Short, because there is little to tell
NumiAssist is designed to know as little about you as possible. This page describes everything the app and this website do with data – it fits on one page because that's all there is.
Effective 10 August 2026 · applies to the NumiAssist iOS app and numiassist.com
The summary
- Coin photos are sent to our server only when you ask for recognition suggestions, processed in memory, and never stored.
- There are no accounts – nothing to register, no profile to keep.
- There is no advertising and no tracking – no ad SDKs, no analytics profiles, no selling of anything to anyone.
- Payments are handled entirely by Apple; we never see your payment details.
Your photos
The core of NumiAssist – capture, processing, lot assembly, export – runs entirely on your iPhone. Your photos live in the app on your device, under the protections iOS gives all app data.
One feature uses the network: recognition suggestions. When you explicitly request them, the photos of the coin's two sides are sent over an encrypted connection to our server, which forwards them to a machine-learning model to read the coin's visible attributes. The photos exist in server memory only for the duration of that single request. They are not written to disk, not logged, not used for training, and not retained in any form. When the response is sent, the photos are gone.
If you never tap the suggestions button, the app never makes that request – and works fully offline.
What we don't collect
The app has no accounts, so we hold no names, emails or passwords. We run no advertising and embed no third-party ad or tracking SDKs. We do not build profiles of you or your collection. Your lots, descriptions and photos stay on your device unless you export them yourself.
Subscriptions
The subscription and free trial are processed by Apple through your Apple ID. Apple's handling of that data is described in Apple's own privacy policy; we receive only anonymous confirmation that a subscription is active – never your identity or payment details.
This website
numiassist.com is a static site. It sets no cookies and runs no analytics. Like nearly every web server, ours keeps standard technical logs (IP address, time, requested page) for security and troubleshooting; they are rotated routinely and used for nothing else. Fonts are served by Google Fonts, which receives the standard technical request data when the font files load.
Changes
If this policy changes, the new version appears on this page with a new effective date. We won't quietly weaken it: the in-memory, never-stored handling of photos is a design principle of the product, not a temporary courtesy.
Contact
Questions about privacy: support@numiassist.com.