You know that feeling when a call goes 40 minutes and you had no idea? Or when you can't figure out how to end it? That's not a character flaw. Your phone was never designed for your brain. Yapper Phone was.
The world's first Health Communications Technology app.
For 150 years, the phone call has been built for the average brain.
70% of young adults feel anxious when the phone rings. One in four UK adults under 35 have never answered a call to their mobile. One in five people worldwide are neurodivergent. The average brain is a myth.
Yapper Phone is the first phone call redesigned for how humans actually think, feel, and communicate.
For the first time in the history of the telephone, both people agree before the call begins. How long. What it's about. When it ends. A shared countdown on both phones — colour-coded from green to orange to red. When time's up, both of you know. No awkward endings. No time blindness. No guilt.
This is bilateral duration negotiation — and no phone on Earth has ever done it.
Brown noise mixed directly into your phone call — and playing system-wide. Soft chimes at intervals you choose, from 10 seconds to 30 minutes. Reduce sensory overload. Think clearly. Stay present. No other phone app on Earth does this — it requires system dialer privileges that Yapper Phone has.
ICE bypass. Lock screen emergency info card with your medical conditions, medications, blood type, and emergency contacts — one tap, no passcode needed. Bidirectional — your emergency contacts can reach you through silent mode too. Available with any active subscription or trial.
A dead phone isn't just an inconvenience. For some people, staying reachable is staying alive.
34 features. 6 call types. This is just the start.
When JPMorgan Chase designed roles for autistic employees, those employees were 90–140% more productive. When environments are built for the most demanding users, everyone performs better. This is the curb-cut effect — and Yapper applies it to the phone call.
Designed for ADHD
Time-bound calls designed for ADHD time blindness? They also rescue every professional trapped on a calendar-wrecking "quick call."
Designed for caregivers
Emergency bypass designed for a diabetic child's caregiver? It gives every parent peace of mind.
Designed for connection
A gentle nudge about friends you haven't called? That serves anyone whose life got too busy to keep up.
You don't need a diagnosis to need a better phone call.
Other ADHD apps need you to remember to open them.
Yapper works because eventually your phone rings.
Mental health apps have a median 15-day retention of 3.9%. Yapper Phone is built into the infrastructure your life already uses.
The Founding 1,000
€67 one-time
This is for the people who see what Yapper Phone is before the world catches up. The ones who know that phone calls needed this twenty years ago. The founding members who make the mission real.
1,000 spots globally. When they're gone, they're gone.
€2.99/mo
Cancel anytime
€19.99/year
€1.67/month · Save 44%
ICE emergency features included with all active subscriptions, active trials, and Yapper Originals.
Gift a month of Yapper Pro to someone you care about. Every launch subscriber gets one free gift to share.
We offer a free lifetime Pro access to 55,000 Finnish Type 1 diabetics — a proof of our Institute's mission and integrity.
A substantial portion of all profits from Yapper Phone funds the Institute for The Study Of Humanity and Maximized Impact — a Finnish registered research association. We build and finance our think tank with our own inventions.
667+ USPTO patent applications filed February 27, 2026. 34 shipping features. Built by one person using Claude at a total cost of ~€14K.
Purpose should pay. Martyrdom kills missions.
NO EXIT · NO INVESTORS · NO CORPORATE CAPTURE · NO MARTYRDOM
No. You can call anyone — Yapper works with any phone number. When you call someone who also has Yapper, you unlock bilateral features like shared countdown timers, duration negotiation, and agenda topics visible on both screens. Calls to non-Yapper numbers still work as normal phone calls with your own timer running.
Yes — Yapper is a full dialer replacement. It handles all your calls, contacts, and call history. You set it as your default phone app during setup. Everything your stock dialer does, Yapper does — plus time-bound calls, focus audio, ICE emergency bypass, and everything else.
A gentle chime plays for both people. The call doesn't cut off — you get a clear signal that the agreed time is up, and either person can end naturally. No awkward "I have to go" needed. The timer gave you both permission to wrap up.
All data stays on your device. Call recordings are stored locally. Analytics are processed on-device. There is no cloud upload without your explicit action. Yapper doesn't sell data, serve ads, or share your information with anyone.
Yapper Phone is Android-only at launch (Google Play and Samsung Galaxy Store). iOS deployment requires Apple to open telephony APIs to third-party apps — something we're actively advocating for through accessibility and regulatory channels.
Yes — ICE Emergency calls, ICE Checkup calls, and the lockscreen emergency info card require an active subscription, an active free trial, or Yapper Originals lifetime access. The 7-day free trial includes all ICE features.
7-day free trial · Cancel anytime · €2.99/month