Aviation Helper

22. SplitFlaps - splitting trip expenses

Licensing note: SplitFlaps is a toolbox tool. If it is not enabled for your club, no new lists can be created - existing lists remain fully usable until they are wound up.

On a fly-out, different people pay all over the place: one the landing fees, one the lunch, one the coffee round. SplitFlaps collects these outlays in a shared list, offsets everything against each other at the end and shows every person exactly: You pay X to Y. The app never moves any money - you pay by TWINT or cash as before, SplitFlaps only tells you who pays whom.

Creating a list

Open the toolbox and in it SplitFlaps, then New expense list. Give it a name (e.g. "Fly-out Alsace"), choose the settlement currency and the travel companions from the member list. You are part of the list automatically. Everyone added receives a push notification and sees the list at the top of their dashboard from then on.

Expense_Card_Image

Whoever travels as a couple gets 2 shares from the creator (in the list's detail view, plus and minus buttons next to the name) - this way partners and guests pay their part without being listed themselves. Companions can be added later; removing works only as long as the person has neither paid anything nor shares any expense.

If the creator cannot join after all, they hand over the administration to a companion (shield icon next to the name in the participant list). That person can then manage participants, settle and close - the creator keeps their rights nonetheless and can take the administration back at any time.

Recording expenses

The dashboard card has Add expense: type the amount, tap currency and category, done. The currency remembers your last choice - in France, EUR is preselected after the first entry. A note ("Lunch Colmar") helps later.

Expense_Entry_Image

By default, everyone is in. Whoever missed an expense - someone skipped dinner - is deselected with one tap and pays nothing for it. "Paid by" is set to you; if someone else paid and you are just recording, pick that person.

Everybody can edit and delete their own expenses, the creator all of them - as long as the list is open.

Settling

When the trip is over, the creator presses Settle. If the list contains expenses in foreign currencies, he confirms the exchange rate into the settlement currency - payments are always created in a single currency, since TWINT transfers francs anyway.

The rate comes pre-suggested: the app fetches the current ECB reference rate and shows source, rate date and fetch time below the fields (on weekends the Friday rate applies). Taking or adjusting it remains your decision - the reference rate is not a card or TWINT rate. If you take the suggestion unchanged, the source is also recorded on the settled list; if no suggestion is available right now, you enter the rate manually as before.

The app offsets all expenses and shares against each other and produces the smallest possible number of transfers - with four people at most three. All participants receive a personal push notification with their result: "You pay 61.02 CHF to Peter Beispiel" or "You receive 111.94 CHF".

If a receipt is still missing, the creator can reopen the list as long as nobody has ticked off a payment yet - the calculated payments are discarded and recalculated after adding the expense.

Paying and ticking off

After settling, the card shows your payment at the top - with the recipient's TWINT number, if it is stored in their profile. Transfer the amount and tap Mark as paid. The recipient gets a push notification that the money is on its way.

Expense_Settled_Image

Whoever has not paid after a week is reminded once by push. Once all payments are ticked off, the list closes itself and disappears from the dashboard; the creator can also close it manually. Closed lists remain visible as a record in the archive of the SplitFlaps page and are removed automatically after two years.

Notifications

SplitFlaps notifies you by push when you are added to a list, when it was settled (with your personal result), when someone ticks off a payment to you, and once about open payments. Each of these notification types can be switched off individually on the notifications page. Individual recorded expenses deliberately trigger no notification - the total is always on the card.