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Your proposals define your income. Fix grammar mistakes, rewrite pitches, and save proposal templates inside Upwork, Fiverr, Gmail, and WhatsApp.
Synapse Keyboard is an Android keyboard that helps freelancers create and refine proposals, client updates, and follow-up messages with on-demand AI prompts.
Drafting proposals takes time. With Synapse Keyboard, save your winning pitches as custom AI prompts — written your way, with your experience and terms in the instruction. When you run one, include the client's project details in your draft and the AI shapes the proposal around them. Write the prompt once, reuse it in every client chat.
Start with the details you already have: the client's request, your relevant experience, the delivery window, and one useful next step. Draft those notes naturally in the same app where the conversation is happening. Then select the draft and run a saved prompt such as “Turn this into a concise, friendly proposal. Keep every specific promise and ask one clear question.” The result is a starting point, not an automatic submission: check names, scope, pricing, dates, and tone before sending.
For repeat work, keep the AI instruction general and put changing facts in the selected draft. A short prompt for a status update can ask for a clear summary, completed work, the next milestone, and any blocker. A follow-up prompt can keep the message courteous without inventing urgency. Text shortcuts are useful for stable details such as your portfolio link or availability; they run on-device and do not use credits. This split keeps reusable information fast while leaving each client message specific and reviewable.
Pick a saved prompt from the keyboard panel.
Review the AI's draft, then send — no app switching.
Synapse works inside Chrome, Gmail, Upwork app, Fiverr chat, and Slack. Pay only when you use AI — starting at $5. No subscriptions, no monthly fees.
Explore more → All Features · Grammar Checker · Back to Home
You save your winning pitches, client updates, and follow-ups as custom AI prompts. In any app — Upwork, Fiverr, Gmail, WhatsApp — you select your draft, tap the prompt, and the AI shapes it around the client's details. Write the prompt once, reuse it in every client chat.
No. Synapse drafts from your own notes: you include the client's request, your relevant experience, and the delivery window, and the AI shapes a proposal around those facts. It's a starting point you review — names, scope, pricing, dates, and tone stay your responsibility.
Yes. Synapse is an Android system keyboard, so it works in the Upwork app, Fiverr chat, Gmail, Chrome, Slack, and every other Android app where you type.
No subscription. The keyboard is free with 20,000 credits on signup; AI actions use credits and you top up pay-as-you-go starting at $5. You only pay when you actually use AI.
Yes — save a 'Translate to [language]' prompt and run it on your draft. The AI translates inside the chat; quality varies by language pair, so test your prompt first.