Cosyra

Product Introduction

1. Definition: Cosyra is a standalone mobile coding platform and cloud-hosted Ubuntu terminal designed for iOS and Android devices. Categorized within mobile development environments and cloud-hosted developer tooling, it enables software engineers to execute command-line AI coding agents—such as Claude Code and Codex CLI—directly from their smartphones without needing to maintain an independent Virtual Private Server (VPS).
2. Core Value Proposition: Cosyra eliminates the friction of mobile software development by providing a managed cloud Ubuntu terminal accessible via an iPhone or Android app. By removing the need to manually configure SSH keys, manage Linux distros, or provision separate cloud infrastructure, the platform allows developers to build, review code diffs, run AI agents, and manage workspaces from anywhere while retaining persistent storage and full isolation.

Main Features

1. Managed Cloud Ubuntu Terminals: Every Cosyra account provisions a dedicated hardware-virtualized virtual machine running Ubuntu, rather than a shared-kernel container. This environment comes with 30 GB of persistent storage that survives container or session restarts and is deployed across multiple availability zones. The infrastructure handles TLS orchestration, authentication, security assignments, and port management automatically.
2. Native Mobile Workspace & File Viewer: The mobile applications for iPhone and Android feature a native file viewer to browse workspaces, a diff viewer to read file-by-file changes made by agents, and multi-service integration capabilities. Users can attach screenshots, photos, and files directly into their active terminal sessions and connect external developer services like Linear, AWS, Google Cloud, Vercel, and Netlify inside their workspace.
3. Claude Connector & Session Handover: Cosyra supports seamless session portability via the Claude Connector. Developers can initiate a workflow in claude.ai, Claude Code, or Claude Desktop, and use a quick prompt to hand over the conversation, code blocks, and file paths to their Cosyra workspace. The system generates a QR code, link, and short code that wakes the mobile workspace with the full chat history loaded instantly into the terminal.

Problems Solved

1. Pain Point: Managing remote infrastructure on mobile devices has historically required cumbersome workflows, such as configuring Termux, maintaining SSH clients, setting up Tailscale tunnels, or manually provisioning and securing expensive cloud VPS instances just to run terminal-based AI coding tools.
2. Target Audience: Full-stack software engineers, mobile app developers, DevOps professionals, and AI-native builders who need constant, on-the-go access to their development environments and AI agents (like Claude Code or Codex CLI) outside of traditional desktop setups.
3. Use Cases: Debugging production code or reviewing pull requests while traveling; continuing complex AI coding sessions seamlessly from a desktop to an iPhone or Android device via QR code handover; managing cloud services and deploying updates via CLI tools without carrying a laptop.

Unique Advantages

1. Strengths & Limitations (Pros & Cons):
   • Pros: Completely managed cloud environment requiring zero VPS configuration; hardware-virtualized isolated virtual machines per user; native mobile UI optimized for diff reading and file browsing; built-in support for multiple AI coding agents and custom API keys (Anthropic, OpenAI, OpenRouter); seamless multi-device session handover.
   • Cons: Monthly subscription cost ($30/mo for an 8 GB RAM tier) compared to free or lower-cost DIY SSH setups; requires an active internet connection to maintain sync with the cloud virtual machine; dependent on third-party mobile app stores (App Store and Google Play).
2. Key Alternatives & Differentiation:
   • Replit Mobile: Operates on credit-based plans with mobile-accessible coding environments, but Cosyra provides dedicated Ubuntu VMs with root-level terminal access tailored specifically for advanced command-line AI agents like Claude Code.
   • Termius + Tailscale + Custom VPS: Requires the user to manually provision, secure, and patch their own server infrastructure, whereas Cosyra automates TLS orchestration, key vault management, and container isolation out of the box.
   • Claude Remote Control: Restricted primarily to the official Claude app ecosystem, whereas Cosyra functions as a broader mobile development platform capable of running any AI agent, CLI tool, or custom service stack.

Frequently Asked Questions (FAQ)

1. How do I run Claude Code on my iPhone or Android using Cosyra? You can install the Cosyra mobile app from the App Store or Google Play, which instantly connects you to your managed cloud Ubuntu terminal. From there, you can install and run Claude Code, or use the Claude Connector to hand over an active desktop session to your phone by scanning a QR code.
2. Do I need to manage my own VPS or configure SSH keys? No. Cosyra provisions a fully managed, hardware-virtualized virtual machine with 30 GB of persistent storage, handling all infrastructure provisioning, TLS encryption, port management, and security isolation automatically.
3. Where are my API keys and repository data stored? Your repository data is stored on your dedicated VM with encryption at rest and in transit. API keys are never stored in Cosyra's primary database; instead, they are held securely in a dedicated managed key vault.
4. What is the pricing for Cosyra? Cosyra is priced at $30 per month for an 8 GB RAM cloud Ubuntu workspace configuration, providing persistent storage across multiple availability zones and full mobile access.