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Birchline Digital · Case Study · Product Engineering · Software
Birchline Digital × Noor Tracker — A Faith-Aligned Cycle Tracker, Engineered for Trust
Noor Tracker came to Birchline Digital with an emotionally sensitive brief: build a cycle tracker that respects Islamic jurisprudence, protects user privacy by default, and feels calm rather than clinical. We engineered the product — application logic, data architecture, subscription experience, and interface — alongside its brand, and shipped in eight weeks.
Performance
98
Lighthouse
Accessibility
100
WCAG AA
SEO Score
100
Lighthouse
Trackers
0
By design
The Challenge
- ▸Existing cycle trackers monetize personal data and ignore religious context entirely.
- ▸Multiple madhhabs interpret ṭahārah rules differently — the product had to honor each without picking sides.
- ▸The audience is privacy-skeptical by default and needed visible, plain-language reassurance.
Birchline Digital's Approach
- ▸Birchline Digital ran a discovery sprint with practicing women across four madhhabs to map real edge cases.
- ▸We built a soft, botanical visual language — sage greens, cream surfaces, generous spacing — to replace the typical medical pink aesthetic.
- ▸Local-first data architecture: nothing personal leaves the device unless the user explicitly opts in.
- ▸Madhhab-aware logic surfaces the right ruling at the right moment without burying the user in settings.
The Outcome
- ▸Lighthouse 98 / 100 / 100 (performance, accessibility, SEO) on launch day.
- ▸Zero third-party trackers and zero analytics cookies — verified externally.
- ▸Featured in two Muslim women's wellness newsletters within the first month of launch.
- ▸Ongoing Birchline Digital care plan keeps the product fast, secure, and free of regression.
Services Delivered
Product EngineeringWeb Application DevelopmentApplication UXSubscription ProductBrand IdentityOngoing Engineering
Stack & Tooling
ReactTypeScriptTailwindLocal-first storageVite
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