaging, and fish info and compatability guides.