Privacy Policy — Trace

Last updated: May 25, 2026

Trace is built around a single rule: your data stays on your device unless you choose to send it somewhere yourself.

What Trace does

Trace is an iOS app that captures items you share to it from the iOS share sheet (links, images, text). It stores those items locally and presents them as a daily report. It can also export those items, at your direction, to your own Notion workspace, your own Obsidian vault, or a folder in your iCloud Drive.

What data the developer collects

None.

The developer of Trace (Masayuki Ishido) does not collect, receive, store, or transmit any information about you, your device, or what you share to the app. Trace has no analytics SDK, no crash reporting service, no third-party identifiers, no advertising frameworks, and no accounts.

Data the app stores on your device

Trace stores the following on your device, in its private storage:

• The text, links, and images you share to it
• Page metadata (title, description, thumbnail) for shared URLs, fetched automatically when you share a link
• Text extracted from shared images by on-device OCR (Apple’s Vision framework)
• Your app settings

This information is stored in an SQLite database inside the app’s App Group container. It never leaves your device unless you take an explicit action to export it.

Network requests the app makes

The app makes the following network requests, all initiated by your actions:

• Fetching page previews. When you share a link to Trace, the app fetches the page so it can read the title, site name, description, and preview image. These requests go directly to the page you shared.
• Embed lookups. For X (Twitter) and YouTube links, the app uses public oEmbed endpoints to fetch a clean title and source.
• Notion API. If, and only if, you connect a Notion workspace and choose to send an item to Notion, the app sends that item to Notion’s API using the authorization token you granted.

The developer does not operate any server. Trace does not send any data to a server controlled by the developer.

Third-party services

Trace does not bundle any third-party analytics, advertising, attribution, or tracking SDKs.

If you choose to use the Notion export feature, your interaction with Notion is governed by Notion’s own privacy policy: https://www.notion.so/Privacy-Policy.

If you choose to export to iCloud Drive or to an Obsidian vault, those writes happen on your device’s local file system and are governed by Apple’s iCloud terms (for iCloud) or are entirely local to your device (for Obsidian).

Children

Trace is not directed to children. The app collects no data, so there is nothing specific to children’s data that applies.

Data retention and deletion

All data Trace stores about you is on your device. Uninstalling the app removes all of it. If you have exported items to Notion, Obsidian, or iCloud Drive, those copies remain in those locations until you delete them there.

Changes to this policy

If the developer ever changes how Trace handles data, this policy will be updated. The “Last updated” date at the top of this page will reflect the most recent change.

Contact

If you have a question about this policy, email masaishido@gmail.com.