Tellbird is a Mac app for interviews and calls. It prepares you from your own CV and the company's website, then keeps the answer, your notes and the next step in a small private panel while you talk.
Answering14:32Tell me about a time something broke in production.
At Northwind the checkout started failing for one card network on a Friday. I rolled the release back first, so customers could pay again in twelve minutes. Then I traced it to a timeout we had shortened the week before. We now load test every payment change against each network before it ships.
Accept the invite and Tellbird reads the company, writes the notes and prepares your answers. Here is an example week.
You accept an interview invite from Acme.
Tellbird makes an Acme profile and reads acme.com, scripted pages too.
Company notes appear in the profile.
What Acme does, who it sells to, how it works, and a first answer to why you want to join.
The likely questions are answered.
From your CV, the job post and your own stories, in your words, ready before the call.
A notification offers a five-minute warm-up.
A spoken interviewer asks three questions. Your answers are scored on your Mac for length, filler, hedging, and names or numbers your CV does not mention.
Acme · Frontend engineer
Interview ThursdayReading acme.com
Company notes
Likely questions
Warm-up report
Calendar · now
Interview with Acme accepted
Thursday, 10:00 to 10:45
Tellbird · now
Acme notes are ready
Read from acme.com, 14 pages
Tellbird · now
12 likely questions answered
From your CV and the Acme job post
Tellbird · now
Warm up for Acme?
Five minutes, three spoken questions
export async function retry(pay) {for (let i = 0; i < 3; i++) {const res = await pay();if (res.ok) return res;await wait(2 ** i * 200);}}
Say: It retries a payment up to three times,
point it at a project or a public GitHub link and it writes the walkthrough in your voice.
Hi, I am Ada.
I build payment systems that stay up on the busiest day of the year.
At Northwind I led the checkout team through a full rewrite.
Now I want to bring that to a team moving money across borders.
Thank you for watching.
write a script, let Tellbird tighten it to 60 seconds, and read it on a prompter that follows your voice while it records your face with subtitles.
“Walk me through a decision you made with too little data.”
To fix: name the result in numbers.
from your prepared questions, with a report of what to fix.
When the question lands, a short answer starts appearing in the panel, written from your profile. Questions you prepared for show their answer at once.
Reading with you14:32Tell me about a time something broke in production.
At Northwind the checkout started failing for one card network on a Friday. I rolled the release back first, so customers could pay again in twelve minutes. Then I traced it to a timeout we had shortened the week before. We now load test every payment change against each network before it ships.
The panel as the app draws it, with an example answer. In the app the highlight follows your voice; here it moves as you scroll.
Everything is a key away, and every key can be changed in Settings.
Answer the latest question
Answering14:32Tell me about a time something broke in production.
At Northwind the checkout started failing for one card network on a Friday. I rolled the release back first, so customers could pay again in twelve minutes. Then I traced it to a timeout we had shortened the week before. We now load test every payment change against each network before it ships.
Add the company as a job, and Tellbird keeps notes for every standup and client call: what was decided, what you said you would do, and who owns what. Mark who is talking and the answer is pitched for them. Ask about last week's meeting and it answers from your notes, with any password or key said aloud hidden before anything is kept.
Standup · Tuesday 09:30 · example
What was decided
What you said you would do
Who owns what
Anthropic, OpenAI, Gemini, Groq, Azure, Ollama or your own endpoint for answers. Deepgram, OpenAI or Whisper running on your Mac for transcription. You pay them directly, at their price.
What stays on your MacTellbird server
Nothing sent
Everything in Tellbird for one price. It runs on Macs today; a Windows version is planned after the Mac app ships.
Buying opens soon.
