Both tracks · Cloud, web and apps

Desktop and iOS app development

Apps that install cleanly, update quietly and handle the awkward edges.

Overview

ByteKnot Labs builds desktop applications for Windows, macOS and Linux and native apps for iPhone and iPad, including software that talks to USB devices, cameras, video pipelines, laptop firmware and Apple's device protocols. Mac apps are native Swift and SwiftUI, sharing code with iPhone and iPad versions where there are any, and are signed and notarised for direct download or the Mac App Store. ByteMirror and ByteLoader run on Windows, ByteKeys on Linux and ByteViewer on iOS. All four are our own products, so you can install them today and judge the installers, updates and support for yourself.

Windows · macOS · Linux · iPhone and iPad

You probably need this if

Your hardware product needs a companion app that does not embarrass it.
Your device's control app only runs on Windows, and Mac and Linux users get nothing.
Field teams need an iPad app that works offline and syncs later.
A device workflow is still done by hand on a Windows PC.
The App Store rejected your app and you need another route.

Approach

How we build it.

01
Platform edges first
Installers, code signing, auto-update, USB and device protocols are where app projects slip. We have already solved them for our own products.
02
Small and native
Rust and Tauri for small, fast apps on Windows and macOS. Python and Qt on Linux, with a small system service where the hardware needs one. Swift and SwiftUI on iPhone, iPad and Mac, with no unnecessary dependencies.
03
Releases you can trust
Every build comes from a tagged commit through CI, signed, versioned and reproducible.
04
Distribution that fits
The App Store, the Mac App Store and TestFlight, signed and notarised Mac downloads, signed Windows installers, .deb packages and AppImages for Linux, your own update channel, or GitHub releases and sideloading when the store is not an option.

Deliverables

What you get.

Windows, macOS and Linux desktop apps in Rust and Tauri, Python and Qt, or native code
Native Mac apps in Swift and SwiftUI, signed with your Developer ID and notarised
iOS and iPadOS apps in Swift and SwiftUI, with widgets and Shortcuts
USB, network and device-protocol integration
Hardware control through kernel and firmware interfaces
Video, audio and hardware-accelerated media pipelines
Installers, code signing, auto-update and crash reporting
Linux packaging: .deb, AppImage and a system service where hardware needs one
Distribution through the App Store, the Mac App Store, GitHub releases or your own channel

Stack

What we build it with.

Chosen per project, benchmarked where it matters, and all of it something your team can run after us.

Swift 6
SwiftUI
WidgetKit
WKWebView
Rust
Tauri 2
Python
Qt
Windows
macOS signing and notarisation
Linux packaging (.deb, AppImage)
H.264 / H.265 hardware decoding
GitHub Actions

Why we use each one

Typical builds

What this looks like in practice.

Hardware companion app
Set-up, firmware updates and diagnostics for a device you sell.
Mac and Linux versions
The control app your hardware ships with on Windows, rebuilt natively for the people on a Mac or running Linux.
Field-team iPad app
Offline-first forms, photos and sync for people away from a desk.
Device automation tool
A Windows app that replaces a manual, error-prone device workflow.
Kiosk app
A locked-down, single-purpose iPad app for a counter or a showroom.

Process

Discover, then Design, then Build, then Launch and hand over. A working build every week, on a staging environment in your cloud.

How a project runs

Terms

Code in your GitHub, infrastructure in your cloud, nothing trained on your data, and everything yours when we leave.

Read the terms

FAQ

Desktop and iOS apps: questions

Last reviewed 18 October 2026

Which desktop platforms do you build for?

Windows, macOS and Linux. We package each one properly: signed Windows installers with automatic updates, Mac apps signed and notarised for direct download or the Mac App Store, and .deb packages and AppImages for Linux. ByteMirror and ByteLoader run on Windows and ByteKeys on Linux.

Do you build macOS apps?

Yes. We build native Mac apps in Swift and SwiftUI, often sharing code with an iPhone or iPad version, and cross-platform desktop apps in Tauri that run on macOS, Windows and Linux from one codebase. Builds are signed with your Developer ID and notarised by Apple, for direct download or the Mac App Store.

Do you build Android apps?

Our shipped products run on Windows, Linux and iOS, and that is where we are strongest. For Android, ask and we will tell you honestly whether we are the right fit.

Should this be a desktop app or a web app?

A web app, unless it needs something a browser cannot give it: USB or other hardware access, heavy local processing, offline work, or a place in the system tray. Many products are both: a web app for most users and a small desktop app for the hardware side.

How long does a desktop or iOS app take?

The hardware, the platforms and the distribution route move the date more than the number of screens. We agree scope and a date before work starts, and you install a working build every week.

Who owns the signing certificates and store accounts?

You do. Code-signing certificates, the Apple Developer account and any store listings are set up in your organisation's name, and the build pipeline signs from there.

Can you handle App Store submission?

Yes, including review guidelines, signing and TestFlight. Where the App Store is not an option, as with ByteViewer, we set up distribution through GitHub releases and sideloading.

Why Rust and Tauri for desktop apps?

Tauri apps use the operating system's own web view instead of bundling a browser, so installers stay small and memory use stays low, and the interface is quick to build and restyle. Where an app needs deeper Windows, macOS or Linux integration, we drop to native code.