Everyone forgets a night. You get to the pub, the phone stays in your pocket, and the next morning there is a gap in your history where an evening should be.
Add a Past Session fills that gap. It is free for everyone, and the session you build is not a second-class entry: it gets the same timeline, the same totals, and the same AlcoScore treatment as one logged live.
# Step 1. Start from the Home screen
With no session running, tap Forgot to track? Tap here to add a past session, the small link under the Start Session button on Home.
You do not need to remember much. A rough start time and the drinks you had is enough to make the entry worth having.
If you are in Sober Mode, the link is not on Home. Instead, tap Had a drink? Tell AlcoLog on the Sober Mode Home screen and then Add what you had, which opens the same screens described below. See how to use Sober Mode.
# Step 2. Set when the session started
The first screen asks When did it start? Pick the date and time on the calendar, then tap Continue. This is the anchor for everything else, so get it roughly right; you can change it afterwards.
If the time you pick falls inside a session you have already logged, a warning appears under the calendar. You can still continue, and AlcoLog may offer a free slot when you save.
# Step 3. Add the drinks
After Continue, the Add Drink screen opens straight away. It is the same form you use during a live session (type, size, ABV, calories, cost and time), so pick your first drink and log it. Each drink carries its own time, which is what makes the timeline and the pacing figures meaningful rather than a lump at one moment.
Logging a drink takes you back to the session overview. From there:
- + Add More Drinks opens the form again for the next one.
- + Another (for example + Another Guinness 🍺) repeats your last drink in one tap, placed a little after it.
- On the Add Drink screen, 💧 Add Water / Soft Drink logs a water in one tap.
If you kept the receipt, the receipt icon at the top right of the Add Drink screen can read the whole round at once (Premium); see how to scan a receipt.
The session end is worked out for you from your last drink, and the overview shows what it settled on, for example Ends 11:30 PM (last drink + 30 min).
# Step 4. Fix anything you got wrong
Tap any drink in the list to change its type, size, cost or time. The screen says so directly: Tap a drink to edit its type, size, cost or time.
To drop a drink you added by mistake, tap the X beside it. AlcoLog asks Remove this drink?; tap Remove.
To change when the session started, tap the date at the top of the overview. Session start opens on the calendar, and moving it moves every drink with it, so the gaps between them stay the same.
# Step 5. Add medication if you took some
Tap Add medication taken during this session under Medication. Your saved medications are listed there: toggle on each one you took, set the time of the dose, then tap Done. The time can be set from 2 hours before the session started until it ended, which is the window in which a dose shows on the session in History. (Medications are set up from the Alerts tab; see how to log medication doses.)
This matters for Sinclair Method users in particular, where the gap between the dose and the first drink is the whole point of the method. A past session records that gap the same way a live one does.
# Step 6. Save
Before you save, the overview shows what this session will change, for example how many units it adds to this week’s total. Tap Save at the top right (it stays greyed out until there is at least one drink). The session lands in your history, counts toward your weekly goal and streaks, and is scored exactly like any other. In History it carries a small clock icon, so you can tell it was added later.
If the session would overlap another one, AlcoLog says Sessions can’t overlap. It suggests adjusting the start time, or adding these drinks to the other session instead: from the History screen if that session is finished, or from the Home screen if it is still in progress. When there is a free slot nearby, it also offers to move your session there instead of making you start over.
If you close the screen first, AlcoLog asks Discard this session? with the note The drinks you have added have not been saved yet. and offers Keep Editing or Discard Session, so a slip of the thumb does not throw away the work.
# What’s next
Once it is saved it behaves like any other session, so reading your drinking history works the same way, and it feeds your AlcoScore alongside everything else. If you forgot a drink or two rather than a whole night, open that session in History and use Add drink instead; how to edit or delete a drink or session shows where.
If you find yourself back-filling often, favorites make each drink a single tap, and automatic sessions from locations can start the session for you next time so there is nothing to remember.