Blurb privacy policy

Updated September 24, 2026. Blurb is an Android app (com.notifsummarizer.app) developed by Ali H. This policy explains what Blurb accesses, where that information goes and the choices you have. Blurb has no accounts and no ads, and the developer does not run a server that receives your messages.

Notification access

With your permission, Blurb reads notifications from the messaging apps you select, including message text, sender names, conversation titles and timestamps, so it can summarize them, even while the app is closed. It does not read your SMS database or contacts. Your list of installed apps is used on your phone only to let you choose apps, and is never uploaded.

How summaries are made

• On-device mode: a downloaded AI model summarizes messages on your phone. No message text is uploaded unless you turn on cloud fallback.
• Cloud mode, cloud fallback or a cloud test: Blurb sends message text and sender names directly to the provider you choose (Google Gemini, OpenAI or Anthropic) or to your own custom server, using your API key.

What a cloud provider does with that data is governed by its own terms. Some, such as the unpaid Gemini API, may use it to improve their products or have it reviewed by people. For private messages, use on-device mode with cloud fallback off. Optional redaction tries to remove identifiers before upload, but it can miss details.

Provider terms: Gemini API, OpenAI and Anthropic.

Data stored on your phone

Blurb stores your settings and API key in encrypted app storage, a history of up to 200 recent summaries and errors, and temporary copies of unread messages so summaries can be updated and recovered after interruptions. It also stores downloaded models, your free-preview count and your Pro status. Android backup is turned off, so this data is not copied to your Google account.

Optional diagnostics

Share usage diagnostics, in Settings > Privacy, is on for new installs and off for updated installs that never chose. It never sends messages, summaries, contact names or API keys.

It sends crash reports and reliability information, such as whether a summary was shown, which engine and provider were used, how long it took and why the app last closed. It also sends how Blurb is used: when it is opened and closed, which screens and setup steps you visit, which settings are on, daily counts of summaries opened or dismissed, and the steps of a Pro purchase or restore, never payment details. Reports include the app version, Android version and device model.

Reports are sent to Sentry. They carry a random ID that Blurb creates and resets whenever you change the setting. It is not tied to your name or account. Sentry receives your IP address as part of the connection. Turning the setting off deletes unsent data. Earlier versions also offered optional masked session recordings; that feature has been removed. Data already sent is kept according to Sentry's retention settings and privacy policy.

Other services

• Google Play processes Blurb Pro purchases. Blurb receives purchase status to unlock and restore Pro, never your payment details.
• Firebase Remote Config (Google) is checked about once a day, while the app is open or running in the background, for recommended model names, update notices, and switches the developer can use to pause Blurb for one messaging app or pause its sensitive message notices while a problem is fixed. Google receives a Firebase installation ID and connection information, such as your IP address. Firebase Analytics is not used.
• Hugging Face hosts model downloads and receives normal connection information, such as your IP address.

These services handle data under their own privacy policies, including Google's privacy policy.

How information is used

Blurb uses information only to summarize your messages, run and restore your purchase, and fix bugs and improve the app. The developer does not sell your data or use it for advertising.

Your choices

• Pause Blurb, change which apps it monitors, or revoke notification access in Android settings.
• Clear saved summaries with History > Clear history, and delete models in Settings.
• Turn diagnostics off in Settings > Privacy.
• Uninstall Blurb or clear its storage to delete everything it keeps on your phone.

Deleting local data cannot recall data already sent to a cloud provider or Sentry. To ask about diagnostic data already received, email the developer. Because reports use a random ID, it may not be possible to match them to you.

Children

Blurb is not directed at children under 13 and does not knowingly collect their personal information.

Changes

Changes to this policy are posted here with a new updated date.

Contact

Email Ali H at support@blurb.fyi with privacy questions. Bug reports and feature requests are welcome on the support page. GitHub issues are public, so do not include private messages, API keys or personal details.

This website

This website is hosted on Cloudflare and has no analytics, ads or embedded forms. Cloudflare processes connection information, such as your IP address, when you visit, under Cloudflare's privacy policy. GitHub hosts the issue tracker and a copy of this site at its old address, and processes connection information when you use them, under GitHub's privacy statement.