Spark

Spark is a local-first companion for creators with jumping ideas.

Speak or type a rough thought. Chat with AI to shape it. Organize the conversation, then generate an article in the style you need—without forcing your ideas into a rigid template.

WHAT YOU CAN DO
• Capture sparks with text or hold-to-talk voice input
• Chat with free AI models using your own API keys (Groq, Gemini, OpenRouter)
• Attach photos (camera or gallery) so AI can use what's in the image
• Organize a messy chat into clear notes
• Generate articles in free styles, plus optional style packs
• Optional text-to-speech for AI replies
• Everything stays on your device—no Spark account required

BUILT FOR CREATORS
Made for people who think in fragments: short-video scripts, Xiaohongshu-style notes, long-form posts, local lifestyle content, and more. Free basic styles are included; optional one-time style packs unlock extra tones when you need them.

YOUR KEYS, YOUR CONTROL
Spark does not charge for AI usage. You bring free (or paid) API keys from providers you choose. Keys and chat history are stored on your phone. You can export and import keys from Settings.

PRIVACY-MINDED
No Spark login. No Spark cloud backend for your chats. Content you send to AI goes only to the providers whose keys you add—under their terms. Uninstalling the app removes local data (subject to your device).

OPTIONAL PURCHASES
Style packs are one-time unlocks via Google Play. Core chat, organize, and free article styles work without buying anything.

Open Spark, drop a messy idea, and turn it into something you can publish.