About
Inne is a CE-certified hormonal contraception alternative designed for people who want to understand and manage their fertility naturally — without synthetic hormones. At the core of the system is the inne Minilab: a compact reader device that analyzes a saliva sample each morning to measure progesterone levels and determine whether the day is fertile or non-fertile. The accompanying inne app aggregates your daily test results, tracks cycle patterns over time, and builds a personalized fertility profile that becomes more accurate with each reading. Unlike basal body temperature or period-tracker apps that estimate based on calendar data, inne provides direct biochemical insight into your hormonal status. With a Pearl Index-based effectiveness of 92%, inne sits between condoms (87%) and the hormonal pill (93%), but does so without introducing external hormones into the body — appealing to those who experience side effects from hormonal contraception or prefer a more natural approach. The product is available via subscription. A starter package includes the inne Reader, charger, and strips for three cycles. Ongoing deliveries automatically ship strip refills every one or three months. Plans range from 12 to 24 months, with the reader included free on the longest plan. Inne is CE-certified as a medical device and has received a 4.3/5 rating across hundreds of independent reviews. It's best suited for people in regular cycles, non-smokers, and those comfortable with consistent daily testing routines.
Key Features
- Saliva-Based Progesterone Testing: Each morning, a simple saliva sample analyzed by the inne Reader measures progesterone levels to classify the day as fertile or non-fertile — providing real biochemical data rather than calendar estimates.
- CE-Certified Medical Device: Inne is officially CE-certified as a medical contraception device, meeting European safety and performance standards for health technology.
- Companion App with Cycle Intelligence: The inne app tracks daily test results, builds a personalized cycle profile, and improves its predictions over time as it learns your hormonal patterns.
- Hormone-Free with 92% Effectiveness: Delivers contraceptive protection comparable to condoms and nearly on par with the pill — without introducing synthetic hormones into the body.
- Subscription-Based Strip Delivery: After the starter kit, test strips are automatically shipped every 1 or 3 months, ensuring you never run out with hassle-free home delivery.
Use Cases
- Women seeking a hormone-free alternative to the pill or IUD who want scientifically validated, device-based contraception.
- People trying to conceive who want to accurately identify their fertile window using daily progesterone data.
- Individuals tracking their menstrual cycle and hormonal health over time to understand their body better.
- Women who experience negative side effects from hormonal contraception and need a non-hormonal certified solution.
- Health-conscious individuals who prefer data-driven, personalized reproductive health management via a companion app.
Pros
- No Hormonal Side Effects: Completely hormone-free, making it ideal for people who experience mood changes, weight fluctuations, or other side effects from the pill or hormonal IUDs.
- Scientifically Grounded & Certified: CE-certified as a medical device and backed by saliva progesterone science, giving users confidence in the reliability of daily readings.
- Works for Contraception & Conception: Can be used to prevent pregnancy or to identify the best days to conceive, making it a versatile tool across different life stages.
Cons
- Lower Effectiveness Than IUDs: At 92% effectiveness, inne is less reliable than hormonal IUDs (~99%), which may not meet the needs of those requiring the highest possible protection.
- Requires Daily Testing Discipline: Accurate results depend on testing every morning at a consistent time, which may be challenging for those with irregular routines.
- Ongoing Subscription Cost: The system requires a paid subscription for strip refills, resulting in a recurring expense that some users may find less cost-effective than other methods long-term.
Frequently Asked Questions
How does inne work?
Each morning you apply saliva to an inne Strip and insert it into the inne Reader device. The reader measures your progesterone level and syncs the result to the inne app, which categorizes the day as fertile or non-fertile based on your personal hormonal profile.
How effective is inne as contraception?
Inne has a 92% effectiveness rate (Pearl Index), which is higher than condoms (87%) but slightly below the hormonal pill (93%) or IUDs (99%). Consistent daily use improves accuracy over time.
Is inne suitable for everyone?
Inne works best for people with regular cycles, typically between the ages of 18–45. It may not be suitable for those with irregular cycles, PCOS, or certain health conditions. An eligibility quiz on the website helps determine if inne is right for you.
What's included in the starter package?
The starter package includes the inne Reader with manual and charger, plus inne Strips for 3 full cycles. Subscribers on the 24-month plan receive the reader free of charge.
How does the subscription work?
You choose a minimum term (12 or 24 months), during which strip refills are delivered every 1 or 3 months. After the minimum term, the subscription renews automatically but can be cancelled monthly at any time with no hidden fees.
