An app that feels at home on the device, online or not.
Native macOS apps in Swift, Android apps and installable web apps, built to feel like they belong on the device.
- Loads the user's data from the device
- Saves changes on the device first
- Syncs them when the connection returns
- Reminds the user at the right moment
What changes for your team
Works where your users are
In a basement, on a train or in the field, the app keeps working.
One codebase, several devices
Android and the web share the same code, so a fix reaches everyone at once.
Checked on real screens
Tested at phone and desktop widths before each release.
Our own product in this area
TwinCortex: an AI that sees your screen and acts, within limits.
A native Mac app with 18 tools for reading apps and acting in them. Irreversible clicks need a stated intent first.
See it running
We have built this before
So your version starts from working patterns, not from zero.
- A native macOS household food app in Swift that reads label datesOur own work
How the project runs
CALL
Talk it through
The problem, who has it and what good looks like.
SCOPE
Agree the scope
What is in and what is out, written down for you to approve.
BUILD
Build and review
AI agents do the volume; a senior engineer reads every change.
LIVE
Launch and run
We deploy, monitor and fix. The code and every key are yours.
What it costs
The price is fixed before work starts, and you pay only for what you approved.