Voice
Talk like you would on the phone. The companion follows up with what a thoughtful friend would ask next.
For seniors
What you've lived through is not behind you. It's the next generation's compass.
A warm, patient companion that listens to your stories and keeps them safe — for your family, and for the people who'll need them tomorrow.
A companion that listens
It feels like talking to someone who has all the time in the world.
Speak, type, or photograph the letters in your drawer. Waterfall asks the right next question, listens patiently, and never argues. You don't perform — you remember.
Type
Prefer writing? Type it out. The same gentle prompts; the same gentle pace.
Photographs of pages
Old letters, journal pages, photo backs. Snap a photo and the words are kept.
Why this is healthy for you
Decades of research on reminiscence and life review confirm it: telling your story is good for you.
Lifts mood and well-being
A meta-analysis of 20 controlled studies found reminiscence significantly improves psychological well-being in older adults — with effects comparable to established psychotherapies.
Bohlmeijer et al., 2007 — Aging & Mental Health
Reduces depression
128 studies on reminiscence and life review showed clinically meaningful reductions in depressive symptoms, plus gains in life satisfaction and sense of integrity.
Pinquart & Forstmeier, 2012 — Aging & Mental Health
Eases loneliness
The U.S. Surgeon General has framed loneliness as a public-health emergency. Telling your story to a patient listener is one of the simple, well-evidenced things that helps.
U.S. Surgeon General Advisory, 2023
For the adult child of a senior
If you're reading this for your mother, your father, your aunt — here is how it works.
You don't have to be there for every recording. You just have to set them up once and check in. Most of the people we hear from say it became something the family looks forward to.
1 · Set them up
Sign up on their behalf, or sit with them and do it together. They sign in once and they're in.
2 · Pick a session
Choose a topic — childhood, the work years, the people they loved. Each session is a few gentle questions, ten to fifteen minutes.
3 · Let them talk
They speak. The companion listens, asks the next question, and transcribes everything.
4 · Keep it forever
You and your family see every story. They're yours. You can download them anytime.
We've done this with people in their 70s, 80s, and 90s. The technology gets out of the way.
The wisdom we keep losing
Around 10,000 American seniors die each day. Each one walks out the door uncopied.
~10,000
U.S. seniors who pass each day. Source: CDC NCHS.
2.1B
People over 60 worldwide by 2050 — doubling from today. Source: UN World Population Prospects, 2022.
~0%
Estimated share of AI training data that is consented, attributable senior wisdom.
Whatever we capture in the next decade is what humanity will have. After that, it is gone. Let's not throw out the old.
What seniors most want from this
Not to be forgotten. To still be useful. To keep teaching.
Most of the seniors we've talked to don't say they want to be famous. They say they want their grandchild to know what they were like at twenty. They say they want their hard-won lessons to land somewhere. They want to be heard once, fully, while they still can. We built this for that.
What you keep, forever
Your story is yours. Always. Without exception.
You decide who sees it
Four levels of consent, each separately yours to give: family-only, training, API, attributed. The default is the most private one.
Anonymised by default
Names and identifying details are removed automatically before any story is used outside your family. Always.
Pull it back at any time
If you ever change your mind, we scrub the recording, the transcript, and every downstream use within 30 days.
Encrypted and audited
Your recordings live encrypted on Google Cloud, with HIPAA-grade controls. Every access is logged.
Cost + get started
90 days free. No credit card. Then plans from $0.
Recording is free forever. The warm AI interviewer is the one premium feature, and you get 90 days of it on us.