Unfair still works on iOS 18 for the main app experience: onboarding, recommendations, library search, dose logging, journal history, reminders, quick actions, settings, and release notes all remain supported on iPhone.
What still works on iOS 18
If your phone is on iOS 18, you can still use the core workflows Unfair ships today:
- complete onboarding and set up your profile
- get personalized recommendations in the `You` tab
- search the supplement library and save favorites
- log doses and review them in Journal
- use local reminder notifications and reminder actions
- open `You`, `Library`, or `Journal` from Home Screen quick actions
- change language, appearance, units, and other app preferences
- read in-app release notes from Settings
That is the supported baseline, not a legacy mode.
For product scope beyond iOS version support, see Platform Scope iOS Only.
Where iOS 18 can feel different
Unfair is actively optimized for newer iOS behavior where Apple exposes newer APIs. That means the app can feel slightly different on iOS 18 without being broken.
The main difference today is Apple Health medication-event handling.
On newer iOS versions, Unfair can read supported medication event data from Apple Health to help reconcile journal history more completely. On iOS 18, that newer medication-event read path is not available, so some entries rely on Unfair's on-device fallback history instead.
What that means in practice:
- a logged dose should still appear in Unfair's Journal
- Apple Health nutrition-linked entries can still sync through HealthKit when permissions allow it
- some medication-style supplement entries may not have the same Health reconciliation behavior you would see on newer iOS versions
- small permission-flow or UI differences between iOS versions are expected
For the newer-path details, see iOS 26 Optimization and HealthKit Permissions.
Before you assume the app is broken
Most iOS 18 reports turn out to be one of a few checks:
- Confirm you are using the latest Unfair build available to you.
- Reopen the app after changing any Apple Health or notification permission.
- Check HealthKit Permissions if profile data, context, or sync looks incomplete.
- Check Health Data Sync if a dose appears in Journal but not where you expected in Apple Health.
- Open `Settings` in Unfair and review your reminders, language, and profile values before assuming state was lost.
- Read the in-app `Releases` screen to see whether the behavior changed in a recent update.
A useful rule of thumb: if a manual dose shows in Unfair's Journal, the app did record the event even if Apple Health behavior looks different.
Signs of a normal iOS 18 limitation
The app may still be behaving correctly if:
- Journal has your manual entry, but Apple Health does not show the same result you expected
- Health-based profile details did not fill in because permission was denied or changed later
- reminder behavior is intact, but the surrounding iOS permission prompts or presentation feels different from screenshots taken on a newer iPhone
- release notes mention newer Health or platform improvements that you do not fully see on iOS 18
These cases usually point to version or permission differences, not to lost on-device data.
When to troubleshoot further
Move to deeper troubleshooting if:
- the app will not open past launch
- a logged dose does not appear in Journal
- reminders are enabled but never fire
- the same missing or incorrect behavior continues after you update Unfair, confirm permissions, and reopen the app
Use Troubleshooting for the next steps.