LensTime: Contact Lens Tracker
Reminder for each eye. No ads.
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
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 keeps reminding you 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 SPH up 0.25". Just the numbers, never advice.
LEFT AND RIGHT, TRACKED SEPARATELY
Real life isn't symmetric. One lens tears, the other is fine. Changed just one? Tap that lens in the case, say why if you like, and tap "I Changed the Left Lens" or "I Changed the Right Lens". Only that eye starts over. The other keeps its own countdown. Changed both? "I Changed Both" is right on the home screen.
REMINDERS THAT DON'T GIVE UP
- An early heads-up a few days before the change date
- A reminder on the day itself
- After that, a nudge every day for a week, then weekly, until you mark it done
All at the time you choose. Already changed it? Mark it straight from the notification.
LOG AN EXAM IN SECONDS
In a hurry? Take a photo of the prescription and add the numbers later. Every field opens at your last exam's value, so only what changed needs a turn of the wheel. 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
THIRTEEN LANGUAGES
English, Turkish, German, Spanish, French, Italian, Danish, Norwegian, Swedish, Polish, Romanian, 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.
Ratings & Reviews
LensTime 2.0, redesigned from the ground up:
- A lens case on the home screen, with the days left for each eye
- Tap a lens to see its dates and history, or to change just that one
- A new prescription page that shows what changed since your last exam
Also fixed: a crash that could happen when opening the app from a reminder.
The developer, ONUR YAVUZ, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ONUR YAVUZ
- Size
- 24 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 12 more
- English, Danish, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Romanian, Spanish, Swedish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- LensTime Pro $9.99
- Copyright
- © 2026 Onur Yavuz