Think it.
Post it. Everywhere.
Transform bullet points, voice notes, and widget inputs into AI-polished thoughts — then publish to X, LinkedIn, Threads, Instagram & more with one tap.
★★★★★
5.0 on the App Store
Transform bullet points, voice notes, and widget inputs into AI-polished thoughts — then publish to X, LinkedIn, Threads, Instagram & more with one tap.
What people are saying
“I capture half-formed ideas during my commute and Lightbulb turns them into proper LinkedIn posts by the time I sit down at my desk.”
Marcus T.
Startup Founder
“Finally an app that doesn't make me stare at a blank screen. I jot a few bullets and the AI does the rest — it actually sounds like me.”
Priya S.
Content Creator
“The widget is a game changer. I pin my best thought of the day and it reminds me to post before I forget.”
James L.
Product Manager
“I post on X, LinkedIn, and WhatsApp daily. Lightbulb is the first tool that handles all three without me rewriting everything.”
Aisha K.
Marketing Lead
“I capture half-formed ideas during my commute and Lightbulb turns them into proper LinkedIn posts by the time I sit down at my desk.”
Marcus T.
Startup Founder
“Finally an app that doesn't make me stare at a blank screen. I jot a few bullets and the AI does the rest — it actually sounds like me.”
Priya S.
Content Creator
“The widget is a game changer. I pin my best thought of the day and it reminds me to post before I forget.”
James L.
Product Manager
“I post on X, LinkedIn, and WhatsApp daily. Lightbulb is the first tool that handles all three without me rewriting everything.”
Aisha K.
Marketing Lead
“My engagement went up because I'm posting more consistently. I never run out of content — I just capture and publish.”
David R.
Freelance Consultant
“Voice note → polished post in under a minute. I use it while walking my dog and schedule to LinkedIn before breakfast.”
Sophie M.
Personal Brand Coach
“The platform-specific formatting is what sold me. Instagram captions are genuinely different from my X threads — not just copied.”
Ryan C.
Social Media Manager
“I recommended Lightbulb to my whole team. We capture meeting insights and repurpose them into thought-leadership posts the same day.”
Lena W.
Head of Growth
“My engagement went up because I'm posting more consistently. I never run out of content — I just capture and publish.”
David R.
Freelance Consultant
“Voice note → polished post in under a minute. I use it while walking my dog and schedule to LinkedIn before breakfast.”
Sophie M.
Personal Brand Coach
“The platform-specific formatting is what sold me. Instagram captions are genuinely different from my X threads — not just copied.”
Ryan C.
Social Media Manager
“I recommended Lightbulb to my whole team. We capture meeting insights and repurpose them into thought-leadership posts the same day.”
Lena W.
Head of Growth
From a rough bullet point to a platform-perfect post — Lightbulb handles the whole journey so you never lose a good idea.
Free to download · iOS 17+
Log a bullet point, a voice memo, or a raw idea. Lightbulb's AI turns it into a polished thought ready to publish. No rewriting, no formatting — just capture and let AI do the rest.
X threads, LinkedIn posts, Instagram captions, WhatsApp updates — each platform gets content tailored to its format and audience. Character limits, hashtags, and tone handled automatically.
Deep-link directly into each app or copy with one tap. Text-based (X, Threads), image-based (Instagram, LinkedIn), and message-based (WhatsApp, Line) — your full social presence from a single note.
Pin any thought to the Lightbulb widget and see it every time you unlock your phone. Tap to open, edit, or publish straight from the Home Screen — no app switching required.
Free on iOS. Jot a thought, get a polished post for X, LinkedIn, Instagram, WhatsApp, and more — in seconds.
