NoNetPlay: AI Interpreter

Real-time simultaneous interpretation, completely offline. NoNetPlay translates live conversations as you speak — your voice never leaves your iPhone, even when you're 30,000 feet up.

Unlike apps that need to download language packs every time you want a new language, NoNetPlay's entire AI translation engine lives on your iPhone. Once installed, you don't need WiFi. Ever.

Simultaneous Translation — 15+ Language Pairs

• English ↔ Chinese, Japanese, Korean, Spanish, French, German, Portuguese, Italian, Russian, Arabic, and more • Speak in one language, hear it in another — automatic language detection • Voice recognition + AI translation engine, both run entirely on-device • Sentence-by-sentence output with synchronized voice playback — no waiting

AI Chat

• Built-in offline AI assistant for free-form conversations • Switch between different on-device AI options mid-conversation • Real-time output, word by word as it generates

Privacy First

• Every word stays on your iPhone — no servers, no cloud, no logs • No account, no login, no subscription pressure — just open and use

Offline AI Download Manager

Built-in download manager with multiple sources (domestic mirrors prioritized for users in mainland China). Resume on interruption supported. Available offline AI options:

• Translation AI (984 MB) — runs alongside voice recognition for fluid real-time translation • Voice Recognition (1.6 GB) — multi-language voice detection across 15+ languages • Advanced Chat AI (3.5 GB) — more powerful AI chat capability • Plus Chat AI (2.5 GB) — balanced everyday conversation

Use Cases

• On a flight — interpretation works in airplane mode • In a foreign hotel — no roaming charges, no WiFi search • In meetings — discuss freely without sending audio to a cloud server • Language learning — practice anywhere, anytime • Business travel — confidential conversations stay confidential