AudioPen: 15 Questions Answered From the Starter Story Interview, With Timestamps
AudioPen turns a spoken ramble into clean writing in the style you pick, and its first version was built in about 12 hours during an online hackathon. In the Starter Story interview, part-time founder Louis reports about $15,000 a month in revenue, around 200,000 users and more than 5,000 paying customers. He credits building in public, a waitlist launched before the product was ready, and sticking to one job done well.
We transcribed the interview with transcribe.so and asked it the same questions we ask every episode. Each answer below is written in our own words and points to who said it and the exact second, so you can check it in the video. All figures are self-reported by the founder and we have not audited them. We are not affiliated with Starter Story, and we sell a transcription service.
| Who is speaking | Role |
|---|---|
| Louis, founder of AudioPen | Answers the questions |
| Starter Story host | Asks the questions, adds his own comments between answers |
What does AudioPen do and how does it make money?
You talk, it transcribes, and it rewrites the result in a writing style you choose (Founder, 02:03; 02:10). People use it to capture ideas, take meeting notes and get past writer's block (Founder, 02:22). A free version gives a taste and a paid version carries the business (Founder, 02:29); paid users get longer recordings, writing styles and integrations (Founder, 09:22).
What numbers does the founder share?
About $15,000 a month in revenue (Founder, 01:50), the same figure the host uses in the intro (Host, 00:30). About 200,000 users, with more than 5,000 paying customers (Founder, 02:24). The interview gives no separate MRR or growth-rate figure.
"When I got my 20th paying customer, I knew I was on to something." (Founder, 00:34)
Who is the founder?
He works full time in his family's offline business, so AudioPen is a side project (Founder, 02:51). He tried no-code tools back in 2015 (Founder, 02:58), came back to building online in 2021 (Founder, 03:04) and built 15 to 20 tools, most of which failed (Founder, 03:11). AudioPen is the first to become a reliable second income (Founder, 03:15).
Where did the idea come from?
In 2022 he started an online hackathon where builders tried to go from idea to revenue within 12 hours (Founder, 03:39). Frustrated with his hit rate, he built four or five tiny tools on his personal site in one week (Founder, 04:12) and shared each one online. One of them drew far more attention than the rest:
"It got a lot more love than I expected it to get on Twitter." (Founder, 04:20)
So he decided to build a full version and put a price on it (Founder, 04:29).
What did the founder build in the first 12 hours, and what kept the app growing after that first version?
The sprint started at noon with the goal of earning at least a dollar by midnight (Founder, 03:57). About 10 hours in, he opened a waitlist (Founder, 06:34), and before the 12 hours were up, early beta testers started paying (Founder, 06:43) even though he had not asked them to (Founder, 06:51). After that first version, he says what kept it growing was focus on one job and steady work over time (Founder, 10:46).
How long did it take to build, and with what?
About 12 hours for the core version (Founder, 01:45). Before building, he collected design inspiration and designed the screens in a design tool (Founder, 06:24; 06:28). Today the web app runs on a no-code builder with a separate backend tool, and the native app comes from another app builder (Founder, 11:30).
Who is the customer?
Individuals: he describes it as a consumer subscription product (Founder, 02:03). He learned who it was for by messaging the people who liked the early tool and asking about their use cases (Founder, 06:17). He admits it met a need he did not know people had (Founder, 07:01).
How did it get from zero to $15,000 a month?
The interview does not give channels in order. The founder names four reasons the launch worked (Founder, 07:01): the product met a real need, he had credibility from building in public, he built hype before the product existed, and a community of fellow builders cheered him on. Beyond that launch, he credits luck plus volume: having built 15 or 20 things before, he was bound to get lucky (Founder, 04:53).
What is the start-over playbook?
Four steps (Founder, 07:46):
- Build a lot of small things for fun that you can shut down without hurting anyone.
- Design before you build, because design sets a product apart and takes longer than expected (Founder, 07:56).
- Build in public, and if people respond, start a quick email list (Founder, 08:23).
- Launch the simplest version that does its job well, then raise the price as you refine it (Founder, 08:23).
He adds a fifth point about tone:
"Don't try to sound like a big company." (Founder, 08:51)
Why does it win?
He was early, before many similar apps existed, and AudioPen does one thing well while rivals spread themselves thin (Founder, 10:28). He also says users tell him they like being part of his journey as an indie builder (Founder, 08:51).
"I think that slow consistency is what has worked for me." (Founder, 10:46)
How is it priced, and why?
$99 a year or $159 for two years (Founder, 02:34). Both plans are non-recurring: users decide whether to renew at the end of the term (Founder, 02:39). His playbook says to keep raising the price as the product improves (Founder, 08:23), but the interview does not explain how he set these amounts or what any past price change did.
What does it cost to run?
The no-code web app builder is about $130 a month, the backend tool about $260 (he does not say per what period), and the native app builder about $300 a year (Founder, 11:30). Email costs about $800 a month and analytics $19 a month (Founder, 11:40). He says API usage is the biggest cost and varies month to month, without a figure. The interview does not discuss ads, people or margins.
What went wrong?
Most of his 15 to 20 earlier tools failed (Founder, 03:11). For AudioPen itself, the risk he names is temptation: he has been pulled toward adjacent markets where other apps were doing well, and chose to stay narrow (Founder, 10:28; 10:46).
What is the founder's advice?
Build many things for fun, expect most to fail, and double down the moment one resonates (Founder, 12:09). The cost of trying is low enough that you might as well build a bunch of things and see what sticks (Founder, 04:36).
"Most of them will fail. It happens to all of us." (Founder, 12:09)
What did the host take away?
His own comment is about focus: an app with a pointy feature, one thing done really well, can differentiate itself from bigger apps (Host, 10:56). Beyond that, his closing words are praise for the 12-hour build rather than a separate lesson.
What to copy
- Run cheap experiments in public. A week of tiny tools, shared as you build them, told him which idea to price before he had invested much.
- Open a waitlist before the product is done. People who sign up early can turn into the first payments, and they did here within the first day.
- Sell a fixed term, not a trap. Non-recurring annual and two-year plans fit a solo, part-time business and buyers who dislike auto-renewal.
More from this series: the voice app founders playbook, every Starter Story episode answered, and our free YouTube transcript tool if you want to run the same questions on any interview.
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Ask anything about the AudioPen interview. Answers come only from the transcript, with the exact second each point is said.