LensLeft: Contact Lens Tracker

Remember when you opened your lenses and when you planned to replace them.

LensLeft is a simple contact lens reminder for iPhone. Set the replacement schedule you follow, then keep track of your left and right lenses independently.

YOUR LENSES, AT A GLANCE See opening dates, planned replacement dates, days remaining, and overdue schedules.

REMINDERS THAT FIT YOUR DAY Choose a reminder time. Turn on notifications for the day before or the replacement day, with an optional one-time reminder the next day if you have not recorded a replacement.

A FRESH START IN A TAP Record a fresh pair or replace one eye. Review your replacement history and undo the latest replacement if you made a mistake.

KEEP TRACK OF SPARES Count unopened lenses separately for each eye. Replacements update your stock, and an optional low-stock notification reminds you to check your supply.

HOME SCREEN WIDGETS Small and medium widgets show your schedule without opening the app.

OPTIONAL LENSLEFT PRO Unlock Pro with a one-time lifetime purchase. Automatically sync replacement schedules, stock and history using your private iCloud account. Save and restore separate manual backups through Files. Keep a separate local lens information card for each eye. Lens cards, prescription values and notes are not automatically synced. Filter detailed replacement history by eye and date, export it as CSV, and remove banner ads.

Pro is optional. Basic lens tracking, reminders, stock, standard history, and widgets remain free. iCloud sync is optional and needs the same iCloud account, internet and available storage. It is not instant. Manual backup files do not update automatically. Restore Purchases supports access with the Apple Account used to purchase Pro. The local App Store price is shown before purchase. No subscription.

TEN LANGUAGES Automatically follows your supported iPhone language: English, French, Spanish, Italian, Polish, Portuguese, German, Dutch, Japanese, and Turkish.

SIMPLE AND PRIVATE No LensLeft account. Lens records are saved locally and shared with the LensLeft widget. Optional Pro sync stores replacement schedules, stock and history in your private Apple iCloud database. Lens cards, prescription reference values and notes stay on each device and are excluded from automatic sync and device backups. LensLeft does not send them to a developer server. The free version includes banner advertising. Exported backup files may contain prescription reference values and are not encrypted by LensLeft; protect files and choose where you save or share them.

LensLeft is a reminder tool, not medical advice. Dates follow the schedule you enter. Follow your eye-care professional's and lens manufacturer's instructions. Notifications require permission and are subject to your iPhone's notification and Focus settings. Widget refresh timing is managed by iOS.

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