1. Home
  2. Topics
  3. Dtd Code

Best Dtd Code Apps

222+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated May 2026

Finding the right dtd code app can be overwhelming with so many options. We've analyzed 222+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Dtd Code

OBD2 Car Scanner - EOBD Facile#2

OBD2 Car Scanner - EOBD Facile by Outils OBD Facile

Torque ELM327 Diagnostic Tool
Strong Contender
🔧 Utilities
4.6😐(4.9K ratings)
FreeIn-App Purchases
OBD2 Car Scanner - EOBD Facile screenshot 1
OBD2 Car Scanner - EOBD Facile screenshot 2
OBD2 Car Scanner - EOBD Facile screenshot 3
OBD2 Car Scanner - EOBD Facile screenshot 4
OBD2 Car Scanner - EOBD Facile screenshot 5
OBD2 Car Scanner - EOBD Facile screenshot 6

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

What We Love

  • 👍 Helpful for diagnosing issues
  • 🚀 Easy to use and connect
  • 💡 Provides useful vehicle data
  • 🔍 Able to read and clear error codes

Room to Improve

  • 💰 Expensive for full functionality
  • 🔒 Requires paid upgrade to access key features
  • 🐛 Connectivity issues and app crashes
FIXD OBD2 Scanner#3

FIXD OBD2 Scanner by FIXD Automotive Inc

Clear Your Check Engine Light
Worth Considering
🔧 Utilities
4.6😐(26K ratings)
FreeAdsIn-App Purchases
#45in Utilities
FIXD OBD2 Scanner screenshot 1
FIXD OBD2 Scanner screenshot 2
FIXD OBD2 Scanner screenshot 3
FIXD OBD2 Scanner screenshot 4
FIXD OBD2 Scanner screenshot 5
FIXD OBD2 Scanner screenshot 6

This app translates your car's diagnostic trouble codes into plain language, helping you understand potential issues and their severity. It provides maintenance reminders and offers advanced features like issue forecasting and emissions pre-checks with a premium subscription.

What We Love

  • 👍 Easy to use
  • 🚀 Quickly identifies problems
  • 💰 Saves money on mechanics
  • 🔍 Provides detailed diagnostic information

Room to Improve

  • 🔒 Requires subscription for full functionality
  • 💰 Expensive premium subscription
  • 🤖 Inconsistent performance across vehicles

More Dtd Code apps to explore

4
OBD2 Trouble Code
OBD2 Trouble Code
OBD2 Trouble Code
OBD ll Code Reader Guide
Free

Instantly look up your car's check engine codes on the go. Access a vast database of OBD2 codes with descriptions and potential causes for all major manufacturers. Save your search history for quick reference.

OBD2 code lookupCheck engine code descriptionsPossible cause identification
🔧 Utilities
(297)
free
5
RepairSolutions2
RepairSolutions2
RepairSolutions2
by Innova Electronics
Free

This app provides comprehensive vehicle care and repair information for car and truck owners, DIYers, and technicians. It offers diagnostic capabilities with compatible OBD2 scanners and a vast database of verified fixes from ASE Master Technicians. Users can also access free vehicle maintenance information and schedule repairs.

OBD2 scanner integrationVerified repair databaseDiagnostic trouble code definitions
🔧 Utilities
(33K)
free with in-app purchases
6
Car Scanner | OBD Auto Doctor
Car Scanner | OBD Auto Doctor
Car Scanner | OBD Auto Doctor
OBD2 diagnostics for ELM 327
Free

Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.

Read and clear OBD2 diagnostic trouble codes (DTC)Reset Check Engine LightMonitor real-time vehicle data and sensor readings
🔧 Utilities
(6.1K)
free with in-app purchases
7
BimmerCode
BimmerCode
BimmerCode
by SG Software GmbH & Co. KG
Free

Unlock hidden features and customize your BMW, MINI, or Toyota Supra. This app allows you to individually configure your vehicle for a personalized driving experience. Requires a compatible OBD adapter.

Code BMW, MINI, Toyota SupraDiscover hidden featuresIndividual vehicle configuration
📊 Productivity
(20K)
free with in-app purchases
8
Carista OBD2
Carista OBD2
Carista OBD2
Code, Service, Diagnose cars
Free

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.

Customize car behavior and unlock hidden featuresDiagnose and reset dashboard warning lightsMonitor real-time vehicle parameters
🔧 Utilities
(3.9K)
free with in-app purchases
9
AutoCode - VIN to Key Code
AutoCode - VIN to Key Code
AutoCode - VIN to Key Code
by AutoCode Inc.
Free

This app automates the generation of key codes from vehicle identification numbers (VINs). It provides locksmiths and auto businesses with 24/7 access to powerful tools for VIN scanning, verification, and conversion to key bitting, eliminating the need for phone calls and wait times.

Automated VIN to Key Code GenerationVIN Scanner, Verification & CorrectionVIN to Year, Make, and Model
💼 Business
(102)
paid
10
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
Fear No Fix™
Free

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

Read and clear trouble codes (Check Engine, ABS, etc.)Generate professional-grade Repair ReportsAccess Mode 6 and smog readiness data
📊 Productivity
(14K)
free with in-app purchases
11
Carly — OBD2 car scanner
Carly — OBD2 car scanner
Carly — OBD2 car scanner
Diagnose, Code and Service
Free

This app allows car owners to diagnose issues, monitor live engine data, and perform maintenance tasks. It offers advanced features like coding hidden car functions and detecting mileage manipulation, helping users save on repairs and understand their vehicle's health.

Read and clear fault codes from all ECUsMonitor engine live data parametersStep-by-step car repair guides
📊 Productivity
(9.8K)
free with in-app purchases
12
OBD2 Enhance Trouble Code Lite
OBD2 Enhance Trouble Code Lite
OBD2 Enhance Trouble Code Lite
Find DTCs Definition and Cause
Free

This app provides definitions and potential causes for On-Board Diagnostics (OBD) trouble codes. It covers a wide range of generic and manufacturer-specific codes for numerous vehicle models, helping users understand and potentially fix error codes.

DTC definitions from workshop manualsPossible causes for error codesCovers 73 vehicle models
🔍 Reference
(7)
ad-supported
13
BimmerLink
BimmerLink
BimmerLink
by SG Software GmbH & Co. KG
Free
$39.99 | 100% OFF

This app provides direct access to your BMW or MINI vehicle's systems. Read and clear trouble codes from all control units, monitor real-time sensor values, and control features like exhaust flaps and active sound design. It also supports battery registration, DPF regeneration, and service resets.

Read and clear trouble codes from all control unitsDisplay real-time sensor valuesRemote control of exhaust flap
📊 Productivity
(7.6K)
free with in-app purchases
14
OBD2 Car Scanner - Torque FixD
OBD2 Car Scanner - Torque FixD
OBD2 Car Scanner - Torque FixD
OBD2 ELM Diagnostic, Car HUD
Free

Diagnose your car's engine and transmission with real-time data, customizable dashboards, and emissions readiness checks. This app connects to your vehicle's OBD2 system via Wi-Fi or Bluetooth for comprehensive maintenance and performance insights.

Comprehensive diagnosticsCustomizable dashboardReal-time monitoring
🔧 Utilities
(908)
free with in-app purchases
15
Area Code Directory
Area Code Directory
Area Code Directory
Search by code, city or state
Free

Quickly find area codes using various search methods including code, city, or state. This reference app covers codes from the United States, Canada, Caribbean, and special toll-free numbers.

Search by area codeSearch by citySearch by state
🔍 Reference
(22)
free with in-app purchases
16
OBD2 Code
OBD2 Code
OBD2 Code
by Liang-Hung Publishing
Free

This app serves as a reference for standard Diagnostic Trouble Codes (DTCs). It helps users understand fault codes generated by a vehicle's onboard computer, aiding in problem diagnosis.

Diagnostic Trouble Code referenceVehicle fault code lookupProblem diagnosis aid
🔍 Reference
(3)
free
17
VIN decoder & VIN code scanner
VIN decoder & VIN code scanner
VIN decoder & VIN code scanner
VIN check - get vehicle info
Free

Instantly decode any vehicle's VIN with this app. It offers both manual input and a VIN scanner for quick, accurate vehicle information, including auction history and average pricing.

VIN code decodingReal-time VIN scannerVIN code recognition from text
🔧 Utilities
(112)
free with in-app purchases
18
Auto Agent
Auto Agent
Auto Agent
by EZ LYNK
Free

Monitor, diagnose, and update your vehicle's software remotely. This powerful tool allows you to view live data, read and clear diagnostic codes, and record data for your technician. Connect directly with your mechanic for remote assistance and software updates, saving you trips to the repair shop.

Display live vehicle dataRead and clear diagnostic trouble codesCreate and playback data recordings
🔧 Utilities
(34K)
free with in-app purchases
19
AutoZone Auto Parts & Repair
AutoZone Auto Parts & Repair
AutoZone Auto Parts & Repair
Shop Car, Truck & SUV Parts
Free

Shop for a wide range of auto parts, including car, truck, SUV, and motorcycle components. Easily find the right parts with VIN decoding and license plate lookup, and get them quickly with same-day pickup or delivery.

Shop auto, car, and motorcycle partsSame-day store pickupShip-to-home delivery
🛍️ Shopping
(207K)
free with in-app purchases
20
iOBD2-DTC
iOBD2-DTC
iOBD2-DTC
by Shenzhen Yunjia Intelligence Technology Co., Ltd.
Free

This app serves as a reference for standard Diagnostic Trouble Codes (DTCs) found in vehicles. It helps users understand fault codes generated by a car's onboard computer, aiding in problem diagnosis.

Diagnostic Trouble Code referenceFault code lookupVehicle system diagnostics
🔧 Utilities
(19)
free