4.9
stars on App Store — 120,000+ ratings
Pregmate App
Ovulation test scanner
Stop second-guessing faint lines. Start tracking with confidence.
3M+
ovulation tests scanned
4M+
users
4.9
AppStore rating
You scan. We analyze
You know exactly where you are.
The Pregmate app scans your ovulation test strip, reads the result automatically, and saves it to your cycle timeline.
Ovulation tests aren't always obvious. Lines are faint, lighting changes, and it's hard to remember if yesterday's test was darker than today's. The scanner takes the subjectivity out of it. You get a clear result every time, in the same format, regardless of the light in your bathroom.
Here's what's different:
- Guided scanning so every photo is consistent, regardless of lighting
- Automatic positive or negative result, plus a T/C ratio that shows how close you are to your LH peak
- Every scan saved automatically with date, cycle day, and fertile window context
- All your tests in one place, in order, so you can see how your surge builds and drops
Why 98% of Pregmate app users scan their tests
Because guessing isn’t a plan when timing matters.
The scanner removes the guesswork:
✓ Automatic interpretation: No more "is this positive?" anxiety
✓ Numeric T/C ratio: See exactly how line strength changes day to day
✓ Test history: compare today's result to yesterday's, last week's, or last cycle's
✓ Fertile window context: Each result placed on your cycle timeline, so you always know where you stand
*Based on in-app usage data, 2025.
Best by far
Real stories, real results
I have used 3 different ovulation test brands and by far pregmate is the best! Every time I use pregmate I get a clear and accurate reading. Using the app along with the test strips is super easy and no confusion if the test is positive or negative. I am trying to conceive a baby and I pray that pregmate will get me there 👍🏽
I love that you can take a picture of the test strips. It makes it so easy for somebody that is just starting their journey like me. I would really recommend it. You can just buy the test strips on Amazon and download the app.
I love this app so far because it’s easy to use and navigate through. It uses your camera to take a picture of the strips and predicts your ovulation more accurately than my other app. A few nurses recommended it to me at work.
Reading tests yourself vs. using the scanner
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Scroll horizontally to see more
| Pregmate scanner | Reading tests by eye |
|---|---|
| "Does this look positive to you?" | You make the call yourself |
| Clear positive or negative, every time | "Is this positive? Maybe?" |
| T/C ratio shows exactly how your levels changed day to day | Trying to remember if today's line is darker than yesterday's |
| Consistent result regardless of lighting | Wondering if the bathroom lighting is off |
| Every test saved with date, cycle day, and context | Losing track of which test was from which day |
| One number. One answer. Move forward | Second-guessing yourself |
Smart Fertility Tracking
Understanding your test shouldn't be guesswork
Was it positive?
The app reads both lines, measures their intensity, and gives you a clear positive or negative — plus a T/C ratio so you're not left guessing what a faint line means.
Was today's line darker?
Every scan saves automatically with the photo, T/C ratio, cycle day, and date. Compare results to yesterday's instantly — no strips to dig out, no notes to find.
When should you try?
The app uses your test results, cycle length, and symptoms together to predict your fertile window. The more you track, the more accurate it gets.
What types of tests can you scan?
The scanner is designed for ovulation test strips—the paper strips that show two lines.
Scroll horizontally to see more
Scroll horizontally to see more
| Test Type | Auto-Scan | Interpretation |
|---|---|---|
| Pregmate ovulation strips | Yes | Full auto-detection + T/C ratio |
| Most standard LH test strips sold on Amazon | Yes | Full auto-detection + T/C ratio |
| Digital tests | Manual entry | You log the result shown on screen |
| Midstream tests | Manual entry | You log your interpretation |
How the Pregmate ovulation test scanner works
-
1
Open Pregmate app
Tap "Add Test" in the Pregmate app -
2
Position your test strip
Follow the on-screen guide for consistent lighting and placement -
3
Get your result
Positive or negative, the app also displays a T/C ratio, a numeric value comparing the test line to the control line to help you understand line strength more clearly -
4
See what it means
Your result appears on your cycle timeline so you know if you're approaching your peak, at your peak, or past it. -
5
Build your picture
Compare results across days and cycles. Over time you'll know exactly how your surge looks — and when to act on it.
The number that tells the whole story
T/C ratio: your personal ovulation fingerprint
Everyone's LH surge looks different. Some people get dark, obvious lines. Others have subtler surges that are easy to miss.
The T/C ratio compares the intensity of the test line to the control line and gives you a number. The higher the number, the stronger your LH signal.
The T/C ratio is a number that lets you:
- Track your personal surge pattern
- Identify your actual peak, even if lines never get super dark
- Compare across cycles to see if patterns shift
- Share precise data with your doctor if needed
The T/C ratio shows you exactly when your surge started, peaked, and ended. That's your personal pattern — and it looks different from everyone else's.
Your data stays yours
Test images and results are visible only to you
Securely stored — never sold or shared with third parties
Your history is yours to keep or delete — whenever you want
One app for every stage of your journey
The scanner reads your test. The rest of the app tells you what to do with that information.
Before you test
Log your period and symptoms. Get a cycle-based ovulation prediction that tells you when to start testing.
Understand your fertile window
See how your cycle predictions and test results fit together and what your surge pattern looks like over time.
After a positive test
Switch to pregnancy tracking and your scanned tests, T/C ratios, and cycle history come with you.
One more thing
We know you've probably tried a lot of things already. Apps, tests, timing, supplements, tracking everything possible.
And we know how frustrating it is when nothing seems to work the way it's supposed to.
This app won't fix everything. It won't make you ovulate if you're not ovulating. It won't guarantee pregnancy.
But it will give you one thing: clarity.
Clear results. Clear data. Clear next steps.
And sometimes, that's all you need to keep going 💗
Ovulation test scanner: frequently asked questions
What is an ovulation test scanner?
An ovulation test scanner is an app feature that reads LH test strips using your phone camera, calculates a T/C ratio — the ratio of test line to control line intensity — and interprets the result automatically, without relying on visual judgment.
When should I start scanning ovulation tests?
Start testing 3-4 days before you expect to ovulate. For a 28-day cycle, that's usually around Day 11. If your cycles are irregular, start testing earlier (Day 8-9) to make sure you don't miss your surge.
Test once a day in the afternoon (between 2-8pm) until you see your T/C ratio start to rise. Once it starts climbing, test twice a day to catch your peak.
How accurate is the Pregmate test scanner?
The scanner has over 95% accuracy in detecting test lines and calculating T/C ratios, based on internal testing under standard conditions. Accuracy depends on good lighting, proper positioning, and quality test strips. The scanner is more accurate than reading tests by eye because it measures objective light intensity instead of relying on visual interpretation.
What if my test lines never get very dark?
Some people have lower or more subtle LH surges — and that’s completely normal. A positive test is typically when the test line is as dark as or darker than the control line. But your personal peak may not always look dramatic.
If you see your T/C ratio rise toward 0.8–1.0 and then drop over the next day or two, that rise-and-fall pattern may indicate your surge — even if the test line never appears very dark.
Tracking across a few cycles helps you understand what “peak” looks like for you.
Can I use the scanner if I have PCOS or irregular cycles?
You can use the scanner if you have PCOS or irregular cycles, but ovulation tests may be more difficult to interpret in these cases.
Ovulation test strips detect LH surges. An LH surge often precedes ovulation, but it does not always confirm that ovulation occurred.
With PCOS, LH levels may be consistently elevated or fluctuate more frequently, which can lead to multiple rises in LH during a cycle. Tracking changes in your T/C ratio over time may help you better understand your personal pattern.
If you have PCOS or concerns about ovulation, consider discussing tracking methods with your healthcare provider.
Do I have to scan every single test?
No. Scan as many or as few tests as you want. The more tests you scan, the more complete your Test History will be, making it easier to compare T/C ratios across days and spot patterns in your cycle.
Some people scan every test. Others start scanning when they believe they’re approaching their surge. Both approaches can work — consistency just makes patterns easier to see.
Is my test data private?
Yes. Your test images and results are completely private and only visible to you. Pregmate stores your data securely and never shares it with third parties without your explicit consent.
You can delete test images and results at any time.
What if the app can't read my test?
If the lighting is too dim, the test is positioned incorrectly, or the lines are too faint, the app will ask you to retake the photo.
Make sure:
- Your test is on a flat white surface
- The lighting is bright and even (natural light works best)
- The camera is focused and the test lines are clear
- You're holding the phone steady
If the app still can't read the test, you can log the result manually, your tracking history stays complete either way.
Can I share my test results with my doctor?
Yes. You can share your saved test photos and T/C ratios with your doctor.
Some healthcare providers may find this information helpful when reviewing your cycle patterns or discussing ovulation timing. These results can serve as additional context alongside other clinical evaluations.
Medical disclaimer
The Pregmate Ovulation Test Scanner is a fertility tracking tool and should not be used to diagnose or treat medical conditions, prevent pregnancy, or replace advice from a healthcare provider. Results should be interpreted in consultation with other fertility signs and professional medical guidance. Individual results may vary.
Content reviewed by Pregmate Medical Team. Last updated: March 2026.