FAQ and support

Installation

macOS says “can’t be opened because the developer is not verified”

If you’re on an old version of the app, yes. Recent versions are signed and notarized by Apple, so macOS opens them directly. Download the latest version from efaprojection.com.

Windows SmartScreen blocks the `.exe`

That’s expected: we haven’t purchased a Windows code signing certificate yet. Click More info → Run anyway. It only happens the first time on each machine.

How do I uninstall the app?

macOS: drag EFA Projection from Applications to the Trash. Local data (songs, downloaded media) stays at ~/Library/Application Support/com.efa.projection/. Delete it manually if you want a clean reinstall.
Windows: from Settings → Apps, find EFA Projection and uninstall.

Updates

How do I know which version I have?

In the desktop app, Help → About shows the version number.

The update failed halfway

Close the app, reopen it, and click Install and restart again in the banner. If it fails again, manually download from efaprojection.com and reinstall over the current version — your data is preserved.

Can I disable automatic updates?

Updates never install on their own: we always ask for confirmation with the Install and restart button. If you don’t want to see the banner, you can click Later and it will reappear the next time you open the app.

Compatibility

Which macOS versions are supported?

macOS 10.15 (Catalina) or later, on Apple Silicon and Intel.

Which Windows versions are supported?

Windows 10 and 11 (64-bit).

Does it work on Linux?

Not officially. The app is built with Tauri, so technically it compiles to Linux, but we don’t distribute or support it for now.

Does it work on an old netbook with limited RAM?

Yes, but with limitations: the app uses around 200 MB of RAM under normal use and goes up to ~600 MB when projecting videos. Machines with less than 4 GB of RAM may stutter when changing slides quickly.

Presentations (PPTX)

Why do some PPTX files look different from how they appear in PowerPoint?

PPTX is converted to images using LibreOffice on the server side. LibreOffice covers 95% of cases, but there are advanced effects (animations, non-embedded custom fonts) that may render differently.

Workaround: if you have issues, export the presentation to PDF from PowerPoint and upload the PDF. It’s more predictable.

Are PPTX animations projected?

No. Each slide becomes a static image.

Offline behavior

Do I need internet during the service?

No. Once content is synced, the desktop app runs 100% offline. You only need internet to:

Sync new content from the web panel.
Use the mobile remote control.
Embed YouTube videos (downloaded ones do work offline).

Can I use the app without an account?

No. The app requires an account to sync and to activate your subscription. A free account lets you try it without paying.

Other

Can I use the same account on multiple machines?

Yes. You sign in on each machine and your organization’s content syncs across all of them. Useful for keeping a primary projection machine and a backup.

Is there an iPad / tablet app?

The mobile app runs on iOS and Android. On iPad it works, but it’s designed for remote control, not for projection. To project, use the desktop app on a Mac or PC connected to the projector.

I found a bug — where do I report it?

Email [email protected] with:

What you did to make it happen.
What you expected to happen.
What happened instead.
Operating system and app version (from Help → About).

If it’s critical (you can’t project on Sunday), put “URGENT” in the subject line and we’ll get to it as soon as possible.

Contact

General email: [email protected]