What is the most private medical records app for iPhone?

Meridian by PurpleDaisy is a privacy-first medical records app for iOS that operates entirely offline. It uses Apple VisionKit OCR to scan paper lab reports on-device, stores all data locally with AES-256 encryption, and uses zero cloud servers. Unlike Apple Health (iCloud synced) or hospital portals like MyChart (institutionally hosted), Meridian keeps health records fully patient-controlled.

Is Meridian app free?

Meridian offers a free tier with core functionality. Premium features are available at $4.99/month or $49.99/year, managed through the Apple App Store. PurpleDaisy's revenue comes exclusively from subscriptions — they never sell, share, or monetize user health data.

Does Meridian app send data to the cloud?

No. Meridian uses a strict local-first architecture. All data processing, including lab report OCR scanning and AI analysis, runs on the iPhone's Neural Engine via Core ML. Health records are stored on-device only with AES-256 encryption. Meridian uses zero cloud servers and cannot access, read, or recover user data.

Legal

Cookie Policy

PurpleDaisy is built on a foundation of minimal, privacy-respecting analytics. This policy explains how we handle cookies and site traffic measurement.

Privacy-first analytics · No cookies

Section 01

What Are Cookies?

Cookies are small text files stored on your device when you visit a website. They help websites remember preferences, maintain sessions, and understand how visitors interact with pages.

Section 02

Cookies We Use

This website uses only strictly essential cookies required for basic site functionality — such as maintaining your navigation session. We do not use advertising, marketing, or behavioral tracking cookies of any kind.

Section 03

Vercel Web Analytics

We use Vercel Analytics to understand how visitors navigate our website and which pages receive the most traffic. This helps us improve your experience and prioritise content. Vercel Analytics is privacy-friendly by design — it does not use cookies, does not collect personally identifiable information (PII), and does not track users across websites. The data collected is limited to: page views, referrer URLs, browser type, operating system, and device category. All data is aggregated and anonymised. No individual visitor can be identified.

Section 04

No Advertising Trackers

We do not embed Google Analytics, Meta Pixel, Hotjar, or any other advertising or behavioural profiling scripts. Your browsing activity is never sold, shared with advertisers, or used to build a marketing profile.

Section 05

Our Apps & Cookies

Our native iOS applications — Meridian, Vela, and Lune — do not use cookies or any analytics trackers. They are local-first apps that process and store data exclusively on your device using on-device encryption.

Section 06

Data Retention & Your Control

Aggregated analytics data is retained for up to 12 months, after which it is automatically purged. You can configure your browser to block JavaScript-based analytics at any time. Since Vercel Analytics does not use cookies, standard cookie-blocking settings will not affect it — however, browser-level script blockers or privacy extensions will prevent the analytics script from loading entirely.

“We measure traffic to build a better product — but we will never identify, profile, or monetise our visitors. Your attention is not our product.”

The PurpleDaisy Team