Comparison

Carista OBD2 vs MODI Mobile Diagnostics

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

Head to head
About

Carista OBD2

This app acts as a DIY car mechanic, allowing you to customize features, diagnose warning lights, monitor live data, and perform maintenance. Save time and money by handling common car tasks yourself.

Highlights
  • Customize car behavior and unlock hidden features
  • Diagnose and reset dashboard warning lights
  • Monitor real-time vehicle parameters
  • Perform simple DIY car maintenance procedures
  • Access advanced electronic diagnostics
Features
Read full description

Carista lets you diagnose warning lights, read and reset fault codes, monitor live vehicle data, customize your car, and perform DIY service procedures - all from your phone. Save hours and thousands of dollars in unnecessary workshop visits, and take control of your car's maintenance, diagnostics, and personalization. Trusted by 3+ million users worldwide, Carista supports 30+ car brands, offers SFD & SFD2 compatibility, and brings 10+ years of leadership in the OBD2 industry. CUSTOMIZE YOUR CAR (PRO) Unlock hidden features and personalize how your car behaves. • Gauge needle sweep at startup • Start screen logo • Virtual instrument cluster themes • Daytime running lights • Coming-home and leaving-home lights • Throttle response behavior And many more ADVANCED DIAGNOSTICS (PRO) Go beyond the Check Engine Light. Diagnose multiple electronic control modules, including ABS, airbag, SRS, Engine, Transmission, and manufacturer-specific systems. Read and clear diagnostic trouble codes before visiting a workshop. SEE YOUR CAR'S LIVE DATA (PRO) Monitor real-time vehicle parameters and see what's happening inside your car. Depending on your vehicle, live data can include: • Engine and turbo information • Launch control count • Mileage information • Airbag crash count • Service interval information • Engine RPM and other performance parameters With supported vehicles, Apple CarPlay lets you view basic OBD2 live data on your car's screen while driving. PERFORM DIY SERVICE PROCEDURES (PRO) Handle simple maintenance yourself and avoid workshop visits. Depending on your vehicle, Carista offers: • Electronic parking brake (EPB) service • Service due indicator reset • Tire pressure sensor (TPMS) registration • Diesel particulate filter (DPF) regeneration • Battery registration And other vehicle-specific service functions SUPPORTED CAR BRANDS Carista supports Acura, Audi, BMW, Buick, Cadillac, Chevrolet, Cupra, Dacia, Ford, Genesis, GMC, Holden, Honda, Hyundai, Infiniti, Jaguar, Kia, Land Rover, Lexus, Lincoln, MAN, Mazda, Mini, Nissan, Opel/Vauxhall, Pontiac, Renault, Saab, Scion, SEAT, Skoda, Toyota, Volkswagen and Volvo. Feature availability varies by vehicle, model year and hardware: https://carista.com/apps/supported-cars BASIC OBD2 FEATURES FOR MOST 2005/2008+ CARS (FREE) Compatible vehicles with an OBD port also get basic OBD2 diagnostics, live data, and emissions readiness tools. EASY TO USE: Locate the OBD2 port • Plug in the scanner • Turn on ignition • Open the app • Pair it with the scanner HARDWARE For the best experience, pair the app with the Carista EVO Scanner. Carista also works with selected compatible OBD2 scanners, including OBDLink CX, OBDLink MX Bluetooth, OBDLink LX, Kiwi3, and genuine Bluetooth ELM327 v1.4 scanners. The Carista OBD Scanner (white) is not compatible with Ford vehicles or SFD/SFD2-protected 2020+ Volkswagen Group vehicles. Check compatibility before purchasing a scanner. WHY CARISTA? • 3M+ users worldwide — Trusted by millions of drivers to understand, maintain, and personalize their cars. • 10+ years of automotive expertise — Over a decade of experience in vehicle diagnostics and customization. • Official Volkswagen Group partner — Trusted automotive technology with advanced capabilities for supported VW Group vehicles. • 300+ customizations — Hundreds of ways to personalize your car and unlock hidden features. • SFD & SFD2 support — Unlock supported SFD- and SFD2-protected features and customizations on compatible Volkswagen Group vehicles. • 30+ car brands supported — One app for a wide range of popular manufacturers. • One subscription. All Pro features. — Access every Pro feature for your vehicle without buying individual credits. • Regularly updated — New vehicles and features added frequently. Learn more: https://carista.com/ Supported vehicles: https://carista.com/apps/supported-cars Privacy Policy: https://carista.com/policies/privacy-policy

About

MODI Mobile Diagnostics

This app provides advanced diagnostic and customization options for vehicles. It allows users to read and clear trouble codes, view live data, perform module scans, and unlock coding features for various car brands. A health report feature helps identify potential issues before trips.

Highlights
  • Vehicle diagnostics
  • Read and clear diagnostic trouble codes
  • Live data display
  • Module scan
  • Coding and customization
  • Health Report
Features
Read full description

MODI is a next-generation mobile diagnostic interface, designed and developed by Abrites. Manufactured by the highest standards in the industry, it has been created with automotive enthusiasts in mind, giving you a vast variety of diagnostic and customization options. MODI allows you to tap into the full potential of your vehicle by unlocking coding functions for your car. Main functionalities: • Vehicle diagnostics • Reading and clearing diagnostic trouble codes • Live data displayed in a graph and table view • Module scan • Coding and customization options • Health Report With MODI, you can read and clear diagnostic trouble codes from your car. A “Check Engine” light popped up on your dashboard and your vehicle is now in emergency mode? Not a problem - with MODI, you can perform diagnostics review the trouble code, clear it, drive your car to the nearby mechanic, or continue your journey! You’ve just collected your car from the service shop and noticed that the service intervals are not reset. With MODI in your glove box, this is not an issue anymore - now you can reset the service intervals on your car all by yourself, quickly and easily. We are officially introducing our newest feature: Health Report. Planning a family trip? With our Health Report feature, you can scan all modules on your vehicle, review the registered trouble codes and understand the state of your car. This will point you to potential problems you may face during your upcoming trip so that you can plan a visit to your mechanic. This feature has the potential to spare you costly roadside assistance and repair bills. With MODI, you are getting much, much more. Coding Features*: BMW • Unlock the “M” logo and change other visual elements on the instrument cluster and HUD • Enable full-screen Apple Carplay • Enable/disable the engine Start-Stop system VAG • Enable needle sweep and lap time on the instrument cluster and HUD • Change the startup screen on the instrument cluster/HUD • Enable/disable side-mirror folding and opening on vehicle lock/unlock • Enable wireless Apple Carplay (if the wired function is supported) Peugeot/Citroen • Configure DRL • Enable/disable side-mirror folding and opening on vehicle lock/unlock *The coding features are available only on supported car brands and models. The MODI hardware is Bluetooth-enabled and works with the designated MODI app, available in the Apple Store. You need less than 3 minutes to install your MODI on your car and start using it. How It Works: 1. Connect MODI to your car using the OBD2 port. 2. Download the MODI app on your phone from the App Store. 3. Open the MODI app, select your car brand and access the features and configurations of your car. No in-app purchases or subscriptions are required while you are using MODI. What does this mean for you? You will no longer have to worry about recurring charges, and you will have access to all features of the app without having to pay extra. This will make it easier for you to use MODI and get the most out of it. Have you ever wanted to unlock the full potential of your car? With MODI, you can do just that!

Screenshots

Carista OBD24 screens
MODI Mobile Diagnostics4 screens

Verdict

The call

The clearest difference is in-app purchases: MODI Mobile Diagnostics at none against Carista OBD2's 14. MODI Mobile Diagnostics also leads on ads (none vs shown). Carista OBD2's advantage is review sentiment (34% vs 0%) and chart position (#166 vs unranked). On price, update cadence, device support and iOS requirement 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. Carista OBD2 sells 6 in-app purchases, starting at $19.99 per month. MODI Mobile Diagnostics asks for nothing beyond the download.

UpkeepUpdate frequency

Carista OBD2 ships an update every 3 weeks, MODI Mobile Diagnostics monthly. The most recent releases landed on October 26, 2026 and October 4, 2026 respectively.

Scorecard5 real differences · 6 level
Carista OBD2 versus MODI Mobile Diagnostics: the parameters behind the verdict, then further details
ParameterCarista OBD2MODI Mobile Diagnostics
PriceFreeFree
Rating4.6 (4.2K ratings) — better—
Positive reviews34.2% of reviews — better0.0% of reviews
Number of ratings4.2K — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#166 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size142 MB66 MB
Age rating17+4+
DeveloperPrizmosMODI Abrites Ltd.

Customer experience

Carista OBD2

All ratings4,223 ratings
Positive89.5%
Neutral2.2%
Negative8.3%
Written reviews816 reviews
Positive34.2%
Neutral9.6%
Negative56.3%

MODI Mobile Diagnostics

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Carista OBD2

Reported bugs

5 issues
  • App crashes and freezes
  • Subscription issues and billing problems
  • Incompatibility with certain OBD2 adapters
  • Customization features not working as expected
  • Inaccurate fault code detection

Requested features

5 requests
  • Support for more vehicle makes and models
  • Offline diagnostics and customization
  • Ability to save customization settings
  • More detailed error code information
  • Improved user interface and navigation

MODI Mobile Diagnostics

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Carista OBD2

Subscriptions5
  • Basic$19.991 Month
  • Pro$19.991 Month
  • 1 month Pro4 variants$19.991 Month
Show 2 more
  • 3 month Pro2 variants$29.993 Months
  • Pro5 variants$59.991 Year
One-time1
  • One-Time Diagnostic & Reset$9.99
None

MODI Mobile Diagnostics

No in-app purchases

Questions

Is Carista OBD2 free?
Carista OBD2 is free to download, with in-app purchases available.
Is MODI Mobile Diagnostics free?
MODI Mobile Diagnostics is free to download, with no in-app purchases.
Do Carista OBD2 or MODI Mobile Diagnostics have ads?
Carista OBD2 shows ads; MODI Mobile Diagnostics does not.
Which is updated more often, Carista OBD2 or MODI Mobile Diagnostics?
Carista OBD2 ships an update every 3 weeks, and MODI Mobile Diagnostics monthly. Most recently, Carista OBD2 was updated on October 26, 2026 and MODI Mobile Diagnostics on October 4, 2026.

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