iSpeed vs RS Dash ASR
Quick summary
Verified pricing differs — iSpeed: Free (donationware) · RS Dash ASR: Free + in-app subs.
Verdict
Which one should you pick?
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
Choose RS Dash ASR when you want lap analysis on a tablet — it has a verified free tier.
Worth knowing: Advanced Analysis requires a full-HD-or-better tablet/desktop screen and is not available for Forza Horizon/FM7/Gran Turismo due to limited telemetry, and AC/ACC/Automobilista 2/iRacing need the Windows PC version installed on the game PC
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
iSpeed
RS Dash ASR
Pricing
iSpeed
Free (donationware)
- Free (donationware)
- $15+ donation removes prompts and grants license key + priority support
RS Dash ASR
Free + in-app subs
- Free base app
- In-app subscriptions for Advanced Analysis and custom dashboard designer
Free access
iSpeed
RS Dash ASR
Platforms
iSpeed
RS Dash ASR
Standout feature
iSpeed
Community datamart of thousands of uploaded laps to compare braking points, lines and gearing against faster drivers
RS Dash ASR
Advanced Analysis mode comparing throttle/brake, steering, gear, RPM, speed and g-forces across laps on a tablet with track-map overlay
Limitations
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
RS Dash ASR
Advanced Analysis requires a full-HD-or-better tablet/desktop screen and is not available for Forza Horizon/FM7/Gran Turismo due to limited telemetry, and AC/ACC/Automobilista 2/iRacing need the Windows PC version installed on the game PC
Verification
iSpeed
RS Dash ASR
“—” means the official site does not state it — we leave it blank instead of guessing.
Straight answers
Common questions
Do iSpeed or RS Dash ASR have a free tier?
iSpeed does, and RS Dash ASR 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 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.
How much does RS Dash ASR cost?
RS Dash ASR has a free tier, and its paid pricing starts at Free + in-app subs as listed on its own pricing page. Tiers change — the card above shows every tier we verified, with the date we checked.
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 does RS Dash ASR support?
RS Dash ASR's own site lists iOS, Android, Windows, games: AC, ACC, Automobilista 2, F1 2020-25, Forza, Gran Turismo, iRacing, Le Mans Ultimate, Project CARS 2, RaceRoom, rFactor 2. 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 iSpeed and RS Dash ASR?
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. RS Dash ASR — Advanced Analysis requires a full-HD-or-better tablet/desktop screen and is not available for Forza Horizon/FM7/Gran Turismo due to limited telemetry, and AC/ACC/Automobilista 2/iRacing need the Windows PC version installed on the game PC. These are the limitations each product's own materials made plain, not a verdict on quality.
Is iSpeed or RS Dash ASR 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.
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