Very fun app!
The bad reviews are probably due to user error IMO. See, me and my friends love using this periodically the drunker we get! And the BAC increases every time. Tried it out on a sober-ish friend who just arrived and he was much lower in BAC.
Fun app overall, but its not going to change my drinking and driving habits
Mostosf about
BreathalEyes - BAC Scanner - Breathalyzer