Helios iPhone early access uses Apple ad hoc distribution. Your iPhone must be registered and included in the signed release before it can install.
Registered-device early access
Install Helios 0.10.175.
Build 199 · iOS 17.0 or later · Profile expires 2027-10-07.
Open this page in Safari on your registered iPhone, then choose Install. If your administrator has not added this phone to this release, complete the registration steps below first.
After confirming Install, leave Helios in the background and wait for its Home Screen icon to finish updating before reopening it. Do not delete Helios to update it. Device registration is required for each iPhone.
Installing with a computer?
Download the signed IPA for the supported desktop installation flow. Downloading the file alone does not install it.
FIRST-TIME SETUP
Register your iPhone.
Have your Helios invitation ready.
Downloading the app does not create or approve an account.
Find your device identifier.
Connect your iPhone by USB to a trusted computer. Unlock it and approve Trust if prompted. In a desktop build with iPhone setup, open My Space → Phone dashboard → Install Helios on iPhone and copy the UDID. That desktop setup flow is still being tested for release.
Give the UDID to your Helios administrator.
They register the phone with Apple and include it in a signed release. Copying the identifier does not register it automatically.
Install the release for your device.
Once your administrator confirms the build is ready, open its verified install link on your iPhone. If iOS asks for Developer Mode, follow the on-device instructions; only you can approve the restart and passcode steps.