Dropstone CLI vs Opposable: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Dropstone CLI and Opposable — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
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Dropstone CLI
Blankline
Self-learning terminal coding agent with Plan and Build modes, memory, custom agents, MCP support and GitHub/GitLab automation.
Key features
- Tiered Models: Fast 1.8 for everyday edits, Pro 1.8 for multi-file changes and Heavy 1.8 for large refactors.
- Plan and Build Modes: Plan reads and suggests without changes while Build has every tool; switch with Tab.
- Persistent Memory: Corrections are remembered between sessions and private to your account.
- Project Rules: /init reads the repo and writes an AGENTS.md the team can commit.
- Granular Permissions: Allow, ask or deny per tool or command.
- Skills and Custom Agents: Define reusable SKILL.md instructions and agents in Markdown or JSON.
- GitHub and GitLab Integration: Mention it on an issue and it opens a branch and pull request or merge request.
- Server Mode and SDK: Run headless with an OpenAPI HTTP server or a typed Node SDK.
Best for
- Bug Fixing: Let the agent find a failing test, fix it and rerun the suite.
- Large Refactors: Use the Heavy tier for long-horizon, multi-file changes.
- Issue Automation: Comment on a GitHub issue to have it open a pull request.
- CI Scripting: Run the headless server from scripts and pipelines.
- Team Standardization: Commit AGENTS.md so teammates share project rules.
- Codebase Exploration: Use subagents to research a repo in parallel.
Opposable
Reval Labs
Computer use for phones: lets Claude Code, Codex or an on-device agent see, tap and type across every app on an Android phone or iPhone.
Key features
- Phone MCP Server: Claude Code, Codex, Cursor or any MCP client can open apps, read the screen, tap and type on a real phone.
- On-Device Agent: Runs on the phone itself, works offline, and keeps screen content on the device.
- Model-Free Tasks: About 40 everyday tasks like alarms, calls, texts and settings run with no model.
- Recipes: Save a task an agent did once and replay it on the phone in seconds.
- Claude and ChatGPT Connectors: Add a custom connector so chat apps can operate your Android phone.
- iPhone via Mac: A Mac app pairs as a Bluetooth keyboard and pointer to control an iPhone, in beta.
- Cloud Phones: Rent a private virtual Android phone and connect your agent over MCP.
- Payment Approvals: Payments always wait for your Approve tap.
Best for
- Banking and Payments: Have an agent complete a flow, with the two-factor code fetched from Messages and payment held for approval.
- Ride and Food Booking: Delegate booking rides or deliveries across multiple apps.
- Messaging Replies: Let an agent read and reply to messages across chat apps.
- Scheduled Phone Tasks: Run routines and webhooks while your laptop is closed.
- App Testing: Drive real apps on a real or cloud phone from a coding agent.