Handback vs RPN Deck

Couriers deliver to the wrong door more often than anyone admits. Handback helps neighbors return those packages privately, without either person exposing personal details. FOUND A PACKAGE THAT ISN'T YOURS? Photograph the shipping label and package. Handback reads the delivery details and privately matches the parcel to a verified neighbor. You never learn who they are, and they never learn who you are. No account is needed to help return a package. MISSING ONE OF YOUR OWN? Create an account, add your home address, and verify it. If a neighbor reports a package addressed to you, it appears in Updates and Handback can notify you. You can also check a tracking number or your delivery address to see whether a package has already been reported. HAND IT OVER SAFELY The finder proposes a public drop spot or porch pickup and a time window. The recipient receives a private pickup code, and both people confirm when the return is complete. SHARE HANDBACK Share Handback from Home or Account through Messages, WhatsApp, Facebook, or another installed app. A finder can also share a private package link. The link opens the package in Handback when installed and otherwise directs the neighbor to the correct app store. TRUST & SECURITY • Nobody can look up a name, and an address search never shows who lives there. • Only a verified recipient can claim a matched package. • The recipient proves ownership using details from their own order. • Package photos stay private until a claim is approved. • Review signed-in devices and end sessions you no longer recognize. • Use a passkey when supported. • Either person can report or block the other. • USPS mail is refused and directed back to USPS. ACCOUNT Account includes your home address and names, profile photo, badges, notification and appearance settings, Trust Center, passkeys, signed-in devices, Help & Support, Privacy Policy, Terms of Service, sign out, and account deletion. LANGUAGES English, Español, हिन्दी, 简体中文, Filipino, Tiếng Việt. Handback follows your device's language, including notifications and emails. OPTIONAL SUPPORT After a completed return, you may leave an optional one-time tip through the App Store. Tips do not unlock features, create a subscription, or pay the person returning a package. Handback has no ads and does not sell personal information. Names, addresses, package images, device information, and purchase records are handled as described in our privacy policy.

RPN Deck is a reverse Polish calculator built for speed — and for fixing mistakes without starting over. EVERY NUMBER STAYS EDITABLE On most calculators one wrong digit means clearing the lot and typing it again. Here every value stays on screen. Tap a row to correct it in place. Swipe a row away to delete it. Undo steps back through anything you did. RPN, PROPERLY Type a value, press ENTER, type the next one. No parentheses. No equals key. No expression to hold in your head and get wrong three terms later. The stack is unlimited and every level of it stays visible. FAST Four functions and a percent key. TOTAL folds the whole stack into one number in a single press. Nothing is buried in a menu, because there are no menus. THE FULL DECK — a one-time in-app purchase Three ways in, one unlock. The Tape prints every keystroke like a receipt — each entry, each operation, each total — and shares as an image, text, or PDF. Scan points the camera at a receipt so you tap printed amounts straight onto the stack. Voice lets you speak numbers and they land where you'd type them. Family Sharing is supported, so one purchase covers your family group. SIMPLE ON PURPOSE No scientific functions. One surface, and everything on it does something. PRIVATE BY DEFAULT No account. No sign-in. No analytics, no tracking, no advertising. Nothing leaves your phone unless you share it yourself. iPhone, portrait, English.