Lenslog
100% free · No sign-up

Never forget your lens schedule again.

Track daily, 2-week, and monthly contact lenses and your solution expiry in one place. Just enter the opening date — the app handles the math.

Get started free No account · Ready in 3 seconds
Needs your attention
2 items expiring soon or overdue
2-Week

ACUVUE OASYS

2 days left
Swap soon
Watch
Solution

Opti-Free

Expires today
Replacement recommended
Act
Buy on Amazon
Daily

DAILIES TOTAL1

12 pairs left
~12 days supply
Good

Sound familiar?

"Wait, when did I open these?"

Forgot the start date on your 2-week lenses.

"Is this solution still good?"

Tossing it just to be safe, again.

"How many boxes do I have left?"

Can never tell when to reorder.

What Lenslog does

Simple controls that take the friction out of lens care.

Status at a glance

Colour-coded indicators (good / watch / act) sort items by urgency, so what needs attention floats to the top.

Every lens type covered

Daily, 2-week, and monthly lenses each have their own tracking logic. No more mental math.

Solutions too

Register the days valid after opening (30/60/90 are presets). Multiple bottles tracked side-by-side.

Free & private

No sign-in. No server upload. Everything stays in your browser, on your device.

Three steps to peace of mind

01

Add your lenses & solution

Just the product name and type. Stock count and opening date are optional.

02

Tap when you open or use

"Used 1 today" or "Open new pair" — one tap to log.

03

Lenslog does the math

Days left, stock count, and expiry all auto-update. Just open the app to check.

Who it's for

Daily wearers

For visibility

Know exactly when to reorder. No more running out, no more overbuying.

2-week & monthly

For swap reminders

Enter the opening date once. The next swap date is right there waiting.

Solution users

For safety

Multiple solution bottles, each with its own expiry. Stay on the safe side.

Frequently asked questions

Is it really free?

Yes — fully free with all features. We support the app with unobtrusive ads inside.

Do I need to sign up?

No. Open the app in any browser and start using it immediately.

Where is my data stored?

Everything is stored locally in your browser. Nothing is sent to a server.

Does it work on my phone?

Yes — Lenslog runs in the browser on phones, tablets, and computers.

Will I get notifications?

Not yet. The current version is a check-when-you-want app. Push notifications are planned for an upcoming update.

Can I sync between devices?

Not yet — data lives on each device today. Multi-device sync is on the roadmap.

Does it work for hard contacts?

The lens tracker is designed for soft contacts, but the solution tracker works for any wearer.

What happens if I clear my browser?

Data is tied to your browser's storage, so clearing it will reset Lenslog. Cloud sync is coming.

Lens care, simplified.

No download. No sign-up. Just open and go.

Start free
あいケア - コンタクトレンズの残り日数を自動管理 · Lenslog