Independent software.
One mission.

Kaiyo Zero is an independent software studio, building tools worth using.

Hi, I'm Chazic.

"I started Kaiyo Zero because I was tired of apps that treat users as a product. Every second app has ads, every third wants your email address, and most of them are bloated with features nobody asked for."

"I wanted to build something different — software that respects the person using it. Simple tools, honestly priced, with nothing hidden and nothing exploitative."

"Kaiyo Notes is the first app. It's the note-taking app I always wanted and couldn't find. More will follow — each one built on the same foundation."

  1. 1 No ads — in any app, ever
  2. 2 No selling your data — it doesn't leave your device
  3. 3 No dark patterns — upgrade prompts are honest and skippable
  4. 4 No feature bloat — if it doesn't belong, it doesn't ship
  5. 5 Freemium done right — the free tier is genuinely useful

Kaiyo (海洋)

Kaiyo is the Japanese word for ocean — vast, deep, and always in motion. The wave motif in our logos is inspired by Hokusai's Great Wave, a symbol of both power and precision. We chose it because great software, like the ocean, should feel both effortless and alive.

More apps are coming.

Kaiyo Notes is the first. Each new app will follow the same rules — and each one will have its own wave.

See our apps →