Interval Contact Lens Reminder

Never overwear your contact lenses again.

Interval is a simple, calming way to remember when it’s time to replace your contacts. At a glance, you’ll always know exactly where you are in your lens cycle — with no clutter, no guesswork, and no aggressive alerts.

Designed for daily, bi-weekly, monthly, and custom lens schedules, Interval helps you stay on track with gentle reminders, widgets, and hands-free Siri support.

WHY INTERVAL

• Replacement countdown
See exactly how many days are left until it’s time to change your lenses.

• Gentle reminders
Get notified right on time — never early and never aggressive.

• Home Screen & Lock Screen widgets
Check your lens status without opening the app.

• Flexible schedules
Daily, bi-weekly, monthly, or custom replacement intervals.

• Siri integration
Ask how many days are left or mark lenses as replaced using your voice.

• Prescription tracking
Scan your lens box or enter prescription details manually.

• Supply tracking
Track remaining lenses and supplies so you know when to restock.

• Vision screening tools
Run simple checks to stay aware of changes between eye exams.

• Accessible by design
Supports Dynamic Type, VoiceOver, and Reduce Motion.

• Private by default
Your data stays on your device and syncs securely with iCloud.

No ads. No subscriptions. Just a better way to take care of your eyes.