sizeless vs tterm: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of sizeless and tterm — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
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
t
tterm
Tanay Gondil
Free macOS workspace that unites a terminal, a real Chromium browser, and Claude Code in one hot-reloadable, self-building window.
Key features
- Self-Building Workspace: ⌘K invokes Claude Code on tterm's own source and hot-reloads the running app so you can extend the tool from inside itself.
- Row-Per-Project Layout: Every project gets its own row containing an explorer, a Claude Code session, and a file viewer, so multiple projects stack side by side.
- Embedded Real Browser: ⌘B opens a Chromium tab inside tterm that inherits your Chrome cookies, bookmarks, and history — favicons and all.
- Diff-Only Review: ⌘G opens a hunk-level diff reviewer for staging and committing changes; there's no editor by design, so you review instead of retype.
- Command-Palette Shortcuts: ⌘K palette, ⌘O projects, ⌘P quick open, ⌘⇧F search, ⌘F find, ⌘⇧M for CLAUDE.md, and more make navigation keyboard-first.
- Terminal-Respecting Key Handling: Only ⌘-chords are intercepted by tterm; every ⌃-key passes through to the pty untouched, so terminal apps keep working.
- Privacy by Default: No account, no telemetry, and no network calls home — the app is a single ad-hoc-signed hobby build.
Best for
- AI-Paired Coding: Keep Claude Code, your terminal, and docs in one window while pairing with an LLM on a project.
- Multi-Project Juggling: Stack several concurrent projects as rows so you can jump between them without alt-tabbing.
- Doc-Grounded Development: Use the embedded browser to keep API docs open next to your terminal and diff without leaving the app.
- Focused Diff Review: Review and stage AI-generated changes hunk by hunk before committing, rather than editing in place.
- Hobbyist macOS Tinkering: Extend the tool itself from inside via Claude Code, treating tterm as a live playground.