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Cotypist
Local AI autocomplete for every app on your Mac.
What it does
Displays smart inline ghost-text suggestions in real time across nearly every Mac text field. Allows users to accept words or phrases instantly by pressing the Tab key. Operates 100% locally on Apple Silicon hardware without sending typing data to external servers. Learns your personal writing style and vocabulary preferences to match your authentic voice.
Why it works
Executes language models entirely on-device to guarantee total privacy and eliminate cloud API latency. Integrates system-wide across macOS applications rather than locking users into a single web editor. Employs a freemium pricing model with a free tier and a 30-day Pro trial to drive adoption. Provides subtle inline completions that match natural typing velocity with minimal workflow friction.
Category: AI & Automation
Team Size: 1
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As of 2026
AI & Automation
Revenue: 0-$100k ARR
Local AI autocomplete for every app on your Mac.
Overview
Cotypist is a smart AI autocomplete application that runs locally on macOS to assist your writing across mail, messaging, and document tools. It provides real-time inline ghost-text suggestions that you can accept instantly with the Tab key. Because inference executes entirely on-device, it maintains strict data privacy with zero cloud processing or API calls. It adapts to your individual style over time to ensure your written text stays true to your personal voice.
HQ: Germany
Funding status: Bootstrapped
Revenue source: Subscriptions
Customer type: B2B2C
Pricing: Freemium
Tech stack: Swift, SwiftUI, Local LLMs, Apple Silicon APIs
Platform: macOS
Integrations: macOS, Mail, Slack, Notes, VS Code, Notion
Founder story
Cotypist was created by developer Daniel Gräfe. Frustrated by having to copy text into separate developer environments just to use smart code-completion tools, he built a universal, system-wide autocomplete utility designed to bring high-speed local AI writing assistance to every text box on macOS.
What it does
- Displays smart inline ghost-text suggestions in real time across nearly every Mac text field
- Allows users to accept words or phrases instantly by pressing the Tab key
- Operates 100% locally on Apple Silicon hardware without sending typing data to external servers
- Learns your personal writing style and vocabulary preferences to match your authentic voice.
Who it's for
- Software Developers
- Writers & Bloggers
- Founders & Executives
- Customer Support Teams
Why it works
- Executes language models entirely on-device to guarantee total privacy and eliminate cloud API latency
- Integrates system-wide across macOS applications rather than locking users into a single web editor
- Employs a freemium pricing model with a free tier and a 30-day Pro trial to drive adoption
- Provides subtle inline completions that match natural typing velocity with minimal workflow friction.
Growth strategies
- Product Hunt Featured Launches
- Word- of-Mouth in Mac Power User Communities
- Direct Developer Advocacy on Social Media
- Freemium Trial- Led Conversion
Alternatives
Comparison overview
- Cotypist delivers system-wide, on-device AI autocomplete across all native macOS text inputs using local models.
- Traditional writing assistants typically operate as restricted cloud-based browser extensions or isolated desktop text editors.