LiteChat

Available Models:

Gemma 4 E2B

Gemma 4 E4B

Gemma3n-E2B

Gemma3n-E4B

Phi-4-mini

Qwen-2.5-1.5B

⚠️ Custom model import is NOT supported. You can only download and use models available inside the app.

LiteChat is a fast, private, and fully offline AI chat app powered by on-device large language models (LLMs).

No servers. No data collection. No internet required.

Everything runs locally on your phone — 100% private, secure, and always available.

Whether you're writing, learning, brainstorming, coding, or chatting for fun, LiteChat gives you an instant AI assistant that works anywhere — even in airplane mode.

Why LiteChat?

LiteChat is designed for users who want the power of modern AI without sacrificing privacy or relying on cloud services. Thanks to efficient on-device LLMs, the app delivers a fast and natural chat experience while keeping your conversations fully offline.

Enjoy the benefits of AI anytime, anywhere — without subscriptions, logins, or hidden fees.

100% Private & Secure

Your messages never leave your device.

No account, no cloud, no tracking.

All processing happens locally using optimized models based on the LiteRT-LM engine.

Your data stays with you — always.

Fast On-Device Performance

LiteChat is optimized to run efficiently on modern Android devices.

Get near-instant responses, smooth interactions, and reliable performance without waiting for servers or network stability.

AI that works as fast as your phone.

Download & Manage Models Easily

Use the built-in Model Manager to:

• Download different LLMs

• Switch between models anytime

• Redownload or remove models

• See download progress, speed & status

• View what’s stored on your device

Choose the model that fits your needs — accuracy, speed, or size.

Natural Conversations

Ask anything — LiteChat responds naturally and intelligently:

• Everyday questions

• Creative writing

• Learning & studying

• Coding & tech help

• Psychology & self-help

• Recipes & travel ideas

• Storytelling & poetry

• Productivity tasks

• Brainstorming & explanations

Your personal offline AI companion.

Beautiful & Simple UI

LiteChat is built with a clean, modern interface:

• Light & dark themes

• Multiple UI languages

• Smooth onboarding

• Intuitive chat layout

• History & saved sessions

• Prompt suggestions

• File attachment support

• Voice input with TTS and STT (if available)

Everything feels fast, simple, and comfortable to use.

Multi-Language Support

The app includes translations for many UI languages, including:

🇺🇦 Ukrainian

🇺🇸 English

🇪🇸 Spanish

🇩🇪 German

🇫🇷 French

🇵🇹 Portuguese

🇷🇺 Russian

LiteChat adapts to your device automatically or lets you choose manually.

Advanced Features

• On-device model downloads

• Hugging Face token support

• Temperature control (creativity)

• System prompt customization

• Chat history search

• Offline-only operation

• Error explanations & helpful hints

• Local TTS/voice input (if available on device)

Perfect for both beginners and power users.

Powered by LiteRT-LM

LiteChat uses Google’s open-source LiteRT-LM technology, bringing on-device LLM inference to Android with high performance and low resource usage.

This allows powerful AI interactions without needing the cloud.

Modern AI — running right in your pocket.

Made for Everyday Productivity

LiteChat helps you with:

• Writing messages, essays, emails

• Generating ideas & brainstorming

• Learning complex topics

• Summarizing text

• Getting explanations

• Creating stories or poems

• Practicing languages

• Coding & debugging

• Quick knowledge lookup (offline!)

Your helpful AI assistant — always with you.

Why users love LiteChat

• Works offline anywhere

• Completely private

• Free to use

• No signup required

• Fast and lightweight

• Powerful AI models

• Simple, clean interface

• Great for everyday tasks

Start chatting offline today!

Download LiteChat and enjoy the freedom of a private, offline AI assistant that works whenever you need it.