TextPolish: Real-Time AI Writing Assistant
Building an ultra-low latency writing utility with secure proxy middleware.
Project Profile
Technologies
This project features automated end-to-end regression runs checking auth flows, payment syncs, and telemetry channels prior to production release.
01 / The Challenge
Mobile writing tools often suffer from high latency, send raw API keys from the client, or lack intuitive controls to refine tone instantly.
02 / Our Solution
We built a SwiftUI app and Share Extension backed by a Cloudflare Workers proxy. The proxy handles API keys, sanitizes input, and routes text-polishing requests to OpenAI with custom temperature adjustments for distinct tones (Professional, Humanize, Engaging).
03 / System Outcome
TextPolish achieved sub-second response times globally, serving thousands of writing corrections monthly while keeping API costs near zero via Edge caching.
System Architecture & Data Flow
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