Accurate transcription without uploading recordings to a server.
Run Whisper on the iPhone to sell private transcription: LoroNote, $7,591 in 28 days
Running the AI model on the device removes the per-use cost and gives a privacy pitch that cloud apps cannot match.
Figures as shared by the creator · source
From @Alternative_Tour1791 on Reddit · Oct 2026
The Short Version
- What: A solo developer built LoroNote, a speech-to-text app for iPhone and iPad that runs Whisper Large V3 Turbo on the device through his own Core ML engine, with speaker separation on-device too.
- Result: He shared a RevenueCat snapshot: $7,591 revenue over the last 28 days, $1,295 MRR and 258 active subscriptions.
The workflow
Where & With What
What They Did
- 1The moveA solo developer built LoroNote, a speech-to-text app for iPhone and iPad that runs Whisper Large V3 Turbo on the device through his own Core ML engine, with speaker separation on-device too.
- 2Step 2Pick a crowded category with one flaw
- 3Step 3Run the model on-device
- 4ResultHe shared a RevenueCat snapshot: $7,591 revenue over the last 28 days, $1,295 MRR and 258 active subscriptions; he notes the 28-day figure includes lifetime purchases and is not MRR (Reddit, r/AppBusiness, Oct 2026).
Quick Answers
What tools do you need?
Just the platform account.
How much does it cost?
No paid tools needed: this case uses only the platform itself, which is free to join.
Is it allowed?
Follow the platform rules and disclose ads.
Watch out: Self-reported. On-device AI took a lot of work on memory and performance across iPhone models.
Try It Yourself
(Our template, not the creator's prompt.) Write App Store copy for a private, on-device AI app for [task]: a title, subtitle, 5 benefit bullets that lead with privacy, and a line explaining why it can offer a lifetime price.
Your first step
Paste the prompt into your AI assistant and swap the [brackets] for your own niche.
Full write-up & sources
More detail: Because there is no transcription API bill per hour, he can offer lifetime access next to subscriptions.
Source: @Alternative_Tour1791 on Reddit · Oct 2026. Summarised in our own words; figures as shared by the creator or shown on the platform. Updated .
