Privacy Policy
Overview
OpenTime is a personal productivity app that shows your free and busy time slots. The privacy story is simple: we do not collect, store, or transmit any of your data to our servers, because we do not run any servers.
Data we collect
None. OpenTime does not collect, store, or share any personal information. There is no account to create. No usage data is sent to the developer.
Calendar access
OpenTime asks for full access to your device's calendars through Apple's EventKit framework, because iOS has no read-only option. It uses that access to compute your availability and show it on screen, and it only writes to your calendar when you create an event yourself. Calendar data:
- Is processed entirely on your device
- Is never sent to any server, API, or third party
- Is never stored by OpenTime; only your calendar choices and app settings are saved, on your device
- Is never used for analytics, advertising, or profiling
Network communication
OpenTime makes no network connections. It has no servers to talk to, performs no sync, and sends nothing to the developer, to Apple, or to anyone else. The app is fully functional offline.
Pick-a-time links
You can share a pick-a-time link. The link contains only what you chose to share: the free times, the meeting length, your time zone, and an optional first name. It never contains event names, attendees, or any other calendar details. The times are encoded in the part of the link after the # sign, which browsers and apps do not send to the web server, so lulls.app never receives them.
When the other person picks times, they can send them back to you as a reply link (lulls.app/reply). It carries only the up to five times they chose, the meeting length, their time zone, the first name on your link and an optional name of their own, in the same part after the # sign, so lulls.app never receives those either. They send it themselves, through whatever app they choose.
When someone opens a link, it opens in the OpenTime App Clip on iPhone, in the OpenTime app if installed, or at lulls.app/pick in a browser. Each reads the times from the link on their device. Loading the lulls.app/pick page is an ordinary web request handled by Cloudflare, our host; it does not include the times.
The lulls.app MCP server
lulls.app/mcp is a public service for AI assistants that support the Model Context Protocol. It is separate from the app and only used if you or your assistant connect to it. When an assistant asks it to make a link, the request contains the free times the assistant sends; when asked to read a link, the request contains that link. The server uses them only to answer that request. It stores nothing, keeps no record of requests, and has no access to any calendar. Requests pass through Cloudflare, our host.
On-device Apple Intelligence
On supported devices, the natural-language query bar uses Apple's on-device FoundationModels framework to interpret phrases like "tomorrow afternoon for 30 min." This processing happens entirely on your device. No query text is sent to Apple's servers or to anyone else.
Widgets and Live Activities
Home screen widgets and Live Activities use the same on-device calendar access to display your availability. iOS keeps what they show on your device so it can display it. No data leaves your device.
Third-party services
OpenTime uses no third-party SDKs, analytics, crash reporting, or advertising frameworks. The binary contains only Apple frameworks and OpenTime's own code.
Data retention
Since no data is collected by the developer, there is nothing for us to retain or delete.
Children's privacy
The app does not collect information from anyone, including children under 13.
Changes
If this policy changes, the updated version will be posted at this URL.
Contact
Questions? Reach out at hmuapi.com.