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Luna — Fact Sheet

One page, every claim with its source. Wherever possible we link independent evidence; where it is our own statement, we say so. For journalists, directories and anyone who wants to check rather than trust.

Last updated: July 30, 2026

Claim	Value	Source
Platforms & availability	iOS and Android · 31 countries · 24 languages	App Store · Google Play
Trackers in the Android app	1 — Sentry (crash reporting); no advertising SDK, no analytics SDK, no advertising ID, no location permission	independent measurement Exodus Privacy · July 30, 2026
Android permissions	23 (reduced from 38 in July 2026 by removing legacy launcher-badge entries)	independent measurement Exodus Privacy · July 30, 2026
Encryption	health entries are encrypted on the device (AES-256) before sync; servers store ciphertext	own statement explained on the security page
Server location	Hetzner Cloud (EU), self-hosted — no US cloud providers in the core data chain	own statement explained on the security page
Backups	three-tier backup, EU locations (Hetzner + Scaleway)	own statement
Maximum Privacy mode	optional: the key then exists only on the device — recovery by us becomes technically impossible	own statement explained on the security page
AI coach (Sofía)	asked anonymously (no name, no email, no journal); processed on EU-hosted AI, not stored; not zero-knowledge	own statement explained on the security page
Business model	subscriptions and one-time passes only; the treatment pass expires without auto-renewal; no ads, no data sales	own statement
Company	icoso consulting S.L., Santander, Spain	Imprint

What Luna is not

No end-to-end encryption claim. Correct is: encrypted on the device (AES-256), EU-hosted. Zero-knowledge applies only in Maximum Privacy mode.
Not open source (yet). Publishing the encryption layer is planned — after the US launch, no date promised. If auditability is your core criterion, drip or Euki serve you better today.
An account is required for sync. Local-only apps without accounts have a structural advantage there.
Sofía, the AI coach, is not zero-knowledge — she is asked anonymously, and not using her is always an option.
Not a medical device. Luna documents and reminds; it does not diagnose, does not give treatment advice and does not calculate medical prognoses.

Check for yourself

Independent tracker report: Exodus Privacy · How Luna protects data: Security page · Comparison with Flo, Clue, drip and Euki: Compare page · Questions: luna@icoso.es