Comparison

aRacerOBD vs OBD Quest

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

aRacerOBD

Features
Read full description

The functions include: 1. Engine data monitoring from ECU in real time. 2. Shows and resets engine DTC codes in the ECU. 3. Component test function for inspecting the component activation. (Injector, Fuel pump, ignition coil, etc.) 4. Shows the ECU information. (Hardware version, software version, etc.)

About

OBD Quest

Decode and understand car diagnostic trouble codes with this comprehensive interpreter. It provides detailed insights into fault codes, potential causes, and repair recommendations, complementing your existing OBD2 scanning tools. Access a vast database of codes across multiple languages and car brands to diagnose issues with confidence.

Highlights
  • Interpretation of over 85,000 OBD2 codes
  • Multilingual support (English, French, Italian, German, Portuguese, Spanish)
  • Extensive coverage across auto makes and brands
  • Detailed insights for each code search
  • Unlimited code searches
  • AI-powered code interpretation
Features
Read full description

Unlock the ultimate power of OBD2 code interpretation with OBDQuest, your comprehensive solution for decoding, understanding and diagnosing car issues. Whether you're looking up a specific DTC fault code definition, or utilizing an OBD2 car scanner, OBDQuest will be your work companion you ever needed to provide unmatched insights into each individual fault code. Don’t get confused, this simple yet innovative application exploiting the power of AI along with comprehensive OBDii SAE/ISO databases is complementing your daily scanning tools below: obd2 scanner, torque obd2, bluedriver obd2 scan tool, car scanner, car scanner elm obd2, carista, obd fusion, forscan, obdlink, obd11, obdeleven, bimmerlink, veepeak, dash command, elm obd2, carly obd2 car scanner, JScan, repair solutions 2, torque pro, bootmod3, FIXD OBD2 Scanner, autocodes, DtcFix, DTCs Fix, obd jscan, OBDocker, torque lite, ScanMaster, car scanner, Dr. Prius, Carly, HobDrive etc. If you use any of those tools already, keep on using them along with OBDQuest to get more insights of the fault code and ease your car diagnostics. Key Features: 1. Interpretation of over 85,000 OBD2 codes 2. Multilingual support in English, French, Italian, German, Portuguese, and Spanish 3. Extensive coverage across various auto makes and brands 4. Detailed insights for each code search, covering potential symptoms, likely causes, primary components affected, recommended fixes, estimated repair costs, and risk assessment. 5. Unlimited code searches, empowering you to tackle any issue with confidence. OBDQuest isn't just another OBD2 app; it's your trusted companion for navigating the complexities of car diagnostics. Don't let trouble codes hold you back; harness the power of OBDQuest and drive with confidence. EULA - End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy : https://obdquest.com/privacy-policy/

Screenshots

aRacerOBD4 screens
OBD Quest4 screens

Verdict

The call

The clearest difference is in-app purchases: aRacerOBD at none against OBD Quest's 3. aRacerOBD also leads on ads (none vs shown) and iOS requirement (10.0 vs 14.0.0). OBD Quest's advantage is update cadence (every 3 weeks vs every 8 months). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OBD Quest sells 3 in-app purchases, starting at $9.99 per month. aRacerOBD asks for nothing beyond the download.

UpkeepUpdate frequency

aRacerOBD ships an update every 8 months, OBD Quest every 3 weeks. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 5 level
aRacerOBD versus OBD Quest: the parameters behind the verdict, then further details
ParameteraRacerOBDOBD Quest
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better14.0.0
Further details — not scored
Size17 MB54 MB
Age rating4+4+
DeveloperARACER SPEEDTEK INC.Shop Booster Ltd

In-app purchases

None

aRacerOBD

No in-app purchases

3 purchases

OBD Quest

Subscriptions2
  • Monthly Pro Plan$9.991 Month
  • Yearly Pro Plan$99.991 Year
One-time1
  • Pro Plan for 3 days only$0.99

Questions

Is aRacerOBD free?
aRacerOBD is free to download, with no in-app purchases.
Is OBD Quest free?
OBD Quest is free to download, with in-app purchases available.
Do aRacerOBD or OBD Quest have ads?
OBD Quest shows ads; aRacerOBD does not.
Which is updated more often, aRacerOBD or OBD Quest?
aRacerOBD ships an update every 8 months, and OBD Quest every 3 weeks. Most recently, aRacerOBD was updated on October 10, 2026 and OBD Quest on October 2, 2026.

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