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Best Trajectron Egr Apps

216+ iOS apps curated and reviewed

4.2 avg rating
17 free apps
Updated May 2026

Looking for free trajectron egr apps? 17 of our 216+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Trajectron Egr

OBD2 Car Scanner - EOBD Facile#1

OBD2 Car Scanner - EOBD Facile by Outils OBD Facile

Torque ELM327 Diagnostic Tool
Editor's Choice
🔧 Utilities
4.6😐(4.8K 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

An ultimate OBD2 Bluetooth car scanner app that helps diagnose engine and transmission issues by connecting to an ELM327 adapter. View and clear fault codes, see real-time data, and track trip records with this powerful tool. Check compatibility with your vehicle and access accurate diagnostics to take control of your car maintenance.

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
OBD Fusion#2

OBD Fusion by OCTECH LLC

OBD2 scan tool & diagnostics
Strong Contender
✈️ Travel
4.7😊(31 ratings)
$9.99In-App Purchases
#4in Travel
OBD Fusion screenshot 1
OBD Fusion screenshot 2
OBD Fusion screenshot 3
OBD Fusion screenshot 4
OBD Fusion screenshot 5
OBD Fusion screenshot 6

Access real-time data from your car's onboard diagnostic system with this powerful OBD2 scan tool. Monitor and analyze your vehicle's performance, troubleshoot issues, and make informed maintenance decisions. Get insights and stay on top of your car's health with OBD Fusion now!

What We Love

  • 👍 Easy to use
  • 🚀 Customizable dashboards
  • 💡 Helpful for diagnostics and monitoring
  • 🔍 Detailed vehicle information

Room to Improve

  • 🐛 Connectivity issues
  • 🔒 Limited vehicle support
  • 💰 Expensive for some features
DashCommand - OBD-II Gauges#3

DashCommand - OBD-II Gauges by Auto Meter Products, Inc.

OBD-II Dashboards, Scan Tool
Worth Considering
⚽ Sports
4.2😐(2.1K ratings)
$9.99In-App Purchases
#30in Sports
DashCommand - OBD-II Gauges screenshot 1
DashCommand - OBD-II Gauges screenshot 2
DashCommand - OBD-II Gauges screenshot 3
DashCommand - OBD-II Gauges screenshot 4
DashCommand - OBD-II Gauges screenshot 5

Transform your iPhone into a customizable monitoring system with DashCommand - a professional OBD-II app for monitoring engine performance, fuel economy, and more. Easily read and clear check engine lights, track G-forces, map race tracks, and log OBD-II data. Check out a video of DashCommand in action: [here](https://www.youtube.com/watch?v=y12tbLmf_J0). Explore compatible hardware options: [here](http://palmerperformance.com/hardware).

What We Love

  • 🚀 Works great
  • 👍 Useful features
  • 🔧 Helps diagnose issues
  • 💰 Worth the money

Room to Improve

  • 🐛 Connection issues
  • 🔍 Limited vehicle support
  • 🕰️ Outdated app

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4
Traxxas Link
Traxxas Link
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OBD2 Car Scanner - Torque FixD
OBD2 Car Scanner - Torque FixD
OBD2 Car Scanner - Torque FixD
OBD2 ELM Diagnostic, Car HUD
Free

An app for car owners to diagnose their vehicle's internal systems through OBD2, offering comprehensive diagnostics, real-time monitoring, and maintenance guidance. Compatible with various OBD2 scanners and a wide range of car brands, it provides customizable dashboards, emissions readiness checks, and an HUD mode for effortless monitoring while driving. Unlock your vehicle's full potential today!

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6
Torque Pro : OBD2 Car Scanner
Torque Pro : OBD2 Car Scanner
Torque Pro : OBD2 Car Scanner
Torque OBD2 Car Scanner ELM
Free
$12.99 | 100% OFF

An easy-to-use OBD2 car scanner app that connects to your car via Bluetooth or Wi-Fi, offering features like reading car data, clearing trouble codes, visualizing real-time performance, and more. Contact us at support@sadynamics.com for any inquiries.

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7
MHD Flasher
MHD Flasher
MHD Flasher
by MHD Tuning UG (haftungsbeschraenkt)
Free

A comprehensive flash tuning app for BMW vehicles, the application allows for complete DME remapping with OBD flashing capabilities. Users can easily install the app at home, customize engine performance, and monitor various engine parameters for optimal running condition. Get maximum performance and safety with this app.

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8
OBD2 Scanner: Torque ELM 327
OBD2 Scanner: Torque ELM 327
OBD2 Scanner: Torque ELM 327
Torque OBD2 Car Scanner ELM327
Free

Turn your smartphone into a car mechanic with this OBD2 scanner app! Detect issues in your vehicle, monitor performance, and access real-time data to keep your car running smoothly. Get started with your car's diagnostics now!

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9
Banks Power - Control Center
Banks Power - Control Center
Banks Power - Control Center
iDash, PedalMonster, Derringer
Free

This application gives you control over your vehicle's performance and diagnostic data, allowing you to modify throttle sensitivity and access detailed vehicle information. With it, you can instantly change how your vehicle accelerates and gain valuable insights into its performance, making it more fun and responsive to drive.

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10
Race Stats: Speedo and G Force
Race Stats: Speedo and G Force
Race Stats: Speedo and G Force
Speedometer 1/4 0-60 0-100
Free

Track your vehicle's performance with real-time GPS speed, GForce, and acceleration stats from 0-60 mph, 0-100 km/h, and 1/4 mile distances. Easily switch between metric and imperial units, and use the drag race simulation feature to test your car's limits and improve your driving skills. Start optimizing your speed with this all-in-one speedometer and GForce app today!

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11
ECU Connect
ECU Connect
ECU Connect
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Free
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12
Stratus Insight EFB
Stratus Insight EFB
Stratus Insight EFB
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13
E-Tuner 4
E-Tuner 4
E-Tuner 4
by Edelbrock Corp
Free

This exclusive iOS app communicates with your ECU via Bluetooth, allowing you to manage and live-tune various settings, monitor engine data, and optimize your vehicle's performance. With a setup wizard, advanced tuning functions, and vivid gauge displays, you can easily configure and fine-tune your vehicle's performance to your liking.

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(22)
14
inCarDoc OBD2 ELM327 Scanner
inCarDoc OBD2 ELM327 Scanner
inCarDoc OBD2 ELM327 Scanner
Car diagnostics, obd2 scanner
Free

Get real-time car diagnostics with inCarDoc OBD2 ELM327 Scanner. Easily scan your vehicle for fault codes and monitor its health on the go. Keep your car in top condition with this ultimate diagnostic tool!

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15
MHD N55 E-Series
MHD N55 E-Series
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by MHD Tuning UG (haftungsbeschraenkt)
Free
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16
Powergate
Powergate
Powergate
by Alientech Srl
Free

Customize your vehicle's performance at any time with this mobile app that allows you to adjust engine parameters directly from your smartphone. Connect your vehicle to the app, choose from a wide range of configurations, and unleash your tuning desires - whether for racing, fuel efficiency, or just for fun.

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17
FlightReady E6B
FlightReady E6B
FlightReady E6B
E6B Flight Computer
$7.99

FlightReady E6B is an E6B flight computer app with over 100 aviation functions, conversions, and utilities, offering comprehensive and accurate calculations using the correct scientific formulas for planning flight legs, determining airspeed, analyzing winds, and calculating altitude parameters.

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18
GFGCAM
GFGCAM
GFGCAM
by Shenzhen City, Zhi Yang Software Co., Ltd.
Free

A convenient app for car owners with tachographs, allowing remote access to vehicle recorders for real-time monitoring and updates. Stay connected with your car's status on the go!

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19
TunerView
TunerView
TunerView
Automotive Dash
Free

Track and optimize your vehicle's performance with a Realtime Datalog/Dash tool that connects to your ECU via a Bluetooth adapter. Purchase datalog protocols via In-App payment, with the option for refunds. Contact support for assistance or refunds.

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20
OBD2 Scanner ELM327: GaragePro
OBD2 Scanner ELM327: GaragePro
OBD2 Scanner ELM327: GaragePro
OBD Scanning at turbo speed!
Free

GaragePro is an advanced OBD Scanner app offering comprehensive diagnostic features for cars and bikes, including reading and deleting fault codes from various modules, live data monitoring, special OBD functions like Injector coding and DPF regeneration, smog check readiness, service light resets, and more. Compatible with a wide range of vehicles, GaragePro provides detailed insights and support for automotive enthusiasts, repair shops, and DIYers.

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