Articles
Private cycle tracking, explained plainly.
Practical writing for people who want reproductive health tracking without accounts, ads, analytics SDKs, or app-owned servers for sensitive data.
Privacy and Architecture
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Why Local Cycle Uses No Account: A Privacy Decision Tree
The threat model most people do not know about, and the design choices behind an offline period tracker with no app-owned servers.
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Period Tracker Without an Account: What It Should Mean
What no account should mean for privacy, backups, reminders, doctor reports, and moving phones.
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Private Period Tracker: A Checklist Before You Trust an App
A practical checklist for evaluating accounts, ads, analytics, encrypted storage, exports, and deletion.
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After the Flo Settlements: How to Choose a Private Period Tracker
What the 2025 Flo litigation outcomes involving Google and Meta mean for period tracker users, and how to choose by architecture.
Health Education
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Perimenopause Symptom Checklist: The Signs Generic Trackers Often Miss
A practical symptom checklist, safer tracking guidance, and notes on when to talk with a clinician.
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Perimenopause Tracker: What to Track Beyond Period Dates
Hot flashes, sleep, mood, energy, sexual health, HRT, interventions, and doctor-ready reports.
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PCOS and Irregular Cycles: Why Prediction Windows Matter
Why irregular cycles need honest date ranges instead of one exact prediction that pretends certainty.
Comparisons
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Local Cycle vs Flo: A Privacy-Focused Period Tracker Comparison
A fair comparison of account requirements, local storage, analytics, backups, pricing, and privacy model.
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Local Cycle vs Clue: A Privacy-Focused Period Tracker Comparison
Cloud convenience from a trusted company versus an architecture where trust is barely needed.
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Local Cycle vs drip: Two Local-First Period Trackers Compared
A free open-source fertility awareness tool versus a paid life-stage tracker. A comparison between allies.
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Local Cycle vs Euki: Privacy-First Period Trackers Compared
A nonprofit safety-focused tracker versus an encrypted life-stage health record. Both keep data on-device.