How to split a bill with friends, step by step

DiviCuenta reads the receipt, adds the extras and shares the total by what each person had. Here are the steps, and below, how each sum is done.

Snap the receipt
Tap “Scan a receipt or bill” and photograph the itemized bill. If you paid by card, add the card slip too: that's where the tip, discounts by law and the charged total come from. Several photos are fine, even overlapping. Or type the items, or just the total.
Check the items
The app shows what it read: each item's name, quantity and price. Tap any of them to fix it. At the top it tells you whether the items add up to the receipt, or how much is missing.
Add the extras
An extra discount (a bank or card promo, as a percentage or an amount), the tip and discounts by law, when they apply. If the receipt or the slip shows them, they're already filled in.
Choose how to split
Add the people and choose whether everyone pays the same or each pays for their own. For their own, tap each plate and mark who had it; if it was shared, mark everyone. Mark who paid, too.
Share the result
Send the summary image with a link on WhatsApp. Everyone sees their part and who to pay, without installing anything. There's also a link for each person, with their amount up front.

How each share is worked out

The same rules for every receipt, in this order:

Subtotal
The items added up, with any discount printed on their own lines.
Discount
The receipt's, plus any extra you add, comes off the subtotal.
Tip
Worked out on the discounted bill.
Discounts by law (when they apply)
If paying by card refunds part of a tax, it comes off the discounted bill, never the tip. It's taken from the slip, or the app works it out with the right percentage.
Card slip total
If you match what the card was charged, the difference of a few cents shows as “Rounding”.
Each person's share
Everyone pays in proportion to what they had. A shared plate is split between the people who had it, anything unassigned between everyone, and cents are allocated so the shares add up to exactly the total.

Ana, Beto and Caro have dinner at a grill, leave a 10% tip and pay by card. Each ordered their own plate and they shared the rest.

An example with numbers
In pesos	Ana	Beto	Caro
What they had	1,981.67	1,821.67	1,796.67
Tip	198.17	182.17	179.67
Discount by law	−146.19	−134.38	−132.54
Pays	2,033.65	1,869.45	1,843.79

Total: $5,746.89 (Subtotal $5,600.00, Tip 10% $560.00, Discount by law −$413.11).