Comparison

OBDify Car Diagnostic vs TayScan

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

Head to head
About

OBDify Car Diagnostic

Features
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OBDify is a professional diagnostic and programming application for FCA / Mopar vehicles β€” Jeep, Dodge, RAM and Chrysler. Connect a compatible Bluetooth OBD-II adapter (e.g. ELM327, vLinker MS or OBDLink MX+) for dealer-level access to module information, fault codes, live data, actuator tests and 175+ guided procedures. The app communicates directly with supported control modules and offers clear, structured tools for reading faults, monitoring live data, testing components, editing configurations and following guided service procedures. With its intuitive interface, OBDify is suitable for both drivers and workshops who need fast, reliable access to FCA diagnostics β€” no laptop, no dealer visit. ---------- PLANS FREE - Read configuration parameters - Read error codes (DTCs) - Shareable diagnostic reports PREMIUM β€” subscription, unlimited vehicles - Everything in Free - Read & clear error codes - Live data monitoring - Actuator tests - Works on every car you plug into VEHICLE UNLOCK β€” one-time purchase, one vehicle, no subscription - Everything in Premium, for one vehicle - Edit configuration parameters - Guided service procedures - Configuration backup & restore Choose Premium for core diagnostics across unlimited cars, or unlock the complete app for a single vehicle with a one-time payment β€” no subscription required. ---------- SUPPORTED VEHICLES OBDify works with OBD-II compatible vehicles, with extended functionality for: Jeep, Dodge, RAM, Chrysler, Alfa Romeo, Fiat, Lancia, Maserati and other FCA-based platforms. For support: contact@obdify.net ---------- SUBSCRIPTION INFORMATION - OBDify Premium is an auto-renewable subscription, available in Monthly and Annual plans - A free trial is available with each plan - The exact price and trial length are shown in the app, in your local currency, before you confirm - Subscription automatically renews unless cancelled at least 24 hours before the end of the current period - Manage or cancel anytime in your device Account Settings - Vehicle Unlock is a one-time purchase, not a subscription Privacy Policy: https://obdify.net/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Vehicle Use Terms: https://obdify.net/terms/

About

TayScan

Features
Read full description

Unlock Advanced Telemetry & Diagnostics for Your Porsche Taycan EV TayScan gives Taycan owners, enthusiasts, and independent specialists deep insights into their high-voltage battery system, real-time vehicle telemetry, and fault managementβ€”all directly via a Bluetooth OBD-II adapter. Key Features: β€’ Battery Health & SoH Reports Generate official-style PDF Diagnostic Certificates detailing true State of Health (SoH), Max Usable Capacity (kWh), cell balance, and charging performance limits. Ideal for long-term health tracking or pre-purchase inspections (PPI). β€’ Real-Time Telemetry & Fast-Charge Monitoring Track high-voltage pack voltage, cell span limits, average pack temperature, and real-time pre-conditioning status to ensure peak 270 kW DC fast-charging performance. β€’ Cell Voltage & Imbalance Matrix Visualize individual cell voltages and track pack drift down to the millivolt (mV) level to verify anode-cathode balancing and pack integrity. β€’ OBD-II Fault Code Scanner Quickly scan for Diagnostic Trouble Codes (DTCs) across battery management systems and vehicle gateways, inspect error details, and clear fault codes instantly. β€’ 100% Private & Direct All vehicle queries run locally on your device via low-latency UDS commands. No account registration, subscriptions, or cloud servers required. β€’ Built-in Vehicle Simulator Explore all telemetry screens and preview diagnostic metrics in Demo Mode without needing a physical vehicle connected. Supported Bluetooth (BLE) Adapters: - Vgate: iCar Pro BLE, vLinker MC+, vLinker BM+ - OBDLink: OBDLink CX, OBDLink MX+ (BLE mode) - Veepeak: OBDCheck BLE, OBDCheck BLE+ - Carista: OBD2 BLE Adapter - LELink: LELink / LELink2 - Generic BLE: Any standard ELM327 BLE 4.0+ adapter Support & Feedback: Have questions or want to request support for your specific adapter? Reach out to us directly at feedback@tayscan.nl. Disclaimer: TayScan is an independent diagnostic application. Porsche and Taycan are registered trademarks of Dr. Ing. h.c. F. Porsche AG. TayScan is not affiliated with or endorsed by Porsche AG.

Screenshots

OBDify Car Diagnostic4 screens
TayScan3 screens

Verdict

The call

The clearest difference is in-app purchases: TayScan at none against OBDify Car Diagnostic's 6. TayScan also leads on ads (none vs shown). OBDify Car Diagnostic's advantage is update cadence (fortnightly vs monthly) and iOS requirement (15.0 vs 26.5). On price and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. OBDify Car Diagnostic sells 6 in-app purchases, starting at $4.99 per month. TayScan asks for nothing beyond the download.

UpkeepUpdate frequency

OBDify Car Diagnostic ships an update fortnightly, TayScan monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences Β· 2 level
OBDify Car Diagnostic versus TayScan: the parameters behind the verdict, then further details
ParameterOBDify Car DiagnosticTayScan
PriceFreeFree
Update frequencyFortnightly β€” betterMonthly
AdsYesNo β€” better
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better26.5
Further details β€” not scored
Size64 MB9 MB
Age rating4+4+
DeveloperOBDifyNiels Hollatz

In-app purchases

6 purchases

OBDify Car Diagnostic

Subscriptions2
  • OBDify Premium (Monthly)7 Days trial$4.991 Month
  • OBDify Premium (Annual)14 Days trial$47.991 Year
One-time4
  • Unlock 1 VIN$19.99
  • Unlock 3 VINs$49.99
  • Unlock 10 VINs$119.99
Show 1 more
  • Unlock 25 VINs$199.99
None

TayScan

No in-app purchases

Questions

Is OBDify Car Diagnostic free?
OBDify Car Diagnostic is free to download, with in-app purchases available.
Is TayScan free?
TayScan is free to download, with no in-app purchases.
Do OBDify Car Diagnostic or TayScan have ads?
OBDify Car Diagnostic shows ads; TayScan does not.
Which is updated more often, OBDify Car Diagnostic or TayScan?
OBDify Car Diagnostic ships an update fortnightly, and TayScan monthly. Most recently, OBDify Car Diagnostic was updated on November 5, 2026 and TayScan on October 31, 2026.

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