Log an Expense by Double Tapping Your iPhone

How It Works

Tap the back of your iPhone twice and say what you bought, like “4.50 coffee”. A card in Waypoint Budget's colours confirms the amount, the category it picked and the payee, and the purchase shows up in Activity dated today. The app never opens.

What you say is read the same way Quick Add reads it, so “4.50 coffee” lands in Dining Out and “32 gas” in Transportation, using the categories you already have. It goes to the budget you last had open in the app, the same as the + button and the widgets. Leave out the amount and nothing is saved.

Set It Up in Three Steps

Add it in the app. Update Waypoint Budget from the App Store if you have not already, then open Profile, Integrations, Double tap to log, and tap Add double tap. That adds a small Shortcut called Log expense to your iPhone.
Pick it under Back Tap. Open the iPhone Settings app, search for Back Tap, tap Double Tap, and choose Log expense under Shortcuts.
Try it. Tap the back of your phone twice and say “4.50 coffee”. The card confirms it, and the purchase is in Activity.

On an iPhone 15 Pro or newer you can put it on the Action button instead: Settings, Action Button, Shortcut, then Log expense. If the phone is locked, it asks for Face ID first.

No Doubles with Bank Sync

If your bank is connected, the same coffee reaches Waypoint Budget again a day or a few later when Bank sync runs. Instead of adding a second row, Bank sync takes over the one you logged when the amount and date line up: an amount with cents, within a few days, with one clear match. You keep the category and payee you said, and the transaction gains the bank's record underneath it.

Whole-dollar amounts are left alone on purpose: a $20 you logged and a $20 at the bank are too easy to confuse with a different purchase, and a double you can delete beats two real purchases merged into one. The same matching already covers anything you type into Quick Add, so Bank sync members can keep logging the small stuff themselves.

Log the small stuff without opening the app

Get the Waypoint Budget iPhone app and turn on Double tap to log under Profile, Integrations.

Get the App

Free plan available. iPhone only for now.

Got it wrong?

Said the wrong amount, or logged the same coffee twice? Within 15 minutes, say “Hey Siri, undo my last expense in Waypoint” and what you logged from that phone in the last 15 minutes is removed. After that, open the app and delete it from Activity like any other transaction.

Frequently Asked Questions

Not yet. Back Tap is built into iOS, and the Android app does not have an equivalent today. On Android, the fastest way to log a purchase is the + button in the app, which opens Quick Add; hold it to speak instead of typing.

None in particular. Double tap to log is included on every plan, Free included. It needs the Waypoint Budget iPhone app, version 1.4.2 or newer, on iOS 17 or newer.