Last updated 20 July 2026.
Hamon is built so there is nothing to collect. We do not collect any data. There is no account, no analytics, no advertising identifiers, and no third-party tracking SDKs.
Hamon does not ask for your name, email, or any personal information, and it has no way to send your data anywhere. The steels, equipment, and target hardness you choose stay on your iPhone.
Every schedule is composed entirely on your device from a bundled, cited data set of heat-treat values. The app makes no network connections except to Apple's App Store, and only for the optional one-time purchase.
Shop-cards and schedules you save stay on your device. We never receive, store, or have access to them. If you export a card as a PDF, that file goes wherever you choose to send it, under your control.
The optional Full Library unlock is handled entirely by Apple. Hamon never sees your payment details. Apple's own privacy policy governs that transaction.
Questions: hadger.support@gmail.com · Home