Belle Health

What Belle Health does

Belle Health is a digital FemTech company building consumer-facing tools for hormonal health, with a primary clinical focus on Premenstrual Dysphoric Disorder (PMDD) and severe PMS. Founded in 2021 by Victoria (CEO, medical background) and Rafael (CTO, engineering background), who met at the University of Cambridge, the company is legally domiciled in the United Kingdom as Belle Health AI Technologies Ltd and operates from Munich, serving users across 14 countries spanning Europe, North America, and South America. The company combines medical and engineering expertise to address diagnosis delays that average 12 years for PMDD, where 1 in 20 women of reproductive age are affected.

The company's core product is the Belle Cycle App, a mobile cycle tracking platform on iOS and Android that pairs DRSP-aligned daily logging (the diagnostic standard for PMDD) with a luteal-week Cognitive Behavioral Therapy toolkit co-built with a PMDD-specialist clinician and algorithmic pattern recognition across symptoms, mood, sleep, and cycle data. The platform is extended by the Belle Ring (€329, a smart ring measuring HRV, sleep, and body temperature for early physiological signals of PMDD), the Belle Web Planner for phase-aware scheduling in the browser, the PMDD Course, Cycle Glow Gummies supplements, and a suite of free self-assessment quizzes covering PMDD, PCOS, perimenopause, female ADHD/AuDHD, and early pregnancy. Clinical research collaborations with the University of Marburg, Utah State University, TU Munich, and the University of Cambridge — including an active clinical trial of the app-based CBT program and an advisory board of named clinical academics — underpin the clinical positioning.

Belle operates a product-led, freemium business model: the app is free to download with basic tracking, and premium subscriptions unlock advanced pattern analysis, the CBT toolkit, PDF clinician exports, and Ring integration. Revenue is generated through mobile app subscriptions, €329 hardware sales, educational courses, and HSA/FSA-eligible supplements. Distribution is self-serve through the App Store and Google Play with a 4.9 App Store rating, supplemented by content-led community marketing across TikTok, Instagram, Reddit, LinkedIn, and Pinterest, plus employer referral and affiliate programs for B2B2C expansion. To date the company has been funded primarily by non-dilutive German public programs (ESF, BMBF, Exist Grants, BayStartUP, Gründungswettbewerb – Digitale Innovationen, Christina Bohn Foundation) and accelerator participation in SpinLab HHL in January 2025; no material venture round is disclosed.

Name

Belle Health

Legal name

Belle Health AI Technologies Ltd

Website

https://bellehealth.co

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Belle Health is a digital FemTech company building an AI-powered cycle tracking app, smart ring, and clinical-grade CBT tools focused on PMDD and hormonal health. The platform serves women across 14 countries with DRSP-aligned tracking, biometric monitoring, and clinician-ready data exports.

Ownership category

akta.pro rank

Product category

Women's Health Technology (FemTech Cycle Tracking)

NAICS

Food (Health) Supplement Retailers (456191)

SIC

Wholesale-Drugs, Proprietaries & Druggists' Sundries (5122)

akta.pro industry

PRIMARYCRACAQAJ

Women’s Health & Fertility Tracking Devices (Ovulation/Temp Sensors, Pelvic Health Devices)

Consumer Products & Retail/Consumer Electronics & Appliances Retail/Personal Health & Wellness Devices (Smart Scales, BP/ECG Monitors, Sleep Devices)

SECONDARYHLACANAH

Therapeutic Companion Apps (Drug-Device-Digital Combination)

Healthcare & Life Sciences/Digital Health & Health IT/Digital Therapeutics (DTx) & Software as a Medical Device (SaMD)

SECONDARYHLAIADAG

Sleep, Stress & Mood Support

Healthcare & Life Sciences/Pharmaceuticals/Over-the-Counter (OTC) Medicines

Keywords

• Women's health tracking
• Cycle tracking app
• PMDD management
• Femtech wearables
• Hormonal health monitoring

Headquarters

HQ city

Munich

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Supply Chain, Operations

Revenue model

1. Mobile App Subscriptions: Cycle tracking app with freemium model - basic tracking free with premium features for detailed pattern analysis and CBT toolkit
2. Hardware Sales (Belle Ring): One-time purchase smart ring at €329 for passive body temperature and sleep monitoring
3. Educational Courses: PMDD Course and educational content offerings

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

Belle Health sells a cycle intelligence platform centered on the Belle Cycle App — a mobile application for symptom logging, AI-powered daily hormone decoding, DRSP-aligned PMDD tracking, and a luteal-phase CBT toolkit. It is paired with the Belle Ring, a €329 smart ring that passively reads body temperature, sleep, and HRV to surface early physiological PMDD warning signs. Supporting paid offerings include the PMDD educational course and Cycle Glow Gummies supplements sold through Belle's own shop.

Product overview

Belle Health operates as a platform-plus-modules product suite focused on hormonal health tracking and PMDD management. The core offering is the Belle Cycle App, a mobile application providing AI-powered cycle tracking, symptom logging, and pattern recognition across menstrual phases. This core platform is complemented by the Belle Ring wearable hardware for passive temperature and sleep tracking, the Belle Web Planner for browser-based phase-aware scheduling, and multiple self-assessment quiz modules (PMDD, PCOS, Perimenopause, ADHD, Pregnancy). Additional offerings include the PMDD Course educational module and Cycle Glow Gummies supplements. The products work together to provide comprehensive cycle intelligence from tracking through to clinical data export for healthcare providers.

Differentiator

Problem solved

Functional benefit

Brands

• Belle Cycle App: Mobile application for cycle tracking, symptom logging, PMDD management with DRSP-aligned tracking and CBT toolkit.
• Belle Ring
• Belle Web Planner
• PMDD Course

Products and services

• Belle Cycle App A freemium mobile cycle tracking application for women that provides DRSP-aligned daily logging, AI-powered daily hormone decoding, pattern recognition across menstrual phases, a CBT-based SOS toolkit for the luteal phase, and clinician-ready PDF exports. Premium subscription unlocks advanced pattern analysis, the full luteal CBT toolkit, basal-temperature pairing with the Belle Ring, and partner sharing.
• Belle Ring A €329 smart ring that passively reads body temperature, sleep, and HRV to detect early physiological warning signs of PMDD (HRV decline and sleep disruption patterns roughly 3 nights before symptom onset). The data flows into the Belle Cycle App and Web Planner for use by women with severe PMS, PMDD, irregular cycles, or perimenopause.
• PMDD Course
• Cycle Glow Gummies Dietary supplement gummies sold through Belle Health's own online shop, marketed as supporting hormonal health during the menstrual cycle and eligible for HSA/FSA funds.

Quantifiable outcome

• 82% of users see their cycle pattern within two months of logging
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• University of CambridgecoreStrategic or Co-development PartnerFounding institution where founders Victoria and Rafael met. Core academic partner supporting product development and research initiatives for hormonal health technology.
• Philipps-Universität MarburgcoreStrategic or Co-development PartnerClinical research partner conducting studies on Belle's app-based Cognitive Behavioral Therapy (CBT) program for PMDD.
• Utah State UniversitycoreStrategic or Co-development PartnerClinical research partner collaborating with University of Marburg on testing Belle's CBT intervention program.
• Technische Universität München (TU Munich)coreStrategic or Co-development PartnerAcademic partner providing clinical expertise and research support. Prof. Dr. Marion Kiechle from Klinikum rechts der Isar serves on Belle's advisory board.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Embr Labs: Wearable for women's hot flashes and perimenopause symptom management. Adjacent women's-health wearable peer with similar demographic focus and direct-to-consumer distribution.
• Mira: Hormone-monitoring device and app tracking LH, E3G and PdG through urine test strips. Comparable to Belle on the hormonal-condition diagnostic thesis and the hardware-plus-app hybrid model.
• Eli Health: Continuous hormonal monitoring through saliva-based wearable and app, focused on perimenopause and contraception. Comparable emerging FemTech peer to Belle in combining biometric hormonal monitoring with a direct-to-consumer app.
• Proov: At-home hormone tests for ovulation, perimenopause and cycle insights, sold direct-to-consumer. Comparable to Belle's PCOS, perimenopause and cycle-pattern positioning and to the Belle Ring's biometric + symptom-correlation approach.

Direct peers

• Flo Health: Largest consumer cycle-tracking and women's-health app globally, offering AI-driven predictions, symptom logging and a freemium subscription. Directly competes with Belle Cycle for the same general female user base and overlapping PMDD/menstrual symptom features.
• Clue: Berlin-based cycle-tracking app with clinically validated content and a freemium subscription model. Closely comparable to Belle in European user base, PLG distribution and emphasis on evidence-based tracking.
• Natural Cycles: FDA-cleared and CE-marked cycle-tracking app that combines basal body temperature with predictive algorithms, marketed heavily for contraception and conception. Closest direct peer to Belle's combination of clinical-grade positioning, body-temperature signal and women's-health regulatory narrative.

Broad incumbents

• Oura: Smart-ring incumbent with temperature, HRV and sleep tracking and a subscription analytics platform. Direct hardware competitor to Belle Ring at comparable price points and a much larger install base and brand.
• Whoop: Subscription-based biometric wearable focused on recovery, sleep and HRV, with growing women's-health features. Comparable to Belle Ring's biometric-tracking ambition and overlap on luteal-phase HRV analytics.
• Apple: Apple Watch ships cycle tracking, temperature sensing (Series 8+), HRV and sleep features, plus HealthKit ecosystem. A structural platform incumbent whose free built-in cycle and biometric tracking caps pricing power for Belle Ring and Belle Cycle subscription.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/yourbellehealth
• Instagraminstagram.com/bellehealth.app
• TikToktiktok.com/@bellehealth.app
• Pinterestpinterest.com/bellehealthapp

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Belle Health