LensTime: Contact Lens Tracker

Track when to change your monthly or biweekly contacts, log left and right separately, and keep your full prescription history. No ads, no subscription, no account.

Contact lenses don't come with a memory. LensTime does.

If you've ever stared at a lens and thought "wait, when did I put these in?", LensTime is for you. It quietly counts down the days for each eye and reminds you every single day, if that is what it takes, until you actually change them.

No ads. No subscription. No account. Just a reminder that works.

TWO PROBLEMS, SOLVED

1. "How long have I been wearing these?" Monthly and biweekly lenses expire on a schedule, no matter how often you wear them. LensTime tracks the days for you, so you stop guessing and stop wearing lenses past their time.

2. "Did my numbers change? Did I have astigmatism?" Nobody remembers their old prescription after an eye exam. LensTime keeps every exam and shows exactly what changed: "Left: -2.25 to -2.50 (increased by 0.25)". Just the numbers, never advice.

LEFT AND RIGHT, TRACKED SEPARATELY

Real life isn't symmetric. One lens tears, the other is fine. Tap "I replaced my lenses" and choose Both, Left only, or Right only. Each eye keeps its own countdown, and only the eye you replaced resets.

REMINDERS THAT DON'T GIVE UP

• An early heads-up a few days before the change date
• A reminder on the day itself
• A gentle nudge every day after, until you mark it done All at the time you choose. Miss a change? The app won't let it slide.

LOG AN EXAM IN SECONDS

Photograph the prescription now and type the numbers later. The form fills itself from your last exam, so a routine check-up is one or two corrections instead of ten fields. Cylinder and axis stay folded away unless you have astigmatism.

KEEP YOUR PRESCRIPTION HANDY

SPH, CYL, AXIS, base curve and diameter, all on one screen and ready to copy when you reorder.

THE CORE IS FREE, FOREVER

• Track one lens profile (left and right)
• The full reminder chain
• Asymmetric left and right changes
• Your latest prescription and what changed

LENSTIME PRO, ONE-TIME PURCHASE, NO SUBSCRIPTION

• Home and lock screen widgets
• Multiple lens profiles
• Full prescription history and chart
• Stock and solution tracking with low-stock alerts
• Yearly stats: how many changes, how many were planned

ELEVEN LANGUAGES

English, Turkish, German, Spanish, French, Italian, Danish, Norwegian, Swedish, Korean and Japanese.

PRIVATE BY DESIGN

Your data stays on your device and in your own iCloud. No tracking, no analytics, no servers. We don't collect anything.

LensTime is a reminder app, not a medical device and not medical advice. For decisions about your eye health, talk to your eye doctor.