Comparison

CAR OBD 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

CAR OBD

This utility app helps users manage car keys by facilitating the matching of existing keys and the addition of new ones. It supports both single key additions and batch processing for multiple keys.

Highlights
  • Match car keys
  • Add single car key
  • Batch add multiple keys
  • Supports iPhone and iPad
Features
Read full description

An App for matching car keys, adding one key or batchadding multiple keys

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

CAR OBD4 screens
OBD Quest4 screens

Verdict

The call

The clearest difference is ads: CAR OBD at none against OBD Quest's shown. OBD Quest's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, rating, ratings volume and in-app purchases 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. CAR OBD sells 5 one-off in-app purchases and OBD Quest sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CAR OBD against 5.0 for OBD Quest. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

CAR OBD ships an update every 6 weeks, OBD Quest every 3 weeks. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 8 level
CAR OBD versus OBD Quest: the parameters behind the verdict, then further details
ParameterCAR OBDOBD Quest
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13 — better14.0.0
Further details — not scored
Size15 MB54 MB
Age rating4+4+
DeveloperDongguan Shendu Research Intelligent Technology Co., Ltd.Shop Booster Ltd

Customer experience

CAR OBD

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

OBD Quest

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

CAR OBD

One-time5
  • OBD number recharge One$3.00
  • OBD number recharge Two$6.00
  • OBD number recharge three$9.00
Show 2 more
  • OBD number recharge four$12.00
  • OBD number recharge five$15.00
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 CAR OBD free?
CAR OBD is free to download, with in-app purchases available.
Is OBD Quest free?
OBD Quest is free to download, with in-app purchases available.
Which has better reviews, CAR OBD or OBD Quest?
CAR OBD and OBD Quest are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do CAR OBD or OBD Quest have ads?
OBD Quest shows ads; CAR OBD does not.
Which is updated more often, CAR OBD or OBD Quest?
CAR OBD ships an update every 6 weeks, and OBD Quest every 3 weeks. Most recently, CAR OBD was updated on October 20, 2026 and OBD Quest on October 19, 2026.

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