Comparison

OBD2UDS Car Scanner & OBD2 vs Auto Diag Solution

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

Head to head
About

OBD2UDS Car Scanner & OBD2

Features
Read full description

OBD2UDS combines OBD2 fault codes, live data, vehicle-specific parameters and UDS diagnostics for car checks, DIY maintenance, used car inspections and before-and-after repair comparisons. Connect a compatible ELM327 Bluetooth OBD2 adapter to read supported vehicle data, build your dashboard and save records and charts. EXTENDED PARAMETERS BY VEHICLE Browse reference parameters by make and model, add them to your list and try a read. Set a capture duration for supported parameters, then review trends and statistics. - Browse parameters by make and model - Try reading one or multiple parameters - Add custom parameters or import compatible CSV definitions - Review capture charts, minimum, maximum and average values - Export captured data as CSV for comparison Reference entries are not proof of testing on every listed vehicle. Availability depends on model year, configuration, ECU, protocol and adapter. FAULT CODES AND VEHICLE CHECKS Read and clear supported engine fault codes. View freeze frames and vehicle or ECU information to help investigate a check engine light. I/M readiness, Mode 06 test data and oxygen sensor waveforms provide context for emissions preparation and troubleshooting. LIVE DATA AND YOUR DASHBOARD Monitor supported sensors such as RPM, coolant temperature, speed, engine load and fuel trims. Configure your dashboard and parameters before connecting; vehicle support is checked after connection. ADVANCED UDS DIAGNOSTICS Read diagnostic information from supported ECU modules where a compatible configuration is available. Coverage may include engine, transmission, ABS or SRS and varies by vehicle. Save reports or copy vehicle and fault-code details for further analysis. RECORDS, FUEL DATA AND CSV Record multiple PID sensors, review charts and history, and save fuel records and diagnostic reports for repair comparisons. Export PID and fuel records as CSV. Some interrupted tests retain partial results. Additional tools include acceleration tests, battery voltage and cranking-drop checks, fuel and energy monitoring, and cabin noise monitoring. Available data depends on your device and vehicle. BEFORE YOU CONNECT - A Bluetooth OBD2 adapter compatible with your phone and vehicle is required separately. - Standard OBD2, extended parameters and UDS have different coverage. Not every vehicle or module is supported. - Browse the reference catalog; adding, editing, importing, trial reads and capture require sign-in and applicable Premium access. Recording and history require sign-in; some professional tools require Premium. - Clearing codes does not repair faults. Results support troubleshooting. Read faults and track changes with OBD2UDS for vehicle checks backed by data. SUBSCRIPTIONS If you choose an auto-renewing subscription, payment is charged to your Apple account at confirmation. It renews unless auto-renewal is turned off at least 24 hours before the period ends. Manage or cancel in your Apple account subscription settings. Prices, periods and access are shown on the purchase screen. Privacy policy: https://www.obd2uds.com/privacy.html Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Auto Diag Solution

Features
Read full description

Auto Diag Solution est une application de diagnostic automobile permettant d'identifier les pannes, consulter les codes défaut, suivre l'entretien des véhicules, accéder à un garage virtuel et bénéficier d'un assistant IA spécialisé. Conditions d'utilisation (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Politique de confidentialité : https://autodiagsolution.com/privacy

Screenshots

OBD2UDS Car Scanner & OBD24 screens
Auto Diag Solution4 screens

Verdict

The call

The clearest difference is update cadence: Auto Diag Solution at every 5 days against OBD2UDS Car Scanner & OBD2's fortnightly. On price, ads, in-app purchases 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. OBD2UDS Car Scanner & OBD2 sells 2 in-app purchases, starting at $1.99 per month and Auto Diag Solution sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OBD2UDS Car Scanner & OBD2 ships an update fortnightly, Auto Diag Solution every 5 days. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 5 level
OBD2UDS Car Scanner & OBD2 versus Auto Diag Solution: the parameters behind the verdict, then further details
ParameterOBD2UDS Car Scanner & OBD2Auto Diag Solution
PriceFreeFree
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size66 MB51 MB
Age rating4+4+
DeveloperRich Pearl Limited CorporationLopes Brice

In-app purchases

2 purchases

OBD2UDS Car Scanner & OBD2

Subscriptions2
  • Premium Monthly3 Days trial$1.991 Month
  • Premium Yearly3 Days trial$9.991 Year
2 purchases

Auto Diag Solution

Subscriptions2
  • Auto Diag Pro Mensuel$6.991 Month
  • Auto Diag Pro Annuel$49.991 Year

Questions

Is OBD2UDS Car Scanner & OBD2 free?
OBD2UDS Car Scanner & OBD2 is free to download, with in-app purchases available.
Is Auto Diag Solution free?
Auto Diag Solution is free to download, with in-app purchases available.
Do OBD2UDS Car Scanner & OBD2 or Auto Diag Solution have ads?
Neither OBD2UDS Car Scanner & OBD2 nor Auto Diag Solution shows ads.
Which is updated more often, OBD2UDS Car Scanner & OBD2 or Auto Diag Solution?
OBD2UDS Car Scanner & OBD2 ships an update fortnightly, and Auto Diag Solution every 5 days. Most recently, OBD2UDS Car Scanner & OBD2 was updated on October 19, 2026 and Auto Diag Solution on October 14, 2026.

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