Do+chat: Offline AI Assistant
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Teen
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About this app
Do+chat is a workbench for prompts. Write a prompt, keep every version of it, chat with it, and see exactly which prompt and which model produced each answer.
Prompts with versions
• Write a prompt freely, or fill in a simple template: role, context, task, audience, output format, tone, constraints, examples.
• Every change is saved as a new version. Compare any two versions side by side.
• Switch the system prompt in the middle of a chat and keep the conversation going.
• Start from ready-made prompts in Discover, or load your own prompt list from a URL (Plus).
AI that runs on your phone
• Download open models and run them on the device. Nothing you type leaves the phone.
• Use Gemini Nano on supported devices.
• Add any compatible model from Hugging Face yourself (Plus).
Or your own server
• Connect any OpenAI-compatible endpoint: a hosted provider with your own API key, or a local server on your own network.
• Your API keys are encrypted with the Android Keystore.
Every answer recorded
• Each reply keeps the prompt version, model, settings, token counts and timing, so you can tell what changed when an answer gets better or worse.
• Thinking models show their reasoning in a separate, collapsible block.
Private by design
• No account. Your prompts and chats are stored only on your device and in your own device backup.
Do+chat is free with a small banner ad. Plus removes the ads and lets you add your own models and sources.
Prompts with versions
• Write a prompt freely, or fill in a simple template: role, context, task, audience, output format, tone, constraints, examples.
• Every change is saved as a new version. Compare any two versions side by side.
• Switch the system prompt in the middle of a chat and keep the conversation going.
• Start from ready-made prompts in Discover, or load your own prompt list from a URL (Plus).
AI that runs on your phone
• Download open models and run them on the device. Nothing you type leaves the phone.
• Use Gemini Nano on supported devices.
• Add any compatible model from Hugging Face yourself (Plus).
Or your own server
• Connect any OpenAI-compatible endpoint: a hosted provider with your own API key, or a local server on your own network.
• Your API keys are encrypted with the Android Keystore.
Every answer recorded
• Each reply keeps the prompt version, model, settings, token counts and timing, so you can tell what changed when an answer gets better or worse.
• Thinking models show their reasoning in a separate, collapsible block.
Private by design
• No account. Your prompts and chats are stored only on your device and in your own device backup.
Do+chat is free with a small banner ad. Plus removes the ads and lets you add your own models and sources.
Chat with AI that runs offline on your phone. Ready-made assistants, no account.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
Bug fixes and stability improvements.
App support
About the developer
DO PLUS, K.K.
googleplay@doplus.jp
2-19-23, CHUO
EDOGAWA-KU, 東京都 132-0021
Japan
+81 70-4775-5098