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Pre-Pregnancy · Timing

A clearer read on your window.

"Compare today's line with yesterday's, not with a guess."

Test strips, plus an app that photographs each one, reads how dark the line is and keeps them in order. The thing you actually want to know is whether today is darker than yesterday, and that's exactly the thing that's hardest to judge by eye.

Retail ₹1,999 · Pre-book ₹1,499, 25% off · The founding price, held until we ship

A chart of the LH surge rising sharply then falling, with ovulation marked about a day after the peak peak ovulation cycle days → LH ovulation ≈ 24–36h after the surge
2 minto read a strip App-loggedphotographed & compared 50 stripsper kit ~6 daysthe fertile window

You're looking for a rise, not a line

Roughly a day before you ovulate, luteinising hormone, LH, climbs sharply. That climb is what an ovulation strip detects, and ovulation usually follows somewhere around 24 to 36 hours later. Because sperm survive a few days, the useful window is the handful of days leading up to and including ovulation, not the day itself.

Here's the awkward part. LH is present in your urine all through the cycle, so there's almost always a second line. What matters is whether it's darker than the control line, and whether it's darker than it was yesterday. Judging that by eye, alone, in bathroom lighting, at a different time of day each morning, is genuinely difficult, and it's where most people get confused.

So the app does that part. It photographs each strip under a consistent crop, measures the line intensity, and puts them side by side in order. You see a curve, not a single ambiguous line.

  • A rise, not a reading: the shape across days is the signal
  • Consistent capture: same crop, same measure, every time
  • Kept in order: today's strip sits next to yesterday's
  • Your cycle, logged: so next month starts with last month's pattern

The things that make a kit worth having

Strips are a commodity. What you're really buying is whether you can read them.

  • Enough strips to see a pattern: 50 in the kit. Kits that give you seven strips assume you already know when to test, which is the thing you're trying to work out.
  • An app that reads, not just records: plenty of apps let you type in "positive" or "negative". This one measures the line for you, which is the part people find hard.
  • Your data stays yours: photographs and readings are stored on your phone. We don't need them and we don't want them.
  • Plain instructions: when to start testing based on your own cycle length, printed on the box rather than buried in an app onboarding flow.

What's actually in the box

Tests50 LH urine test strips. Read at 10 minutes, valid for around 30.
AppFree companion app for Android and iOS. Photographs each strip, measures line intensity, charts the rise across your cycle.
Sensitivity25 mIU/mL, the standard threshold for LH strips.
StoragePhotos and readings are held on your device. No account is required to use the kit.
Shelf lifePrinted on each foil pouch. Keep dry and at room temperature.
In the box50 strips, a collection cup, a quick-start card with a cycle-length table.
PriceRetail ₹1,999 · Pre-book ₹1,499

Four steps, once a day

  1. Work out when to start from your cycle length, the card in the box has a table. For a 28-day cycle that's usually around day 10.
  2. Test at roughly the same time each day, ideally early afternoon rather than first thing. LH tends not to show up in the first urine of the morning.
  3. Dip the strip to the line for the time on the pouch, lay it flat, and read it at 10 minutes.
  4. Photograph it in the app. Keep going daily until you see the line peak and start to fall.

Drinking a lot of water in the hour before testing dilutes your urine and can wash out a real surge. It's the most common reason a test looks weaker than it should.

!

Not contraception, and not a diagnosis

This kit tells you when you're most likely to be fertile. It cannot tell you when you're safely not. Please don't use it, or any cycle-tracking method, to avoid pregnancy.

It also isn't a fertility test. A surge suggests ovulation is likely; it doesn't confirm one happened, and it says nothing about egg quality, tubes or sperm. PCOS in particular can produce raised LH all cycle long, which makes strips hard to interpret, if that's you, talk to your doctor before relying on them.

If you've been trying for a year, or six months if you're over 35, that's the point to see a doctor rather than buy more strips.

Questions people ask before buying

When in the day should I test?
Early afternoon suits most people. LH usually starts rising in the morning but takes a few hours to show up in urine, so first-thing tests often miss it. Pick a time and keep to it, and try not to drink a lot in the hour before.
The second line is always there. Am I always ovulating?
No, a faint second line is normal all cycle long, because LH is always present at some level. It only counts as a positive when the test line is as dark as, or darker than, the control line. That comparison is exactly what the app measures for you.
I got a positive. When should we try?
Ovulation typically follows a surge by about 24 to 36 hours, and sperm survive a few days, so the days around and just before a positive are the useful ones. The general advice is to try every day or two across that window rather than trying to hit a single hour.
I've tested all month and never got a positive.
It happens, and it doesn't necessarily mean you didn't ovulate, a surge can be short enough to fall between two daily tests, or you may have started testing too late. Testing twice a day around the expected time helps. If it happens for a few cycles running, that's worth mentioning to a doctor.
Does the app need an account?
No. It works without one, and your photos and readings stay on your phone. We'd rather not hold this kind of data at all.

Reserve yours at ₹1,499

The founding price, 25% off the ₹1,999 retail price. Leave your details and we'll write to you when it ships.

What people are asking about the kit

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