Push Notification Debugger — ASO

By Jan-Hendrik Damerau on AppTrack Ninja.

Push notifications failing? This macOS app helps you send, test, and debug APNs and Firebase Cloud Messaging notifications directly from your development setup. Inspect error responses, validate payloads, test device tokens, and diagnose delivery issues faster with support for APNs and FCM. The app supports APNs with P8 keys and P12 certificates, custom JSON payloads, and direct configuration of APNs HTTP/2 headers such as Push Type, Priority, Expiration, and Collapse ID. It also supports Firebase Cloud Messaging via the FCM HTTP v1 API, including modern authentication with Google service acc…

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