I built a macOS app that turns rough ideas into perfect AI prompts with one hotkey
I kept losing time rewriting prompts. Every time I switched from ChatGPT to Claude to Gimini, I had to mentally adjust my prompt format. And voice-to-AI? Forget it — my rambling needed serious editing before any LLM could understand me.
So I built Oshn Prompt — a menu bar app that sits quietly until you need it.
How it works:
Select any text anywhere → press Cmd+Shift+I → get an optimized prompt instantly
Or press Cmd+Shift+U to speak your idea — Whisper transcribes, AI polishes
The key insight: different AI models want different prompt structures. Video prompts for Sora need different formatting than image prompts for Midjourney. The app auto-detects your intent and applies the right "skill."
What's inside:
Works system-wide (browser, notes, IDE, anywhere)
Smart Skills for video/image/text prompts
Global instructions for consistent brand voice
Research-backed prompt engineering, not guesswork
Free tier: 50 improvements. Pro: $9.99/mo for unlimited + voice + custom skills.
Also launched a Chrome extension for those who live in the browser.
Would love your feedback. What prompt workflows do you struggle with most?
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