The complete picture

Every feature, in detail

What's This Mail is the most complete mail-safety app for older adults — combining on-device AI explanation, multilingual scam detection, one-tap family help, and full read-aloud accessibility, with nothing ever leaving the phone. Here is everything it does.

Read & understand

Turn any letter into a plain-English answer

Photograph a letter and the app reads it and explains it — entirely on your device.

Scam & fraud protection

Catch the scams that target older adults

Purpose-built to recognize elder-fraud tactics and point you to real help.

Family & emergency help

Help is one tap away

Connect a trusted relative so no one has to decide alone.

Accessibility

Designed senior-first, not retrofitted

Large, clear, and readable — by voice or by eye.

Languages

Speaks the languages families use

For households where English isn’t the only language at the kitchen table.

Stay organized

Never lose track of a bill or a deadline

A private, searchable record of every letter — and reminders so nothing slips.

Privacy & control

Private by design — not by promise

The strongest privacy posture in its category, because nothing leaves the phone.

Platforms

iPhone & Android, side by side

Feature parity for the things that matter most to seniors and their families.

CapabilityiOSAndroid
Take a photo / import / paste text
On-device OCRApple VisionML Kit
On-device generative AIQwen 2.5 (MLX)Gemini Nano (AICore)*
Deterministic safe fallback
Read aloud, large text, high contrast
One-tap call / text family
Searchable archive & bill reminders
Home-screen widget
Siri shortcuts & Spotlight
Minimum OSiOS 17Android 12

*Gemini Nano runs on AICore-capable Android phones (e.g. Pixel 8 and newer, Galaxy S24 and newer). Other phones use the private on-device rules engine — still fully private, just without generative phrasing.

See it on your own mail

Free to start. No account. Your data stays on your device.