Crew Chief vs iSpeed

Crew Chief logo

Crew Chief

Best for a free voice spotter & engineer

Visit site
iSpeed logo

iSpeed

Best for community lap data on iRacing

Visit site

Quick summary

Verified pricing differs — Crew Chief: Free · iSpeed: Free (donationware).

Verdict

Which one should you pick?

  • Crew Chief logo

    Choose Crew Chief when you want a free voice spotter & engineerit has a verified free tier.

    Worth knowing: Distribution and docs live on a vBulletin forum behind Cloudflare bot protection, and the Android companion app is marked EOL on the official forum

  • iSpeed logo

    Choose iSpeed when you want community lap data on iRacingit has a verified free tier.

    Worth knowing: iRacing-only and visibly dated — the official site still lists compatibility as Windows XP through Windows 8, and unlicensed copies show periodic donation prompts

No universal winner — both entries are human-verified (dates in the Verification row below); weigh the limitations against your own setup.

Field by field

The verified fields

What it is

Crew Chief

Free, open-source (MIT) voice race engineer and spotter app for Windows with per-game support forums, voice packs and name personalisations.

iSpeed

Veteran iRacing HUD and lap analyzer with voice split/lap announcements, a shared 'datamart' of thousands of lap files, and mobile companion displays.

Pricing

Crew Chief

Free

  • Free download (CrewChiefV4.msi) — donations accepted via the site's donate link

iSpeed

Free (donationware)

  • Free (donationware)
  • $15+ donation removes prompts and grants license key + priority support

Free access

Crew Chief

Yes

iSpeed

Yes

Platforms

Crew Chief

iRacingAssetto CorsaAssetto Corsa CompetizioneRaceRoomrFactorrFactor 2GTR2AutomobilistaProject Cars 1 & 2F1 2018/2019Richard Burns RallyWindows

iSpeed

iRacingWindowsweb companion on iPad/iPhone/Android

Standout feature

Crew Chief

Standout

Human-like radio engineer + spotter voice calls — free, MIT-licensed open source (GitHub: mrbelowski/CrewChiefV4) with community voice packs, translations and name personalisations

iSpeed

Standout

Community datamart of thousands of uploaded laps to compare braking points, lines and gearing against faster drivers

Limitations

Crew Chief

Limitation

Distribution and docs live on a vBulletin forum behind Cloudflare bot protection, and the Android companion app is marked EOL on the official forum

iSpeed

Limitation

iRacing-only and visibly dated — the official site still lists compatibility as Windows XP through Windows 8, and unlicensed copies show periodic donation prompts

Verification

Crew Chief

Human-verified · 2026-08-17

iSpeed

Human-verified · 2026-09-06

” means the official site does not state it — we leave it blank instead of guessing.

Straight answers

Common questions

Do Crew Chief or iSpeed have a free tier?

Crew Chief does, and iSpeed does. A free tier can mean the whole product or a heavily capped version, so check the pricing detail on each card rather than the yes or no alone.

How much does Crew Chief cost?

Crew Chief has a free tier, and its paid pricing starts at Free as listed on its own pricing page. Tiers change — the card above shows every tier we verified, with the date we checked.

How much does iSpeed cost?

iSpeed has a free tier, and its paid pricing starts at Free (donationware) as listed on its own pricing page. Tiers change — the card above shows every tier we verified, with the date we checked.

What does Crew Chief support?

Crew Chief's own site lists iRacing, Assetto Corsa, Assetto Corsa Competizione, RaceRoom, rFactor, rFactor 2, GTR2, Automobilista, Project Cars 1 & 2, F1 2018/2019, Richard Burns Rally, Windows. We only record platforms a site names explicitly — a generic "100+ games" claim is not counted as support for any particular title.

What does iSpeed support?

iSpeed's own site lists iRacing, Windows, web companion on iPad/iPhone/Android. We only record platforms a site names explicitly — a generic "100+ games" claim is not counted as support for any particular title.

What are the drawbacks of Crew Chief and iSpeed?

Crew Chief — Distribution and docs live on a vBulletin forum behind Cloudflare bot protection, and the Android companion app is marked EOL on the official forum. iSpeed — iRacing-only and visibly dated — the official site still lists compatibility as Windows XP through Windows 8, and unlicensed copies show periodic donation prompts. These are the limitations each product's own materials made plain, not a verdict on quality.

Is Crew Chief or iSpeed better?

Neither is better in the abstract, and this page does not name a winner. They differ on the verified fields above — price, free tier, platform support and stated limitations — and which of those matters is a question about your setup, not about the products.