Log
Every visit, medication, procedure, and invoice — append-only, time-stamped, hash-chained. Nothing can be silently altered.
Your pet's medical record —
private, tamper-evident, yours.
Log every vet visit, track costs, catch overcharges.
Yours alone — no ads, no sharing, full offline support.
Open cloud log
On iPhone: tap Share → Add to Home Screen to install petlogOS.
Protect
Your data stays yours. AI reads your documents only when you ask, and only confirms what you approve. No training, no sharing.
Audit
The cost-audit engine checks every invoice against UK benchmark data, flags overcharges, and produces a plain-English report.
How tamper-evidence works
Each log entry's fingerprint is computed from its content and the fingerprint of the entry before it — like links in a chain. Edit any past entry and every fingerprint after it breaks. The chain is verified locally and in the cloud, automatically.