Cobalt

Ship apps from
anywhere.

A dedicated Apple Mac mini M4 you reach from any computer over AnyDesk, with Xcode already installed and full admin rights for everything else. No Mac to buy.

swift buildxcodebuild testxcodebuild archiveTestFlight
Get startedSee how it works

Credits, not subscriptions. Nothing renews.

CobaltApp — build
➜ ~/CobaltApp

CobaltApp

Running
Pre-installedXcode 26Swift 6SwiftUIiOS SimulatorInstrumentsSwift Package Manager
Your Mac, from anywhere

The full Xcode toolchain, on a Mac of your own.

Open a Cobalt Mac and you get the real thing — Xcode with Instruments and the Simulator, on a physical Mac mini M4 that nobody else is using. You work on it over AnyDesk from Windows, Linux, a Mac or a tablet, and install whatever else you need.

  • SwiftUI Previews rendered on the Mac itself
  • The iOS Simulator, running on the Mac itself
  • Archive in Xcode and upload to TestFlight

Scroll to reveal the annotated tour →

CobaltApp — Xcode
struct ContentView: View {
var body: some View {
VStack(spacing: 16) {
Image(systemName: "bolt.fill")
Text("Ship from anywhere")
}
}
}
Build succeeded
1
2
3
  1. 1Project navigator — Your repository, cloned onto the Mac.
  2. 2Live SwiftUI — Previews render on the M4 itself.
  3. 3Build, then ship — Build and run here, then archive for TestFlight.
Sessions

Pick a session. Start building.

A Cobalt Mac is yours for a fixed length of time, paid once in credits. One credit is one euro (or its dollar value at the day's rate), and nothing renews.

Daily

25 credits · €25

A day on the Mac: a fix, a review or a release build.

1 day on a dedicated Mac mini M4

Launch this Mac

Weekly

75 credits · €75

A week for a feature, a beta round or an App Review cycle.

7 days on a dedicated Mac mini M4

Launch this Mac
Lowest cost per day

Monthly

150 credits · €150

A month of Mac for a whole release, at the lowest cost per day.

30 days on a dedicated Mac mini M4

Launch this Mac

Every session comes with Xcode, the Simulator and Instruments installed.

Built for Apple

Built for the Apple toolchain.

A real Mac, the Simulator and TestFlight uploads — without owning a Mac.

Apple M4, on tap

A Mac mini with the M4 chip: 10 CPU cores, 10 GPU cores and 16 GB of unified memory, dedicated to you for the whole session.

10
CPU cores
10
GPU cores
16 GB
Memory

Device Farm

Testing on real iPhones and iPads opens at launch.

TestFlight uploads

Archive in Xcode and upload with your own App Store Connect account. Add Fastlane yourself if you use it.

Xcode installed

Xcode and the Simulator are ready when your Mac is handed over; you have admin rights for the rest.

Yours alone

A physical Mac nobody else uses during your session, reached over AnyDesk's encrypted connection.

Workflow

From order to TestFlight.

Four steps, from ordering a Mac to a build with your testers.

01

Choose a session

Daily, Weekly or Monthly, paid in credits up front.

02

Connect to your Mac

Its AnyDesk ID and password appear in your account; Xcode is installed.

03

Build & test

Run your app in the iOS Simulator in Xcode on your Mac.

04

Ship to TestFlight

Archive in Xcode and upload with your App Store Connect account.

App Experts

Need an extra pair of hands?

Hire verified iOS & macOS engineers for a fix, a review, or a full build. They work on the same Cobalt Macs — you pay in credits.

Opening at launch — we are onboarding the first App Experts now, so the profiles you can browse today are examples.

Browse App ExpertsBecome an App Expert

SwiftUI & UIKit

Interface work, animations, accessibility

App Store submission

Signing, review prep, TestFlight

Performance & crashes

Instruments profiling, memory leaks

Your Mac is one connection away.

Order a Mac mini M4, open Xcode, and ship your next release from anywhere.

Get startedView pricing