Apollo Engine – Visual push notification testing and batch preview for mobile

Summary: Apollo Engine is a browser-based QA tool that lets mobile teams preview push notifications instantly without triggering servers or waiting for test builds. It supports batch previews via CSV uploads and exports high-resolution PNGs while keeping all data local to the browser for privacy.

What it does

Apollo Engine provides a visual designer to preview notifications on devices like the iPhone 16 Pro and a batch engine to upload CSV files and preview hundreds of notifications quickly. It runs entirely in the browser using a local-only protocol to ensure data privacy.

Who it's for

Mobile developers and QA teams needing precise, real-time push notification previews without deploying or server dependencies.

Why it matters

It eliminates delays and complexity in testing notification appearance by enabling instant, privacy-focused previews directly in the browser.