Your fertility isn't a guessing game. It's data.
A simple 30-second daily saliva test that reveals your fertile window through real hormone data.
  • CE-Certified Medical Device
  • 100% Perfect Use
  • 92% Typical Use
Why We Exist
"In 2015, my doctor told me my only non-hormonal option was a manual thermometer and a paper diary. I realized my Kindle was more advanced than my healthcare."
For decades, women were excluded from clinical research. inne was born to close that gap. We're not just a gadget — we're a movement to reclaim your reproductive autonomy using objective, non-invasive data.
— Eirini Rapti, Founder of inne
Measure hormones directly, instead of guessing them.
Temperature shifts and LH surges are echoes of what your hormones are doing. inne listens to the source — progesterone in saliva — to confirm ovulation and reveal your real cycle pattern.
1
A drop of saliva, every morning
Place a single drop onto the test strip. Insert into the Minilab.
2
Real progesterone measurement
Lab-grade biosensors quantify your actual hormone level — no guessing.
3
A cycle that's truly yours
Confirm ovulation, see your luteal phase, and learn your personal pattern over time.
Clinically Validated. Scientifically Proven.
inne detects your luteal phase with high accuracy, giving you confidence in every result.
87.5%
Clinical Sensitivity
100%
Clinical Specificity

A Clearer Picture, Side by Side

Compare the different approaches to fertility tracking and discover what makes inne's hormone-based method different.

BBT LH Strips Cycle Apps
Measures hormones directly
Confirms ovulation
Uses real hormone data
30-second daily routine
Fits your lifestyle
Personalized cycle insights

It adapts to your life not the other way around

Other methods require strict routines. inne adapts to your day: a 4-hour window, unaffected by sleep, alcohol, or stress, and an app that understands your cycle better each time.

4-hour window

4-hour window

Measure when it suits you. A four-hour window means no fixed time required.

Reliable measurement

Reliable measurement

Reliable hormone measurements even after a glass of wine or a short night's sleep.

30 seconds

30 seconds

Easy to use wherever you are – in bed or already at work. Saliva sample, insert, done!

Intelligent learning

Intelligent learning

Accuracy increases the better the app understands your individual cycle.

Clinical precision. Completely private.

Validated in an independent clinical study (protocol approved by LAGeSo Berlin). Hormone data that belongs only to you.

Logo 1 CE certified (BSI - NB 2797)
Logo 2 ISO 13485
Logo 3 Red Dot 2021
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100% effectiveness with perfect application

Pearl Index 0.0 — analyzed over 1,165 cycles in our clinical study . Residual risk not excluded.

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92% method reliability in typical applications

Pearl Index ~8 — freedom without synthetic hormones. View study . Residual risk cannot be excluded.

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Biochemical data instead of assumptions

We measure what your body actually does — not what it “could” do.

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Data privacy first

Your hormone data belongs only to you. Encrypted and self-determined.

Understanding hormones the entire cycle.

inne doesn't just measure your fertile days. It provides you with the hormone profile that most methods omit — and that makes all the difference in discussions with doctors.

Understanding Symptoms

Understanding Symptoms

Connect moods, energy, and body signals with your actual hormone levels — instead of an assumption.

Recognizing patterns early

Recognizing patterns early

If your progesterone levels don't rise in your cycle, that's a signal you can discuss with your doctor — based on real hormone data.

In-depth discussions

In-depth discussions

Share real hormone data with your doctor — the basis for clear decisions instead of vague assumptions.

inne life suits you if...

The most important requirements at a glance. You can see the complete criteria here.

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You are not pregnant or breastfeeding
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You are not taking any treatment that affects your menstrual cycle
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Your cycle lasts between 22 and 35 days.
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You are over 18 years old
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You do not use hormonal contraception
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You want real data instead of estimates
Take Fertility Quiz

Stop guessing. Start knowing.

Become part of a growing community that uses objective hormone data to take control of its fertility.

To the inne minilab
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