One and ThreeSTUDIO

Independent app studio

We make a few apps, and make them properly.

One and Three is a two-person studio. Our first app, Retro Messenger, is a text-only, end-to-end encrypted messenger for iPhone with a green-screen soul.

On the App Store · iPhone · iOS 17+

Retro Messenger chat in the light paper theme
Retro Messenger group chat in the green-on-black theme

One and Three.

Neo is The One. Trinity means three. Two nicknames from The Matrix that we'd been calling each other for years, and a studio name that was sitting in our living room the whole time.

The story behind the name

01Flagship app

Retro Messenger

Messaging the way it felt before feeds. Plain text, nothing to scroll, and nobody can message you until you say yes.

Everything about Retro Messenger
01
Encrypted on your phone
Message bodies are end-to-end encrypted with Curve25519 and ChaChaPoly before they leave your phone. Your private key stays in the iOS Keychain.
02
Requests, not spam
Find people by username and send a request with a short note. A chat only opens once they accept.
03
Just text
No stickers, no reactions, no feed. One-to-one chats and groups of up to 20, in phosphor green or paper.

Neo

@neo_sync · e2e

Encrypted
  • You: link established
  • Neo: packet received
  • You: copy that. sync at midnight?
  • Neo: confirmed. channel secure
  • iPhone · iOS 17+
  • E2E · Curve25519
  • Groups ≤ 20
  • Light & dark

Say hello.

Support, feedback, or just a note about something you liked. It all lands with the two of us.