# WatchOS
**URL:** https://talk.remobjects.com/t/watchos/34248
**Category:** Fire
**Created:** [October 29, 2026, 3:35pm UTC](https://talk.remobjects.com/t/watchos/34248 "2026-10-29T15:35:47Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@JeremyK](https://talk.remobjects.com/u/JeremyK)
#### Post date: [October 29, 2026, 3:35pm UTC](https://talk.remobjects.com/t/watchos/34248/1 "2026-10-29T15:35:47Z")
Is it still the case we can’t create a watchOS companion app with Fire? I notice there’s a static library option that mentions watchOS, but I have no clue what I’d need to do to be honest, I just noticed [https://elements.docs.remobjects.com/Platforms/Cocoa/ToffeeVsIsland/](https://elements.docs.remobjects.com/Platforms/Cocoa/ToffeeVsIsland/) says it’s not possible.
I’m wondering if I can make the app in Xcode and somehow use this library, but not sure.
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### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [October 29, 2026, 3:37pm UTC](https://talk.remobjects.com/t/watchos/34248/2 "2026-10-29T15:37:58Z")
> [@JeremyK](#):
>
> Is it still the case we can’t create a watchOS companion app with Fire? I notice there’s a static library option that mentions watchOS, but I have no clue what I’d need to do to be honest, I just noticed [https://elements.docs.remobjects.com/Platforms/Cocoa/ToffeeVsIsland/](https://elements.docs.remobjects.com/Platforms/Cocoa/ToffeeVsIsland/) says it’s not possible.
You can, yes. I recently did this for the Weather app (or rather, had CodeBpot do it ;). I think a simple Swift wrapper was needed, but I’ll check.
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### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [October 29, 2026, 3:45pm UTC](https://talk.remobjects.com/t/watchos/34248/3 "2026-10-29T15:45:13Z")
> [@](#):
>
> I checked how we did this for the Weather app, and the recollection about the Swift wrapper was slightly off: **the Watch app itself is built with Elements. Apple Swift is only used for the separate complication extension** , where we use WidgetKit and SwiftUI.
>
> The overall setup is:
>
> - **Elements/Oxygene:** the WatchKit app’s logic, data handling, and interface controllers.
> - **WatchKit storyboard:** the app’s screen layout.
> - **A small Apple Swift target:** the WidgetKit timeline provider and SwiftUI views for complications.
> - **Fire/EBuild:** builds and packages the projects, calling `xcodebuild` for that one Swift target.
>
> We’ve had this accepted through TestFlight/AppStore and running on a physical Watch, including the complications.
>
> The project structure looks roughly like this:
>
> ```plaintext
> iPhone app [Elements]
> └── Watch app bundle [Elements]
> ├── WatchKit runtime extension [Elements/Oxygene]
> └── WidgetKit extension [Apple Swift]
>
> ```
>
> More concretely, the steps were:
>
> 1. **Create the Watch app and its WatchKit extension as Elements projects.**
>
> 2. **Keep the application logic in Elements.**
>
> 3. **Add a small Xcode target if you want modern complications.**
>
> 4. **Let EBuild handle the project dependencies and embedding.**
>
> 5. **Configure signing and versions for the nested bundles.**
>
> 6. **Check the SDK and runtime architectures together.**
>
> One caveat: this app uses the older WatchKit/storyboard UI model, which Apple marks as deprecated. It worked for our app and passed TestFlight processing and App Store approval. A fully SwiftUI-based Watch application would be a different arrangement, with more of the UI hosted in an Apple Swift target.
>
> So yes, a companion Watch app is possible from Fire. For our approach, the Apple Swift portion is confined to the WidgetKit complications; the Watch application itself remains an Elements project.
hth 😉
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### Author:  [@JeremyK](https://talk.remobjects.com/u/JeremyK)
#### Post date: [October 29, 2026, 3:49pm UTC](https://talk.remobjects.com/t/watchos/34248/4 "2026-10-29T15:49:03Z")
Awesome, thanks marc, I shall investigate. I just want to add something because it’s there 😉 but the users may like for my tower visiting app to have something that simply shows some info of a nearby tower or a simple add a visit function. I also thought maybe a similar simple complication may be useful.
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### Author:  [@JeremyK](https://talk.remobjects.com/u/JeremyK)
#### Post date: [October 29, 2026, 4:45pm UTC](https://talk.remobjects.com/t/watchos/34248/5 "2026-10-29T16:45:55Z")
> [@mh](#):
>
> So yes, a companion Watch app is possible from Fire.
Ta da !
Thanks for the pointers. That’s the simulator working with some basic functionality!
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### Author:  [@mh](https://talk.remobjects.com/u/mh)
#### Post date: [October 29, 2026, 7:46pm UTC](https://talk.remobjects.com/t/watchos/34248/6 "2026-10-29T19:46:41Z")
Awsome! happy ringing!