---
title: "The people and notes stay private. — Kith"
description: "How Kith separates the immediate iPhone document, transition CloudKit mirror, and optional Significant Hobbies Hub copy."
canonical: https://kith.significanthobbies.com/privacy/
product: "Kith"
status: "Internal TestFlight only. No public invite or App Store listing."
last_updated: 2026-09-19
---

# The people and notes stay private.

How Kith separates the immediate iPhone document, transition CloudKit mirror, and optional Significant Hobbies Hub copy.

## Marketing-site analytics

This static marketing site uses Microsoft Clarity to understand aggregate page use, heatmaps, and session replays. Clarity may process interaction and device data under Microsoft's privacy terms; sensitive page content is masked. This tracking is limited to the website and is not included in the native app.

## The local working copy

Kith stores the people you add, explicit closeness, circle, birthday, how-you-met context, standing notes, colours, and dated log entries in one local JSON document. The app reads and writes that document first and remains useful offline.

## CloudKit during transition

Signed builds may mirror the full Kith document through the private CloudKit container associated with the user's iCloud account. This mirror remains available as migration rollback while the shared Hub path is validated.

## Optional private Hub synchronization

If you connect a Significant Hobbies account with Apple or Google, Kith synchronizes structured person fields and dated interaction records through the private Cloudflare Hub. Authentication and a successful sync are shown separately; offline or service failures leave local edits usable and retain waiting changes for retry.

## No advertising profile

The native app uses no advertising, IDFA, third-party analytics SDK, background address-book access, or cross-app tracking. If you use Apple’s contact picker, only the people you select are imported. Their names, birthdays, selected phone/email, organization and location details become local Kith content; approved content may also be copied to your signed-in Hub account. Apple, Google, Cloudflare, TestFlight, and the static marketing site may process service-level data under their own policies.

## Deletion and care

Removing a person also removes that person's notes from the local document. Because Kith is beta software with more than one private copy during transition, keep independent notes for information you cannot afford to lose and avoid including other people's private details in support screenshots.

## Effective date

Last updated 19 September 2026.

## Product boundaries

- No background address-book access, messaging, photos, or reminder notifications
- No inferred closeness, attention score, social graph, or public profile
- Optional account sync never replaces or blocks the local working copy
- No public TestFlight invitation or App Store release
- Current source targets iPhone and does not claim an iPad or web client

Canonical HTML: https://kith.significanthobbies.com/privacy/