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WhywebuiltCleft

We’re neurodivergent founders who got tired of being afterthoughts in product design.

Cleft is a passion project with a purpose. Alongside Amber and our other products, we build tools for disabled people. By us, for us.

Traditional note-taking failed us. Brilliant insights during walks or conversations would vanish before we could capture them. Every voice app sent audio to the cloud, leaving our most personal ideas exposed.

Cleft was built around one insight: the real problem is capture, not organization.

We’re not building another second brain. We’re solving what happens before organization. That two-second window between having a thought and losing it forever. Voice-first, privacy-first, built for brains that move faster than fingers can type.

Our mission

We build products where people feel like they belong and that help our users gain confidence in their own thoughts.

Meet the founders

We built Cleft because we needed it. Now 10,000+ people have joined the journey.

Portrait of Justin Mitchell, Co-Founder of Cleft

Justin Mitchell

Co-Founder

I want every verbal thinker to feel the confidence that comes from knowing their thoughts are captured and valued.
Portrait of Jonathan Cosgrove, Co-Founder of Cleft

Jonathan Cosgrove

Co-Founder

I want everyone to think freely without fear. No surveillance, no judgment, no barriers.

Together: “We’re building a future where different minds are celebrated, not marginalized. Where privacy is a right, not a luxury.”

What we believe

Your thoughts are yours

Your inner monologue shouldn't be someone else's training data. We chose on-device AI because privacy is a conviction, not a feature toggle.

Capture beats organization

The world doesn't need another knowledge graph. It needs fewer lost ideas. We'll always optimize for speed-to-capture over taxonomy.

Edge cases come first

We build a house people can walk into, roll into, or fly into. When you design for edge cases first, everybody benefits.

Artisan software

We're not scaling to billions. We're building beautiful, thoughtful software for people who appreciate quality over quantity. One thing, done exceptionally well.

How we build

A sidequest with a purpose

Cleft is bootstrapped and customer-funded. Our goal is to build a sustainable business, not chase hypergrowth or an exit. We run Cleft alongside Amber and our other ventures because we believe in building thoughtful products that solve real problems for real people.

Built in Ireland, shaped by thousands of real user conversations. Every email gets read by Jonathan or Justin personally.

Get in touch

Questions, feedback, or just want to say hi? Every message gets read.

hello@cleftnotes.com

See what all the fuss is about.

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