PrintCash with AI
MediumMobile AppFrontierClear niche and buyerAI model/API accessPayments via Stripe
Operator-Reported

AI Voice Dictation and Note-Taking App

Voice dictation, AI note taker and meeting transcription that rewrites speech into structured text.

In plain English

Letterly turns what you say out loud into clean, well-written text. You can talk through an idea, a message or a meeting, and it rewrites it into the format you want. It works on phones and computers. People pay a subscription.

Automation85%
Startup costNot disclosed
Time to first $Not disclosed
Monthly range*$250,000 /mo

~$250K/mo (founder-reported on Starter Story, Nov 2025)

DifficultyMedium
SourceStarter Story - Letterly (Anton) ↗

Operator: Anton

Operator-Reported

A named, real operator ran this and shared results publicly. The figures are their own.

Not disclosed.

The tool stack

RevenueCat ↗
Free up to $2.5k MTR

Mobile subscriptions

 OpenAI API ↗
Pay per token

LLM / vision

 App Store ↗
$99/yr

iOS distribution

Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.

Step-by-step setup

  1. Pick one daily job (capture, transcribe, convert).
  2. AI does the heavy lifting on device or via API.
  3. Subscription after a free trial.
  4. App Store search + organic short-form content.

What's automated vs. the human 15%

The machine does

  • Core AI generation/analysis
  • Billing and onboarding

You still do

  • Product quality and support
  • Distribution and marketing
  • Compliance and edge cases

Overview

Voice dictation, AI note taker and meeting transcription that rewrites speech into structured text.

Operator: Anton. Website: https://letterly.app/

Estimated split: about 85% of the work automated, 15% human.

Realistic income

Anton said on Starter Story that Letterly makes $250,000 a month (Nov 2025). This figure is operator-reported and not independently verified. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live source — numbers change.

Risks

  • Platform fees and review rules.
  • Big apps may add the same feature.
  • Startup cost and time to first dollar are not disclosed.

*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.

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