Crew Chief vs iSpeed
Quick summary
Verified pricing differs — Crew Chief: Free · iSpeed: Free (donationware).
Verdict
Which one should you pick?
Choose Crew Chief when you want a free voice spotter & engineer — it 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
Choose iSpeed when you want community lap data on iRacing — it 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
iSpeed
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
iSpeed
Platforms
Crew Chief
iSpeed
Standout feature
Crew Chief
Human-like radio engineer + spotter voice calls — free, MIT-licensed open source (GitHub: mrbelowski/CrewChiefV4) with community voice packs, translations and name personalisations
iSpeed
Community datamart of thousands of uploaded laps to compare braking points, lines and gearing against faster drivers
Limitations
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
Verification
Crew Chief
iSpeed
“—” means the official site does not state it — we leave it blank instead of guessing.
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