Comparison

AutoDoctor vs 2FA.Authenticator

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

Head to head
About

AutoDoctor

Transform your smartphone into a powerful car diagnostic tool. Connect to your OBD2 scanner to read fault codes, clear warning lights, and monitor real-time engine data. Ideal for car enthusiasts and those looking to save on repair costs.

Highlights
  • Connect via Bluetooth/Wi-Fi OBD2 adapters
  • Read and clear fault codes
  • View live engine parameters
  • Detailed diagnostics
  • Works with most OBD2 vehicles
  • Real-time diagnostics
  • Advanced performance metrics
Features
Read full description

Your check-engine light just came on and nobody will tell you what it means. AutoDoctor turns any ELM327 OBD2 adapter and your phone into a full diagnostic scanner, so you walk into the workshop already knowing what is wrong and what it should cost. WHAT YOU GET Read and clear fault codes Stored, pending and permanent codes from every module that answers, with the freeze frame captured when the fault happened. Clear them once the repair is done and confirm the light stays off. 2,573 codes explained in plain language An offline library of generic powertrain, chassis, body and network codes plus manufacturer-specific tables for Toyota, Ford, GM, Honda, Nissan, Hyundai/Kia, VW/Audi, BMW, Mercedes, Chrysler, Mazda, Subaru, Mitsubishi and Volvo. The codes people actually meet come with symptoms, likely causes ranked by how often they fail, the checks to do first, and rough part and labour costs. An AI mechanic that reads your scan Not a generic chatbot. It receives your codes, freeze frame, readiness monitors and live readings and answers about your car: what is most likely wrong, whether it is safe to drive, what to check first, and what parts usually cost. Ask follow-up questions about the same scan. Live engine data Every standard Mode 01 sensor your car supports, discovered automatically. Gauges, list and graph views, a trip computer, fuel economy, and 0-60 mph and quarter-mile timers. Record a session to CSV and share it. The tests a workshop runs I/M emissions readiness monitors with a smog-check verdict, on-board monitor test results (Mode 06), calibration IDs and CVNs, VIN decode, and a battery and charging check. Your garage, offline 80+ makes and 1,300+ models built in, so the pickers work with no signal. Every scan is saved per vehicle and exports to PDF, CSV or JSON. WORKS WITH YOUR ADAPTER Bluetooth LE adapters (Vgate iCar, Veepeak, OBDLink, Carista, vLinker and other ELM327 clones) and Wi-Fi adapters. Any OBD2-compliant car, generally 1996 and newer in the US, 2001+ petrol and 2004+ diesel in the EU. NO ADAPTER YET? Open the built-in demo vehicle and explore every screen with simulated data before you buy hardware. HONEST LIMITS AutoDoctor reads and clears diagnostic data. It does not program, code or reflash control modules. Manufacturer-specific readings are labelled as such. AI guidance is based on your scan data and is not a substitute for inspection by a qualified mechanic. SUBSCRIPTION AutoDoctor is subscription-based; all diagnostic features require an active subscription. Pricing and plans are shown in the app before you buy. Payment is charged to your Apple ID account at confirmation. The subscription renews automatically unless cancelled at least 24 hours before the period ends; manage or cancel it in your account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://obd-scanner-vcws.gowalk.com/p/obd-scanner/privacy

About

2FA.Authenticator

Features
Read full description

Protect your online accounts with the 2FA Authenticator, your essential tool for secure two-factor authentication. This app generates secure, time-based one-time passcodes (TOTP) to add an extra layer of protection to your accounts. Easily scan QR codes or manually enter secret keys to start generating secure codes in seconds. Key Features: • Secure Code Generation: Generate 6-8 digit verification codes that change every few seconds, adding a vital layer of security to your accounts. • Scan QR Codes: Quickly and easily add accounts by scanning QR codes provided by various services. • Manual Key Entry: Add accounts manually by entering your secret key if a QR code is unavailable. • Organized Account Management: Keep all your 2FA accounts in one place with an intuitive and easy-to-use interface. Quickly search and find your accounts. • Secure Connection: Our app ensures a secure link between your accounts and the authenticator app, so only your device can generate valid codes. • Explore 2FA Facts: Learn more about two-factor authentication, how it works, and why it matters with our integrated FAQ section. The 2FA Authenticator is the simplest way to strengthen your online security and protect your sensitive information. Download now and take control of your digital safety. Subscription Information Subscription Payments: Payments for subscriptions will be charged to your iTunes account at confirmation of purchase and at the beginning of each renewal period. Your subscription automatically renews unless cancelled. Subscription Cancellation: You can cancel your subscription in iTunes settings at least 24 hours before the end of the next subscription cycle. Cancellation will be effective the day after the last day of the current subscription period, and you will be downgraded to the free version of the service. Privacy Policy: https://docs.google.com/document/d/1TYLoSOtqqqDTOg-qQtRqCYxzrfxEcOu68_adX_hsZWw/edit?usp=sharing Terms and Conditions: https://docs.google.com/document/d/1GdUE5bYvBfcMf9yHiiQ8Xw18ZSkyYx6Q4hErH-s4RYw/edit?usp=sharing

Screenshots

AutoDoctor4 screens
2FA.Authenticator4 screens

Verdict

The call

The clearest difference is update cadence: 2FA.Authenticator at fortnightly against AutoDoctor's every 5 months. AutoDoctor's advantage is device support (3 vs 1). On price, ads, in-app purchases 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. AutoDoctor sells 1 in-app purchase, starting at $4.99 per 7 days and 2FA.Authenticator sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AutoDoctor ships an update every 5 months, 2FA.Authenticator fortnightly. The most recent releases landed on September 25, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 7 level
AutoDoctor versus 2FA.Authenticator: the parameters behind the verdict, then further details
ParameterAutoDoctor2FA.Authenticator
PriceFreeFree
Rating5.0 (7 ratings) — better—
Number of ratings7 — better—
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.6
Further details — not scored
Size42 MB6 MB
Age rating4+17+
DeveloperGowalk - FzcoMurat Dikenci

In-app purchases

1 purchases

AutoDoctor

Subscriptions1
  • Premium Access$4.997 Days
2 purchases

2FA.Authenticator

Subscriptions2
  • Authenticator Pro$4.997 Days
  • Authenticator Pro$39.991 Year

Questions

Is AutoDoctor free?
AutoDoctor is free to download, with in-app purchases available.
Is 2FA.Authenticator free?
2FA.Authenticator is free to download, with in-app purchases available.
Do AutoDoctor or 2FA.Authenticator have ads?
Neither AutoDoctor nor 2FA.Authenticator shows ads.
Which is updated more often, AutoDoctor or 2FA.Authenticator?
AutoDoctor ships an update every 5 months, and 2FA.Authenticator fortnightly. Most recently, AutoDoctor was updated on September 25, 2026 and 2FA.Authenticator on October 2, 2026.

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