For buyers
Native apps for Apple platforms, in English and Welsh from the start
Async Digital Ltd Cardiff, UK
Async Digital Ltd builds native apps for iPhone, iPad, and Mac. Its director, Rob Nash, is a senior iOS engineer with fifteen years shipping native apps. He leads every project and answers for everything that ships. AI coding agents do much of the drafting. Rob decides what’s trusted.
What Async Digital builds
- Native apps for iPhone, iPad, and Mac, written in Swift and SwiftUI.
- Bilingual from the first build. The app remembers each user’s choice of language and handles Welsh plural forms in its string catalogue. Your translators supply the Welsh text, and the app is built to hold it.
- On-device search and transcription, for data that shouldn’t leave the device.
- Release to the App Store. Support after launch on terms agreed in the contract.
How the work is done
Rob works with AI coding agents. They draft code, tests, and documentation. Their work then goes through automated tests and a set of review agents that enforce the project’s rules, and Rob reviews what they report before anything ships.
The method isn’t a secret. Seen to Fail’s source code and its record of how each of its checks was tested are both public, so you can see how work is checked here before you commission any.
Work you can look at
- Audient, on the Mac App Store. It transcribes and searches audio and video with on-device AI. Its interface is in English and Welsh.
- Seen to Fail, a public record of whether each automated check has ever been seen to catch a planted defect. An AI coding agent built it under Rob’s direction.
- Iris and Quill, an open-source Swift package and command-line tool, both public on GitHub.
- Mastering the AI Coworker, a book on running AI coding agents in a one-person studio.
- Rob’s work history is on the CV ↗.
The company
- Async Digital Ltd, registered in England and Wales, company number 16950485. Incorporated in January 2026.
- Registered with the Information Commissioner’s Office, ZC134261.
- Written policies on ethical employment, whistleblowing, and equality, diversity and inclusion. Copies on request.
- Contact: info@async-digital.com