Headroom vs TermRover

It also checks your driver for the subgroup bug that makes some in-browser LLMs produce garbage.

TermRover is a native SSH + Mosh terminal optimized for working with tmux on iPhone and Android. Browser-style tabs, one-tap prefix actions, and scrolling all just work.

About Headroom

It also checks your driver for the subgroup bug that makes some in-browser LLMs produce garbage. One outbound request: ~0.4 MB of public model metadata to derive bytes per token, no run data attached. Projections are measured read bandwidth ÷ bytes touched per token, at empty context; derived manifests make bytes-per-token exact, estimates fall back to an honest band. Real engines land below the ceiling; the gap is engine overhead (see methodology). Runs the transformers.js WebGPU path on the exact model your ceiling is quoted for ( onnx-community/gemma-4-E2B-it-ONNX.

About TermRover

TermRover is a native SSH + Mosh terminal optimized for working with tmux on iPhone and Android. Browser-style tabs, one-tap prefix actions, and scrolling all just work. The tmux prefix, usually Ctrl-b, is awkward on a touchscreen. Scrolling is worse: it usually requires mouse mode and changes to .tmux.conf, with no clear indication whether it is enabled., tapping the terminal should open the keyboard, and sending a screenshot to a coding agent. It immediately made sense for a phone: SSH can drop as you move between networks, while Mosh keeps the terminal working.