● Your AI phone assistant
Keller phones the restaurant, the dentist, the airline — waits through the hold music, talks to the human, and texts you the confirmation. You never dial again.
Free plan · No credit card · Works with any business with a phone number
Luigi's Trattoria
+1 (415) 555-0164
Hi! I'm calling to book a table for two this Friday evening — around 7:30 if you have it.
Friday… 7:30 is full, but I can do 7:45. That work?
7:45 is perfect. Under the name Alex, please.
Done — table for two, Friday 7:45. See you then!
The 24-minute errand
Finding the number. Calling during their business hours. The hold music. The transfer. The "let me check"… You know the loop.
Today
avg. time per errand call — 24 min
With Keller
your part — 20 seconds
What Keller handles
bookings
Tables, haircuts, cleanings, oil changes. Keller negotiates times against your calendar and books the slot.
customer service
Refunds, cancellations, billing disputes, "why is my bill $40 higher". Keller stays polite, firm, and on the line.
research
"Call five plumbers, get quotes for a water heater swap." Keller phones them all and hands you a comparison.
Inside the app
+1 (415) 555-0142 · listening in
…a morning cleaning for a new patient — do you have anything next week?
Tuesday 9:30 or Thursday 8:15 — both with Dr. Nguyen.
Thursday 8:15 works. It's Delta Dental PPO — shall I read the member ID?
How it works
01 · your message
02 · keller preps
03 · the call
04 · the receipt
Type it or say it, like you'd brief a sharp assistant. Context, constraints, how hard to push — anything goes.
It finds the right number and department, pulls the details you've shared — account numbers, insurance, preferences — and plans a goal with fallbacks.
Keller dials, survives the phone tree, talks to the human, negotiates. Listen live, whisper instructions, or take over any second.
Confirmation numbers, agreed details, full recording and transcript. Calendar events and reminders — already handled.
Who runs on Keller
Busy parents
Pediatricians, schools, birthday venues, the plumber — the calls that only happen 9-to-5, when you're also working 9-to-5.
"Keller called three pediatric dentists during my Monday standup and booked the only Saturday slot in the neighborhood. This app is a co-parent."
Maya R.
two kids, zero free daytime hours
"Our HVAC died on a Friday. Keller got quotes from four companies while I dealt with the actual children. Saved $600 by comparing."
Dan K.
household COO (self-appointed)
"It rescheduled swim class, disputed a double charge, and booked a birthday party venue. In one afternoon. I did none of it."
Priya S.
recovering family secretary
"The school office only answers 8:00–8:20 am. Keller now owns that window. I have my mornings back."
Tom W.
dad of three
Founders & freelancers
Every 25-minute call is a broken flow state. Keller takes the calls; you keep the focus block.
"I calculated it: 11 hours a month on vendor and bank calls. Keller does them all now. It's the highest-ROI subscription I have."
Jules M.
solo founder
"Insurance pre-authorizations used to eat my Fridays. Keller sits in the queue, reads the codes, and I get a transcript. Unreal."
Dr. Elena V.
private practice owner
"Negotiated my internet bill down $35/mo. It mentioned the competitor's promo I never would've known about."
Sam T.
freelance designer
"I run a food truck. Keller confirms my supplier orders every morning at 7 while I'm prepping. It's staff I don't have to hire."
Marco D.
owner, La Ruta
Call-anxious
If you'd rather email, wait, or just not — Keller makes the call so the anxiety never starts.
"I have genuine phone anxiety. I've put off medical appointments for months because of one call. Keller removed that wall from my life."
Alex P.
finally saw the dermatologist
"Watching the live transcript while Keller argued my parking ticket was the most cathartic thing I've done all year."
Nora F.
ticket dismissed, by the way
"As someone with a stutter, phone calls are exhausting. Keller says exactly what I type. It's accessibility tech, honestly."
Ben H.
writes better than he dials
"English is my third language and phone menus terrify me. Keller speaks for me and translates the whole call after."
Yuki N.
new in town
Pricing
Every plan includes recordings, transcripts, calendar sync, and Keller introducing itself honestly on every call. Cancel anytime — Keller will even make that call.
Try it on your next errand
5 calls / month
For households that hate phones
40 calls / month
For people who'd hire an assistant
150 calls / month
Trust & privacy
Every call opens the same way: it's an AI assistant, calling on your behalf, with your permission. No pretending to be human — businesses talk to Keller because it's straight with them.
"Hi — I'm Keller, an AI assistant calling on behalf of Alex, a customer of yours. Do you have a quick minute?"
"Sure, how can I help?"
Account numbers, insurance IDs, dates of birth — encrypted at rest, shared on a call only when the task needs it, never sold, never used to train models.
Full recording and transcript for every call, kept as long as you want and deleted when you say so. If there's ever a dispute, you have the tape.
Listen live and jump in mid-sentence. Keller hands you the call and stays quiet.
Any payment or binding commitment pings your phone for explicit approval first.
Keller calls businesses you ask it to call. No robocalls, no spam, no outbound sales. Ever.
FAQ
Yes — always. Keller introduces itself as an AI assistant calling on your behalf in its first sentence. In practice, front desks love it: Keller is polite, knows exactly what it needs, and never calls to chat.
Keller pauses gracefully ("let me check that") and pings your phone. Answer with one tap or a quick text and the call continues. If you're unreachable, it arranges a callback rather than guessing.
Keller retries on a smart schedule — right at opening time, after lunch rushes — and texts you progress. If a business only does callbacks, Keller waits for the callback too.
Not without you. Anything involving a payment, deposit, or binding commitment triggers an approval request on your phone with the exact amount and terms. You approve, Keller proceeds.
Keller currently makes calls in English and Spanish, with more on the way — and it can translate the transcript back to whatever language you prefer to read.
No. Your calls, recordings, and personal details are never used for training and never sold. Delete a call and it's gone from our servers within 30 days, backups included.
Last call
One sentence from you — Keller handles the call, the hold, and the details, then texts you the confirmation.
Free plan · No credit card · First booking tonight