What we collect: nothing.
SigPocket is a mobile client for SigNoz. It is an open-source app (Apache 2.0) that runs entirely on your device and talks directly to the SigNoz instance you configure. There is no SigPocket account, no SigPocket backend, and no SigPocket-operated data pipeline.
Data the app collects about you
None. The developer of this app does not receive any data about you, your device, or your usage. The app does not include analytics SDKs (no GA, no Segment, no PostHog, no Amplitude), ad networks, or third-party tracking libraries.
Data you enter into the app
To connect to SigNoz, you provide a URL and an API key. These are stored on your device using the platform secure keychain (Expo SecureStore, backed by iOS Keychain Services or Android Keystore). They are never transmitted to anyone other than the SigNoz instance you configured.
Network traffic
The app sends HTTPS requests to one place only: the SigNoz URL you provided. The data returned (services, traces, logs, metrics) is rendered on-device and not persisted beyond the React Query cache, which lives in memory and is wiped on app exit.
App-self telemetry
To help you debug the app's own performance, SigPocket emits OTLP-formatted traces (cold starts, screen loads, SigNoz API call timings). These traces are sent to your SigNoz instance, the same one this app is monitoring. They are not sent anywhere else. You can disable this in Settings.
Push notifications (optional)
If you opt in to alert push notifications, SigPocket registers an Expo push token. That token is sent to a Cloudflare Worker we operate, which forwards Alertmanager webhooks from your SigNoz to Expo Push Service, which delivers to your device. The Worker's source is in this repository. It does not store alert payloads or device tokens beyond what is required to forward the message.
Children
SigPocket is a tool for software operators. It is not directed at children under 13.
Changes
If this policy changes materially, the app version that introduces the change will say so in its release notes, and this page will be updated.
Contact
Questions or concerns: open an issue at github.com/eknuth/sigpocket/issues.
last updated: 2026-05-12