Cache privacy policy

Happy Little LLC · Effective 28 October 2026

Cache is an offline preparedness app. It runs on your phone, and it is built so that your information stays there. We do not run accounts, we do not collect analytics or crash reports, and we show no ads.

What stays on your phone

• Your conversations with the assistant, which runs on the phone itself.
• Your saved places, settings, downloaded maps, libraries, models, weather data and reported answers.
• API keys you enter for optional services. They are kept in the phone's secure storage and sent only to the service they belong to.
• Your location, when you allow it. It is used on the phone for maps, directions and "near me" answers.

We (Happy Little LLC) receive none of this.

When Cache connects to the internet

Cache works offline. When you are online and you choose to use something that needs a connection, the phone contacts that service directly:

• Downloads you start: models from Hugging Face, libraries from the Kiwix catalogue, and maps, road routing, region outlines and the data source catalogue from cache.echo6.co. These requests carry the usual technical details of any download (such as your IP address), but no personal information.
• Live data you switch on (for example weather from Open-Meteo, alerts from the US National Weather Service, wildfires from NIFC): the phone sends the coordinates of the place you asked about, so the service can answer for that place.
• Web search, if you set it up with your own key: your search is sent to the provider you chose, under that provider's own privacy policy.
• Map tiles while you browse online: the visible area is fetched from the map host shown in the app's credits.
• Sharing and sync, if you set it up: your devices connect to each other directly and encrypted. When they cannot reach each other directly, public relays pass the encrypted traffic along; relays and lookup services see device keys and network addresses, never the content.

Each of these services handles requests under its own privacy policy. Cache sends them only what the request needs.

Notifications and background updates

If you allow notifications, Cache can update weather and alerts in the background and notify you of new warnings near your saved places. This uses the same services as above and the last location saved on the phone.

Children

Cache is not directed at children under 13 and does not knowingly collect information from anyone.

Deleting your data

Everything Cache keeps is on your phone. Deleting the app, or a model, library, region or place inside it, deletes it.

Changes

If this policy changes, the new version will be posted here with a new effective date.

Contact

Happy Little LLC · [email protected]