What Glow does

Glow Inc. is a San Francisco-based women's reproductive health platform, founded in 2013 and incorporated in the United States, operating a family of four mobile apps — Glow (ovulation tracking), Glow Nurture (pregnancy), Glow Baby (infant care), and Eve by Glow (menstrual cycle) — alongside a 25M+ member community and a direct e-commerce storefront (Glow Shop) for connected hardware. Its core technology combines a predictive fertility algorithm (trained on multi-signal inputs including BBT, ovulation test results, cycle length, and symptoms) with two AI-powered features: a computer-vision ovulation test strip scanner and GlowGPT, a generative-AI Premium assistant. Glow is led by co-founder and CEO Michael Huang, with co-founder Max Levchin (PayPal) serving as Chairman.

The company monetizes through three streams: (1) Glow Premium at $59.99/year (or a $100 lifetime tier) unlocking GlowGPT, advanced charting, comparative insights, health forecasts, premium content, and an ad-free experience across all four apps; (2) hardware sales of the Glow Basal Thermometer, FDA-approved Test Strips Bundle, and Glow Smart Breast Pump (the last with insurance billing); and (3) integrated commerce through Glow Shop. Distribution is mobile-first via the Apple App Store and Google Play, augmented by earned media (Time, BuzzFeed, Elle, Refinery29) and the in-app community platform as a top-of-funnel engine.

In March 2025, Glow merged with Asia Genomics to extend its women's health platform into Southeast Asia, Australia, and New Zealand, layering genomic-testing capability onto its existing reproductive health stack. The company remains privately held, with prior venture backing from Andreessen Horowitz, Founders Fund, Formation 8, Slow Ventures, 9Yards Capital, and HVF Labs, totaling approximately $23M across a 2013 Series A and a 2014 Series B.

Name

Glow

Legal name

Glow Inc.

Website

https://glowing.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Glow is a women's reproductive health platform offering four integrated apps (ovulation, pregnancy, baby, period tracking), an AI-powered Premium subscription ($59.99/yr), connected hardware, and a 25M+ member community serving women across the full reproductive lifecycle.

Ownership category

akta.pro rank

Product category

Women's Digital Health / Femtech

NAICS

Health and Personal Care Retailers (4561)

akta.pro primary industry

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

akta.pro secondary industry

Consumer Health Wearables & Fitness Trackers (Wellness Monitoring) (HLAHACAJ)

Keywords

• Fertility tracking apps
• Women's reproductive health
• Ovulation prediction
• Pregnancy tracking apps
• Menstrual cycle monitoring

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Marketing or Sales, Personnel, Infrastructure, Operations

Revenue model

1. Glow Premium Subscription: Annual subscription at $59.99/year providing access to premium features including GlowGPT AI, advanced charting, comparative insights, health forecasts, premium articles, ad-free experience, and premium support across all four Glow apps
2. Lifetime Premium Access: One-time payment of $100 for lifetime access to premium features on all Glow apps (Eve Period Tracker, Ovulation Tracker, Nurture Pregnancy Tracker, and Baby Tracker)
3. Hardware Sales: Sale of connected health devices including Glow Basal Body Thermometer, Ovulation & Pregnancy Test Strips Bundle, and Glow Smart Breast Pump sold through the Glow Shop

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Glow sells a family of four women's health mobile apps (Glow Ovulation Tracker, Glow Nurture pregnancy tracker, Glow Baby tracker, and Eve by Glow period tracker) to individual women across the reproductive lifecycle. The free apps are monetized through a $59.99/year Glow Premium subscription (with $100 lifetime access) and through direct e-commerce sales of connected hardware — basal thermometers, FDA-approved ovulation and pregnancy test strips, and a smart breast pump — distributed via the Glow Shop.

Product overview

Glow is a comprehensive women's health platform consisting of four core mobile applications (Glow Ovulation Tracker, Glow Nurture Pregnancy Tracker, Glow Baby Tracker, and Eve by Glow Period Tracker) supported by a subscription service (Glow Premium), an e-commerce shop (Glow Shop) selling connected hardware products, and a social community platform. The flagship Glow app uses predictive algorithms and AI-powered features including an ovulation test strip scanner and GlowGPT assistant. The company expanded internationally through a 2025 merger with Asia Genomics and is recognized as a key player in the women's digital health and femtech markets.

Differentiator

Problem solved

Functional benefit

Brands

• Glow Ovulation Tracker: Fertility tracking app to help women get pregnant faster by predicting ovulation and fertile windows
• Glow Nurture
• Glow Baby
• Eve by Glow
• Glow Shop

Products and services

• Glow Ovulation Tracker Main fertility tracking app that combines ovulation prediction, basal body temperature and hormone tracking, and symptom logging to help women identify their most fertile days and conceive faster.
• Glow Nurture Pregnancy Tracker Pregnancy tracking app that follows prenatal health week-by-week, provides baby growth estimations with size comparisons, and helps users understand bodily changes during pregnancy.
• Glow Baby Tracker Baby health tracking app that supports parents in monitoring their child's health, including tracking eating, sleeping, diaper changes, and pumping progress with charts for doctor visits.
• Eve by Glow Period Tracker Standalone period tracking app focused on menstrual cycle monitoring and period prediction for women not trying to conceive.
• Glow Premium Premium subscription ($59.99/year with 7-day free trial, $100 lifetime access option) unlocking GlowGPT AI assistant, premium articles, comparative insights, health forecasts, advanced charting, daily health plans, premium support, profile customization, and ad-free experience across all four Glow apps.
• Glow Test Strips Bundle Ovulation and pregnancy test strips combo pack (70 total) with FDA-approved 2X ovulation prediction accuracy when paired with the Glow app.
• Glow Basal Thermometer High-precision basal body temperature thermometer for BBT tracking with seamless integration into the Glow app for pinpoint ovulation accuracy.
• Glow Smart Breast Pump Smart app-controlled wearable breast pump compatible with the Glow Baby app for tracking pumped milk volume.
• Glow Fertility Bundle Bundle package combining Glow ovulation and pregnancy test strips with basal temperature thermometer for comprehensive fertility tracking.
• GlowGPT Generative-AI assistant available through Glow Premium that delivers personalized health insights, daily health plans, premium articles, comparative insights, and health forecasts across Glow's apps.

Quantifiable outcome

• Women using Glow conceive in 3 cycles or less on average (based on study of 35,920 users in 2023)
• +1 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Partnerships

One partnership is on record.

• Asia GenomicscoreStrategic or Co-development Partner · 1 March 2025Glow merged with Asia Genomics in March 2025 to expand services across Southeast Asia, Australia, and New Zealand. This strategic merger enables Glow to extend its women's health platform reach into new geographic markets with genetic testing and reproductive health service integrations.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Natural Cycles: Natural Cycles is the first FDA-cleared birth control app, combining BBT-based prediction with a subscription model and a connected thermometer. It directly parallels Glow's ovulation prediction, BBT integration, and clinical-grade positioning, competing for the same trying-to-conceive and contraception-aware user.
• Clue: Clue is a Berlin-based period and ovulation tracking app with tens of millions of users, built on evidence-based content and a subscription premium tier (Clue Plus). It competes head-to-head with Glow's Eve by Glow and the Ovulation Tracker across the same persona (women tracking cycles, trying to conceive).
• Premom: Premom is a fertility tracking app combined with ovulation test strips and a connected basal thermometer, using a similar AI-driven ovulation prediction model. It is a close direct competitor to Glow's ovulation tracker, test strip bundle, and BBT hardware offering in the TTC segment.
• Flo Health: Flo is the global leader in period and ovulation tracking apps with reportedly 380M+ users and a freemium subscription model (Flo Premium). It is the most direct competitor to Glow across the period, fertility, and pregnancy lifecycle, with overlapping AI assistant (Flo AI) and similar target audience.

Emerging players

• Modern Fertility: Modern Fertility (acquired by Ro) offers at-home hormone testing and a fertility tracking experience targeted at women trying to conceive. It overlaps with Glow's TTC segment and pairs diagnostic testing with a digital tracking product, similar to Glow's combination of test strips + app.
• Elvie: Elvie makes connected femtech hardware including the Elvie Pump smart breast pump and Elvie Trainer. It directly competes with Glow's Smart Breast Pump in the postpartum/parenting segment and shares Glow's connected-hardware-plus-app model for women's health.
• Maven Clinic: Maven Clinic is a virtual women's and family health platform offering fertility, pregnancy, postpartum, and parenting care through a B2B2C employer model. It complements rather than directly competes with Glow's consumer app, but targets the same TTC, pregnant, and new-parent segments with a paid clinical-services layer.
• Oura: Oura sells a smart ring with cycle, fertility, and BBT tracking through its Oura App, plus a subscription (Oura Membership). It overlaps with Glow on reproductive health tracking, predictive algorithms, and connected hardware, but reaches users through a wearable-first rather than app-first experience.
• Withings: Withings makes connected health hardware including a smart thermometer (Thermo) and body scales, with a Health Mate app that aggregates cycle and fertility data. It parallels Glow's connected-hardware-plus-app approach in women's health, though Withings is broader across general health and not specialized in reproductive health.

Broad incumbents

• Apple Health: Apple Health is a pre-installed health platform on hundreds of millions of iPhones with native cycle tracking, fertility window prediction, and health data integration. It is the broadest incumbent competitor to Glow's app-first tracking experience and benefits from default distribution on Apple devices.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/glowhq
• Facebookfacebook.com/glow

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds2 records

Investors6 records

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 Glow