confusing

So far, its vry frustrating. I dont own a dive computer and this app. wants the make of my dive computer and keeps asking for it. It wont save my information it seems uless I put in my computer make and model. All I want to do is log my dives and it doesnt seem to want to save anything. Thus far, I hate it and will be deleting it if I cant get it to work in the next few minutes.

ecnsfire about DiverLog Lite, v1.0.2