[x3d-public] Castle Model Viewer available on iOS

Michalis Kamburelis michalis.kambi at gmail.com
Sat Sep 13 11:08:40 PDT 2025


Hello everyone,

We're happy to announce that the mobile version of our Castle Model
Viewer is now available for iOS (iPhone, iPad...) and you can get it
right now from the App Store!

Open the link https://apps.apple.com/app/id6752208775 on your
iPhone/iPad, or just search for "Castle Model Viewer" in the AppStore.
We're available in all AppStore regions (including US and EU).

You can open a number of built-in models (in X3D, glTF, IFC JSON, and
other formats we support). You can also open your own models, provided
they are "self-contained". More information about our features, and in
particular about "Opening your own models" and what it means that
"Models must be self-contained" is on our webpage:

https://castle-engine.io/castle-model-viewer-mobile

( BTW if you're on Android, follow this for Google Play or APK download too. )

The application is completely free, also no ads and no tracking, and
it is naturally open-source:
https://github.com/castle-engine/castle-model-viewer-mobile/ . And it
is using our free and open-source Castle Game Engine (
https://castle-engine.io/ ).

In return, we ask that you consider donating to us (
https://www.patreon.com/c/castleengine ) and/or giving us a good
rating on the AppStore :)

Of course, if you have any problems or questions, go ahead and ask.
Various ways of contacting us are on https://castle-engine.io/talk.php
, in particular you're welcome to our forum (
https://forum.castle-engine.io/ ) or submit GitHub issue (
https://github.com/castle-engine/castle-model-viewer-mobile/issues ).
And simply answering to this email obviously also works :)

I'd like to thank Jan Adamec for working on this application, as well
as on a lot of related iOS-specific improvements in Castle Game
Engine. I'd also like to thank a sponsor (who wished to remain
anonymous) for covering our Apple membership fee for 1 year. Much
appreciated.

Regards and have a good weekend,
Michalis



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