Technical FAQ

How fast are lookups?

Target: < 2 seconds

• Local tech glossary: Instant (stored locally, 85+ terms)
• Cached lookups: < 500ms
• New AI queries: 1–2 seconds via Cloudflare Workers edge nodes

Where does pronunciation data come from?

• Official docs from Apple, Google, Meta, Amazon
• YouGlish corpus samples
• Developer community consensus
• Engine: Google Cloud Text-to-Speech (Neural voices)

How are sync conflicts resolved?

DevGlish uses last-write-wins based on clientUpdatedAt timestamps. Offline edits sync automatically when reconnected.

Can word book data be exported?

Yes. Settings → Data → Export → CSV format. Anki and Notion export are on the roadmap.

Which AI model is used?

Claude (Anthropic) — chosen for accuracy with technical terms, structured JSON output, and multi-language understanding.

Each request includes: selected text + app context. Never includes: document content, user identity, or browsing history.

Why isn’t DevGlish on the Mac App Store?

1. Accessibility permissions work better outside the App Store
2. Faster iteration without App Store review delays
3. Flexible pricing without Apple’s 30% fee

Where is data stored?

• Local: SwiftData in ~/Library/DevLingo/ (FileVault encrypted)
• Cloud: Cloudflare D1, per-user isolated, TLS 1.3 encrypted

Data is deleted within 30 days of account deletion.

Nota

DevGlish does not share user data with any third parties.