Expo Geolocation Doctor

Diagnoses why Google-based geolocation fails in certain regions for Expo apps

Problem

An Expo developer building a cross-platform travel app found geolocation and LBS search don't work in mainland China because they rely on Google services. Error messages are opaque, making it hard to tell if the issue is permissions, network, or SDK—costly to debug.

Solution

A diagnostic tool for mobile developers that runs a checklist on device or simulator to detect whether location failures stem from unavailable Google Play Services, network region blocks, or misconfigured permissions, and suggests alternatives like AMap/Baidu Location SDK integration.

Users

Expo/React Native developers building cross-platform apps for the Chinese market

MVP

Check Google Play Services availability; test network regional reachability; validate location permissions and config files; generate a diagnostic report with alternative solution links; provide AMap integration sample code

Revenue

Free diagnosis; paid detailed migration guide, sample project templates, and priority support

Why now

Expo geolocation issues in China are long-standing and community Q&A is fragmented, with no tooling solution. Indie developers can quickly ship a one-click diagnostic.