Linso
Norsk

iPhone · Free · No account

Fresh lenses,
on time.

Linso tracks your contact lenses one eye at a time and reminds you when it’s time to replace them. Wear dailies for a while and your monthly pair waits in the case, still counting down.

Coming to the App Store See how it works

iOS 26 or later English & Norsk No ads · no tracking

Left
In
Right
In

Reminder on replacement day, at 09:00

Today: two rings showing 18 days left on each lens, an In and Out switch, Replace both, and a summary of opening date, replacement date and stock.
Today
Today on daily lenses, with the monthly pair shown in its case with 18 days left.
Dailies, monthly pair in the case
My lenses: a list of lens types and unopened stock per eye.
Lens types and stock

01The app

One ring per eye.
Nothing to remember.

The ring is the life left in each lens. It shrinks a little every day and is empty on replacement day. Linso does the counting and the reminding, and stays out of the way otherwise.

  • Each eye on its own

    Left and right keep their own opening date, cycle and stock, because lenses tear and get lost one at a time.

  • Replace in one tap

    Replace both, or one eye with a date and a reason. Undo for a few seconds if you tapped by mistake.

  • Reminders that keep going

    A heads-up, one on the day, then daily while overdue. Mark lenses replaced straight from the notification.

  • Several lens types

    Monthly, two-week and daily lenses side by side, each with its own cycle and stock. Switch in two taps.

  • Stock and supply

    Unopened lenses per eye, a box at a time, with an estimate of when you run out and a nudge before you do.

  • Hours worn

    A simple In and Out switch adds up the hours per lens, or counts them in from replacement if you sleep in them.

  • History

    Every lens by month, with how often you replaced on time. Edit or remove any entry.

  • Widgets

    Days left on the Home Screen and Lock Screen, and lenses in or out without opening the app.

  • Strength per type

    Sphere, cylinder, axis, base curve and diameter for each lens type, entered with a scroll wheel. Save to Apple Health if you like.

02Lens types

Dailies for a week.
Monthlies wait.

Tap the lens type at the top of Today and pick another. Your monthly pair goes into the case and keeps counting down, the way the maker dates it. Switch back while it has days left and you carry on with the same pair, with no stock used.

  • Both eyes or one eye at a time
  • Expired pair in the case? Linso asks before opening a new one
  • One notice on the day the cased pair runs out, no nagging
Monthly pair · 30 daysOctober
1–10worn20 left
11–17dailiesin case
18–30worn again13 left
The case doesn’t stop the clock: lens life counts from opening.

03Privacy

Your lenses.
Your data.

No account, no ads, no analytics, no servers of ours. Read the privacy policy; it’s short.

Your own iCloud

Lenses, stock and settings sync through your private iCloud database. We can’t see it.

Strength stays on the phone

Your prescription is never sent to iCloud. Apple Health gets a copy only if you turn that on.

Nothing collected

The App Store label says Data Not Collected, and that’s the whole story.