LensLog: Contact Lens Reminder
Replacement & reorder alerts
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Never wear expired lenses again. Log the opening date and get alerts before replacement day - and daily nudges until you swap. Per-eye tracking and restock alerts.
When did you open these lenses?
LensLog is a reminder app that tracks your contact lens replacement deadlines and your spare stock. Just log the day you open a pair, and LensLog alerts you ahead of replacement day for 2-week and monthly lenses - then keeps reminding you every day until you actually swap them. Wearing lenses past their deadline puts your corneas at risk. "I can't remember when I opened these" ends here.
WHO IT'S FOR
- You keep forgetting when your 2-week or monthly lenses are due
- You wear a different power in each eye
- You've run out of spare lenses at the worst moment
- You never want to miss restocking your dailies
KEY FEATURES
Automatic replacement dates
Enter the opening date and LensLog calculates your next replacement day and days remaining, with a meter that shows the timing at a glance.
Reminders that don't give up
Alerts 3 days before, the day before, and on replacement day. Past the deadline? LensLog nudges you every single day until you log the swap - because your eyes matter.
Per-eye tracking
Different power (PWR), BC or opening date in each eye? Track left and right on their own cycles.
Stock tracking & reorder alerts
Register how many boxes you have, and LensLog tells you when to order more. For daily lenses, it predicts your stock-out date from the days you have left. Save your usual shop's link and restock in one tap.
Comfort log
Record wear time and comfort to see, on a chart, which day your comfort starts to drop - your replacement cycle suddenly makes sense.
Photo management
Add a photo of the box or blister pack (the subject is cut out automatically) to tell lenses apart at a glance.
Home screen widget
See your next replacement day and days left right on your home screen.
Daily eye care tips
A practical eye and lens care tip, every day.
Free to use (track 1 lens type). Go Premium for unlimited lenses, per-eye tracking, purchase links, and an ad-free experience.
Note: This app does not provide medical advice. Always follow your eye doctor's instructions for wear time and replacement cycles.
Clear vision, zero worry.
■ LINKS
• Support: https://tsuzukit.com/contact/
• Terms of Service: https://tsuzukit.com/legal/terms-of-service.html
• Privacy Policy: https://tsuzukit.com/legal/privacy-policy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ryo Tsudukihashi, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TsuzuKit
- Size
- 6.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
18+
- 18+
- Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- Premium (Weekly) $0.99
- Premium (Lifetime) $19.99
- Copyright
- © TsuzuKit 2026