Does every round need to be equal?
No. A round can contain different drinks and participants. Each person only carries their own order and relevant shared costs.
DrinkSync
How to split drink rounds fairly: 6 situations where an equal split fails
Dividing a total bill by the number of friends only works when everyone orders roughly the same thing and joins every round. Real nights out include different prices, skipped rounds, and late arrivals.
The rule is simple: assign drinks to the person who ordered them, assign shared costs only to their users, and record who advanced the payment separately.
Example: Anna, Bas, Cem, and Daan spend EUR 45.00. An equal split is EUR 11.25 each. Their actual orders produce fair shares of EUR 9.00, EUR 12.00, EUR 18.00, and EUR 6.00.
What happens when someone skips a round?
Leave that person out of the participants for that round. Their earlier and later orders still count normally.
How do you split a taxi or locker?
Add the cost separately and select only the friends who used the taxi, locker, or other shared purchase.