What PERIOD. does

PERIOD. is a Dutch privacy-first menstrual cycle tracking app founded in March 2026 in Amsterdam by Lisa Volkers (founder, product/brand) and Diederick Trampe (co-founder, engineering). The company operates on a bootstrapped model with no venture capital, no advertisers, and no data selling. The iOS and Android app offers cycle tracking, ovulation and period predictions, smart pattern recognition, daily phase insights, and an AI Cycle Assistant powered by Google Gemini through a secured gateway that requires explicit in-app opt-in consent and excludes identifying fields from queries. All data is hosted on EU infrastructure (Supabase Frankfurt) with row-level database security, AES-256 encryption at rest, TLS 1.2+ in transit, and SOC 2 Type II / ISO 27001:2022 certified hosting under GDPR. The app supports 19 languages and integrates with Google, Apple, and Outlook calendars.

The company generates revenue through two streams. (1) Consumer freemium: core tracking, predictions, daily insights, and a 3-questions-per-day AI cap are free; PERIOD. Plus unlocks unlimited AI assistant usage at approximately €34.99 per year, with future integrations for smartwatch and Oura Ring planned. (2) B2B enterprise via PERIOD. at Work, a corporate wellness benefit priced at €24–€30 per employee per year (tiered by headcount) with anonymous activation codes, a 3-month pilot at €1.50 per employee per month, and a 5% discount for annual upfront payment. Distribution relies on organic App Store and Google Play downloads, earned media coverage (Inc., VICE, Het Parool, BNR, Bedrock, Flair, NH Nieuws), a 62+ article blog, and NGO partnerships with Plan International NL and Voices for Women — with no paid advertising.

Since launch, PERIOD. has reached 10,000+ users in under two weeks entirely organically, achieved #1 in Health & Fitness in the Dutch App Store, and operates across the Netherlands, Germany, France, Belgium, and the United Kingdom. The company targets the Dutch corporate wellness market (estimated €742M, growing 6.2% annually per IMARC, 2024) through PERIOD. at Work, framing its offering against documented productivity loss of approximately €75,000 per year per 100 female employees from menstrual symptom-related presenteeism.

Name

PERIOD.

Legal name

PERIOD. BV

Website

https://myperiod.app

Company type

Private

Founded year

2026

Operating status

Operating

Headcount range

1–10 employees

Short description

PERIOD. is a bootstrapped, Dutch privacy-first menstrual cycle tracking app founded in Amsterdam in March 2026, offering iOS and Android apps with AI-assisted cycle insights, free core features and a paid Plus tier, plus a B2B employee wellness product (PERIOD. at Work) for European employers.

Ownership category

akta.pro rank

Product category

Menstrual Health Software

akta.pro primary industry

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

Keywords

• Menstrual cycle tracking
• Women's health software
• Fertility awareness app
• Corporate wellness benefits
• Privacy-first health platform

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

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

Revenue model

1. Consumer Freemium Subscription (PERIOD. Plus): Core cycle tracking, predictions, daily insights, and basic AI assistant (3 questions/day) are free. PERIOD. Plus unlocks unlimited AI assistant usage at ~€34.99/year for consumers. The company has stated that basics will always remain free and that the paid layer exists to fund extras without monetizing user data.
2. PERIOD. at Work (B2B Enterprise): Corporate wellness employee benefit sold to employers at €24–€30 per employee per year (tiered by headcount). Includes anonymous activation codes, full PERIOD. Plus access for each employee, and employer dashboard showing only activated code count (no individual data). Pro rata quarterly invoicing. Pilot option at €1.50/employee/month for 3 months.
3. Future Premium Features: The company is exploring paid layers with extras such as smartwatch or Oura Ring integration, so that the basics remain free and accessible to everyone.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

PERIOD. builds and sells a privacy-first menstrual cycle tracking mobile app (iOS and Android) with cycle predictions, daily insights, an AI Cycle Assistant, and educational onboarding. The free core product is monetized through PERIOD. Plus (~€34.99/year consumer subscription for unlimited AI use) and through PERIOD. at Work, a B2B employee wellness benefit sold to employers at €24–€30 per employee per year with anonymous activation codes. The company does not sell user data, does not run ads, and hosts all data on EU servers under GDPR.

Product overview

PERIOD. is a Dutch privacy-first menstrual cycle tracking app consisting of a free core product and a premium Plus subscription. The core app provides cycle tracking, symptom logging, AI-powered assistant, and personalized predictions at no cost. PERIOD. Plus (€34.99/year) adds unlimited AI assistant access and smart device integrations. The enterprise offering PERIOD. at Work extends the product to employers as a workplace wellness benefit with bulk licensing, anonymous activation, and employer dashboard features.

Differentiator

Problem solved

Functional benefit

Products and services

• PERIOD. (Free) Free menstrual cycle tracking app for individual women offering cycle logging, period and ovulation predictions, daily insights, educational onboarding on cycle phases, and a basic AI Cycle Assistant (3 questions/day). Includes calendar sync, 19-language support, and free CSV import from competitor apps. No ads, no data selling, hosted on EU servers.
• PERIOD. Plus Premium consumer subscription (~€34.99/year) that unlocks unlimited AI Cycle Assistant usage and planned integrations with smartwatches and Oura Ring. Sold to individual users seeking unrestricted AI cycle Q&A.
• PERIOD. at Work B2B workplace wellness benefit sold to Dutch and European employers at €24–€30 per employee per year (tiered by headcount) with a 3-month pilot at €1.50/employee/month. Includes unlimited AI Cycle Coach in 19 languages, anonymous activation codes, Doctor PDF with 6 months of data, calendar sync, and HR reporting. Employers see only the number of activated codes — no individual cycle data.

Quantifiable outcome

• 10,000+ users in under two weeks with zero ad spend, reaching #1 in Health & Fitness in the Dutch App Store
• +2 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability4 records

Feature5 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Plan International NLcoreStrategic or Co-development Partner · 1 May 2026Collaboration with Plan International NL on period poverty and cycle stigma in the Netherlands. Announced May 2026 via Instagram. Focuses on making period education more accessible and addressing menstrual equity, combining PERIOD.'s app with Plan International's advocacy reach.
• Voices for WomenminorStrategic or Co-development Partner · 1 May 2026Collaboration on women's health. An article was set to go live per the media page (May 2026).
• Supabase (database hosting)coreTechnology or IntegrationSupabase hosts PERIOD.'s Postgres database on EU servers. Data is encrypted at rest (AES-256) and in transit (TLS 1.2+). Supabase is a US-incorporated company with EU hosting region. Covered under Standard Contractual Clauses (Module 2, 2021/914) per the privacy policy.
• Google LLC (Gemini) — AI Cycle AssistantcoreTechnology or IntegrationGoogle Gemini powers the AI Cycle Assistant via a secured gateway. Under the gateway's terms, user messages are not used to train AI models and are not retained beyond response generation. Explicit in-app consent required before any data is sent. Email address and sexual activity flag are deliberately NOT sent to the AI provider.
• Apple Inc. — App Store DistributioncoreChannel Partner/ Reseller/ DistributorApple distributes the PERIOD. app via the App Store and handles in-app purchase billing for PERIOD. Plus subscriptions. Apple sees app download data and crash stats under its own policies; PERIOD. does not receive that personal data. Apple is certified under the EU-US Data Privacy Framework.
• Google LLC — Play Store, OAuth, WorkspacecoreChannel Partner/ Reseller/ DistributorGoogle distributes the Android app via Google Play Store and handles Play Billing for Plus subscriptions. Optional Google Sign-In (OAuth) is available as an alternative to email/password login. Google Workspace hosts PERIOD.'s team email ([email protected], [email protected]).

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Natural Cycles: Natural Cycles is an FDA-cleared, subscription-based contraception and cycle tracking app. PERIOD. offers similar cycle prediction functionality with a privacy-first model and publishes content targeting users wanting to switch from Natural Cycles.
• Ovia Health: Ovia Health is a women's and family health tracking platform owned by Labcorp. PERIOD. targets users switching from Ovia, particularly around employer-sponsored health programs where US-hosting and data practices are concerns.
• Flo Health: Flo is the world's most-downloaded period and ovulation tracker. PERIOD. explicitly positions itself against Flo's documented data-sharing practices and publishes step-by-step switching guides from Flo, making it the most direct competitor.
• Clue: Clue is a Berlin-based menstrual and fertility tracking app with a strong reputation for science and design. PERIOD. directly addresses users switching from Clue and competes for the same European privacy-conscious segment.
• Stardust: Stardust is a US-based hormonal cycle tracker that has faced criticism over data practices. PERIOD. highlights Stardust as a competitor users are migrating away from, with a dedicated switching guide.

Emerging players

• Oura: Oura is a smart ring with cycle and fertility insights. PERIOD. has explicitly identified Oura Ring integration as a future premium feature, making Oura a complementary product rather than a direct competitor.
• Maven Clinic: Maven Clinic is a virtual women's and family health benefits platform often sold to employers. PERIOD. at Work targets a similar buyer (HR teams) with a narrower, more privacy-focused women's health benefit.
• Glow: Glow is a fertility and menstrual tracking app with a broader women's health ecosystem. It competes with PERIOD. on cycle tracking while expanding into conception and pregnancy, overlapping on the cycle-tracker portion.

Broad incumbents

• Apple Health: Apple Health includes cycle tracking integrated into iOS and serves as a default, broad-platform alternative. PERIOD. competes for users who want a dedicated, privacy-first tracker rather than a general health app bundled with iOS.
• Google Fit: Google Fit is Google's general health and activity platform. It overlaps with PERIOD. on health tracking but lacks dedicated cycle and reproductive health features, making it an adjacent rather than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/myperiod.app
• Facebookfacebook.com/myperiodapp

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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 PERIOD.