LocalTC

Free, open-source AI air traffic control and a talking first officer for Microsoft Flight Simulator 2024 on Windows, gate to gate: push-to-talk, controllers with their own voices, checked readbacks, SIDs, STARs, vectors, approaches and holds in FAA or ICAO phraseology. Runs locally (Whisper, Piper and an optional Ollama model) so flights work offline; a free cloud-model key is optional. Phone app, live tracker and logbook with replays. Early releases (v0.5.3, Oct 2026).

Last verified Nov 1, 2026 against its official site or app listing

Category	ATC & Radio Practice
Pricing	Free and open source (AGPL-3.0); optional donations; optional own API key for a cloud model
Free tier / trial	Free and open source (AGPL-3.0)
Platforms	Windows (MSFS 2024)
Maker	LocalTC (open source)
Website	https://localtc.tech/
Last verified	Nov 1, 2026

Prices and trial terms come from the vendor's own pages on the date shown and can change. Check the vendor site before you buy.

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Free: ATC radio calls practice drill

Sign up and get our 20-call VFR radio drill (towered, flight following, CTAF), based on the AIM, to say out loud before your next lesson. Then one short email when new pilot AI tools launch. No spam, unsubscribe in one click.