Backgrind vs sizeless: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Backgrind and sizeless — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Backgrind
Backgrind
Always-on-top desktop overlay for macOS and Windows that runs your AI coding agent and pings you only when it needs approval or input.
Key features
- Always-On-Top Overlay: Floats your coding agent over any app, editor, browser or fullscreen game so it stays in view.
- Bring Your Own Agent: Works as a thin frontend over Claude Code, Cursor or a Backgrind-hosted model using your existing login and history.
- Attention-Only Alerts: Stays quiet while the agent works and flashes or chimes only when it needs approval or input.
- Inline Approvals: Surfaces command-run and dependency-install requests so you can approve or reject them in place.
- Customizable Window: Drag, stretch, recolor and fade the floating window to fit your workspace.
- Cross-Platform: Available for both macOS and Windows.
Best for
- Background Coding: Kick off a refactor or build and keep working elsewhere until the agent needs you.
- Supervising Multiple Agents: Keep several agent sessions visible in floating windows at once.
- Vibe Coding: Let casual builders run an agent without learning a full IDE workflow.
- Long-Running Tasks: Monitor test runs and multi-step builds without staring at a terminal.
- Approval Gating: Review and authorize potentially risky commands before they execute.
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