Multi-Claude vs sizeless: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Multi-Claude and sizeless — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Multi-Claude
Multi-Claude
Run multiple Claude Desktop accounts side-by-side on one Mac, each as its own dock app with separate login and chat history.
Key features
- Separate Dock Apps: Launches each Claude account as a distinct native macOS app with its own dock icon for clear visual separation and quick access.
- Isolated Sessions and Histories: Maintains independent login sessions and chat histories per account to prevent context mixing and preserve conversation continuity.
- Concurrent Multi-Account Operation: Allows multiple Claude logins to be signed in and used simultaneously for parallel workstreams or comparisons.
- Profile-Based Account Management: Treats each account as a separate profile (app instance) that stores credentials and session data independently, simplifying account organization.
- Native macOS Integration: Runs as a native desktop application leveraging macOS behavior (dock, window management) for a seamless user experience.
- Workflow Efficiency: Reduces friction of switching accounts by enabling side-by-side conversations, improving productivity for multitasking, testing, and comparative tasks.
- Quick Onboarding: Simple setup to add additional Claude accounts and spawn their dedicated app instances without complex configuration.
- Runs multiple Claude Desktop accounts simultaneously on one Mac
- Each account is a separate profile with an independent session and login
- Each profile appears as a real macOS dock application with its own icon
- Maintains separate chat history per account/profile
- Side-by-side operation for switching contexts without signing out
- Native macOS application (no browser-based multi-login needed)
- No public API or developer documentation referenced in provided content
- Technical requirements and supported macOS versions not specified in source content
Best for
- Managing separate personal and work Claude accounts simultaneously without repeated sign-ins.
- Agencies or freelancers handling multiple client Claude sessions on one Mac while keeping histories and credentials isolated.
- Comparing responses across different Claude accounts or configurations by running them side-by-side for prompt tuning or evaluation.
- QA and development testing of Claude-based integrations by running multiple accounts to simulate multi-user scenarios.
- Collaborative sessions where multiple teammates use different Claude accounts on a shared machine without interfering with each other's history.
- Running parallel research or experimentation workflows that require separate conversation contexts for each experimental branch.
- Maintain separate work and personal Claude accounts concurrently
- Test features or flows across multiple Claude accounts without signing in/out
- Run multiple role-based accounts for parallel workflows (e.g., different project personas)
- Power-user productivity: quick context switching between isolated chat histories
sizeless
sizeless
Turns a smartphone video of an open trench into a centimetre-accurate 3D point cloud, CAD as-built plan and GIS-ready digital twin of buried utilities.
Key features
- Smartphone capture: Field crews record an open trench with a standard iPhone Pro — no specialist scanning hardware and no separate surveying appointment
- Centimetre-accurate point clouds: Reconstruction algorithms developed at ETH Zurich build a high-resolution 3D point cloud of the excavation from the video alone
- Standards-compliant CAD output: Generates as-built plans in DWG and DXF, with couplings and pipe runs identified and measurements simplified
- 3D digital twin and GIS export: Produces a model of the pipe route including building entries that drops into existing GIS systems
- Works without GPS: Captures basement sections and building entry points where GNSS-based surveying fails
- Immediate backfilling: Because capture takes minutes, trenches close right after filming instead of waiting on a survey crew
- Documentation in about 72 hours: Complete records arrive weeks earlier than conventional surveying, enabling prompt connection billing
- Third-party utility capture: Records crossing utilities and as-laid geometry as unbroken 3D evidence, replacing hand sketches
Best for
- A utility network operator documenting residential service connections without booking a surveyor for every site
- A contractor closing a trench the same day instead of leaving it open pending a survey appointment
- Capturing a building entry point in a basement where GPS-based surveying cannot get a fix
- A district heating project producing as-built DWG plans for regulatory sign-off
- Spotting a laying error in the 3D point cloud before backfilling, while the fix is still cheap
- Feeding as-built pipe geometry into a GIS system for long-term network maintenance planning