Alcohol Diary – Drinking log for iPhone

FEATURES

Features

One tap to log
Tap the drinks you usually have. Each one is saved in grams of pure alcohol.
Today, this week, days off
Compare today and this week with your weekly limit, in colors. See alcohol-free days on the calendar.
Time until cleared
A rough estimate of when the alcohol will have left your body (never use it to decide whether to drive).
Charts and CSV (Plus)
Monthly and yearly charts, and export your entries as a CSV file.

SCREENS

Screens

PRICE

Pricing

Free

Log drinks, today and this week
Alcohol-free day calendar
Time until cleared, reminders

Diary Plus

One-time purchase

No ads
Monthly and yearly charts
Export entries as CSV

Installed by December 13, 2026?
If you installed the app by December 13, 2026, everything is free for you, forever (no ads either).

FAQ

Can I keep my entries when I change iPhones?

Entries are stored only on your iPhone. Restoring your iPhone from a backup brings them over. With Diary Plus you can also export them as a CSV file.

Can I use Diary Plus without buying it again?

Yes. With the same Apple Account, tap “Restore purchase” in Settings.

Does the “time until cleared” tell me when I can drive?

No. It uses the common rule of thumb of about 0.1 g per kg of body weight per hour, and the real time varies a lot with your body, health and sleep. Never use it to decide whether you can drive.

Why is the default weekly limit 280 g / 140 g?

It comes from Japan’s Ministry of Health, Labour and Welfare guideline (2024). Guidelines differ by country, so you can set your own limit in Settings.

How do I switch the language?

Settings → 言語 / Language: Same as iPhone, 日本語 or English.

SUPPORT