Public beta
Try Herald before it's on the App Store
Herald is in public beta. Anyone can try it now, free, through Apple's TestFlight app, and tell us what works and what doesn't.
Herald Plus is free while you test. Keep your usual way of recording seizures alongside Herald for now.
Join the beta
Open this page on your iPhone, iPad, Mac or Apple Vision Pro, then tap the button. TestFlight opens and installs Herald.
Opens Herald's page in Apple's TestFlight: testflight.apple.com/join/PWe56Q4c
On a computer: scan this with your iPhone's camera to open the beta there.
How to join
Get TestFlight
Install Apple's free TestFlight app from the App Store, on each device you'd like Herald on.
Open the link
Tap Join the beta in TestFlight on that device, then Accept and Install in TestFlight.
Open Herald
Herald starts with its welcome. TestFlight keeps it up to date as new versions arrive.
For Apple Watch: open TestFlight on your iPhone, choose Herald, and install the Watch app from there.
Where Herald runs
- iPhoneiOS 26 or later
- iPadiPadOS 26 or later
- Apple WatchwatchOS 26 or later, with Herald on your iPhone
- MacmacOS 26 or later
- Apple Vision ProvisionOS 26 or later
In English, Spanish, French, German, Italian, Dutch, Portuguese and Norwegian, following your device's language.
Good to know
Is it free?
Yes. Herald Plus is free while you test, and nothing you choose in TestFlight is charged. A Plus plan in the beta renews once a day, up to six times, then stops; choose it again if you like. None of it carries over to the App Store.
What does the beta share?
Apple's TestFlight sends us crash reports, how often Herald is opened, and any feedback you choose to send. When you join with this link, we don't see your name or email unless you write to us. Your log stays on your devices and in your own iCloud, as always. The privacy policy has the details.
How do I tell you something?
Take a screenshot in Herald and tap Share Beta Feedback, or write to support@heraldjournal.app. A screenshot shows what's on your screen, so use made-up entries or describe it in words if it's your own log.
How long does a beta version last?
Each version works for 90 days. TestFlight installs newer ones as they come, and Herald keeps your log through each update.
Is Herald safe to rely on?
It's a beta, so things can go wrong. Keep your usual way of recording seizures, and don't make the heads-up your only way to reach people. Herald isn't an emergency service and never calls anyone. Talk with your doctor before changing your care.