B2C · voice-to-text notes app
How Letterly grows
5 tactics and 8 figures from 1 interview.
letterly.appLetterly is a voice-to-text app that turns recordings into written notes and rewrites. Its founder copied an idea others had already proven and made it much simpler, betting on ease of use over free tools like ChatGPT. He said it reached $250K a month in two years and that he puts a large share of revenue back into ads.
- Letterly's founder chose an idea other apps had already proven, speech to text via AI, after six or seven novel-idea startups failed over 15 years; it reached $250K a month in two years.Letterly
- Letterly reviews every screen for friction in three loops and delays promised features until they are simple; the founder credits this ease of use as the main reason for its success.Letterly
- Early on, Letterly asked customers why they paid instead of using ChatGPT for free; the consistent answer was that it felt easier, which pushed the product toward one-click flows.Letterly
- Letterly lets users start recording from a widget and copy the text with one tap; the founder said one-tap copy is among the most used features.Letterly
- Letterly said it spends roughly $100K-200K a month on ads against $250K monthly revenue; channels and results were not shared.Letterly
Summary written 2026-10-07 from the tactics below. Figures are as founders stated them.
About Letterly
- What it is
- Turns speech into well-written text for notes, messages, emails and posts, with one-tap rewrites and meeting notes.
- Who it's for
- People for whom speaking is easier than typing (speed, thinking style, or difficulty typing)
- Business model
- paid subscription with free trial
- Pricing
- Paid app with a free trial (price not stated)
- Launched
- about 2 years before recording (2023)
- Team
- 10 people
- Outcome
- $250K/month revenue, 20K paid subscribers
As described in the interviews, not independently verified.
Letterly's 5 tactics
Letterly by the numbers
| Metric | Value | Context | Said in |
|---|---|---|---|
| revenue | USD 250K/month approximate | Starter Story 2025-11-241:52 | |
| users | 30K users/month approximate | Monthly active users | Starter Story 2025-11-241:52 |
| paying users | 20K subscribers approximate | Starter Story 2025-11-241:52 | |
| downloads | 150K downloads approximate | Over 2 years since launch | Starter Story 2025-11-241:52 |
| team size | 10 people | Starter Story 2025-11-2411:17 | |
| cost | USD 30K/month approximate | Salaries for a team of 10 | Starter Story 2025-11-2411:17 |
| cost | USD 5,000/month approximate | AI costs (ChatGPT and other models) | Starter Story 2025-11-2411:17 |
| ad spend | USD 100K–200K/month approximate | Garbled in transcript ('about two- $100,000 a month'); likely ~$200K/month | Starter Story 2025-11-2411:17 |
Topics
Interviews
- This simple app makes $250K per month · Starter Story · 2025-11-24