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Best Engine Monitoring Apps

228+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated June 2026

The best engine monitoring apps on iPhone average 4.3★ across 228+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for Engine Monitoring

BlueMAX Aircraft Monitor#1

BlueMAX Aircraft Monitor by FlightData Solutions LLC

Aircraft Engine Data Display
Editor's Choice
🔧 Utilities
4.4(5 ratings)
Free
BlueMAX Aircraft Monitor screenshot 1
BlueMAX Aircraft Monitor screenshot 2
BlueMAX Aircraft Monitor screenshot 3

This application streams real-time aircraft and engine data to your mobile device, supplementing standard engine instrumentation and allowing for data analysis and logging. With features like moving-map display, tank switching, and alarm notifications, it helps you monitor and analyze your aircraft's performance, and upload data to third-party services for further review.

OBD2 Car Scanner - EOBD Facile#2

OBD2 Car Scanner - EOBD Facile by Outils OBD Facile

Torque ELM327 Diagnostic Tool
Strong Contender
🔧 Utilities
4.6😐(4.8K 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
Engine Link - OBD II diagnosis#3

Engine Link - OBD II diagnosis by K SOLUTION LLC

Vehicle monitoring & diagnosis
Worth Considering
🔧 Utilities
2.8😐(61 ratings)
$5.99
Engine Link - OBD II diagnosis screenshot 1
Engine Link - OBD II diagnosis screenshot 2
Engine Link - OBD II diagnosis screenshot 3
Engine Link - OBD II diagnosis screenshot 4
Engine Link - OBD II diagnosis screenshot 5

Engine Link is a powerful OBD II diagnostic app that enables users to monitor their vehicle's performance in real-time, access diagnostic trouble codes, and gather valuable data for analysis and maintenance. Stay informed about your car's health and performance with this essential tool for car enthusiasts and everyday drivers alike.

What We Love

  • 🚀 Works as expected
  • 👍 Flexible and customizable
  • 💡 Supports custom PIDs
  • 🚀 Reliable connection

Room to Improve

  • 🐛 Doesn't work with all OBD dongles
  • 🐛 Compatibility issues with newer iOS versions
  • 👎 Outdated and clunky interface

More Engine Monitoring apps to explore

4
OBDLink
OBDLink
OBDLink
by OBD Solutions LLC
Free

Turn your phone or tablet into a powerful diagnostic scan tool with this app, designed exclusively for use with OBDLink MX, CX, and MX WiFi adapters. Enjoy features such as checking and clearing trouble codes, real-time data display, emissions readiness, fuel economy estimation, customizable dashboards, and more. Get detailed insights into your vehicle's performance effortlessly!

✈️ Travel
(12K)
5
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
Fear No Fix™
Free

BlueDriver is a premium OBD2 scan tool used by professionals and vehicle owners to diagnose and fix issues. Features include generating repair reports, scanning trouble codes, and offering enhanced diagnostics for various car models. Visit the website to see what users are saying and connect with the community on social media.

📊 Productivity
(13K)
6
OBDeleven – OBD2 car scanner
OBDeleven – OBD2 car scanner
OBDeleven – OBD2 car scanner
Diagnostics, service & coding
Free

Unlock the full potential of your car with an innovative diagnostic application. Easily scan and analyze your vehicle's data for optimal performance.

🔧 Utilities
(1.1K)
7
Nee-Vo
Nee-Vo
Nee-Vo
by Reseau sans fil Otodata Inc
Free

Track tank levels accurately in real-time, view usage history, receive customizable alerts, and easily request service with the Nee-Vo app. Manage multiple tanks and share data with up to 3 users. Get started by installing the Otodata telemetry unit and activating your account with the provided code.

🔧 Utilities
(7.3K)
8
BimmerLink
BimmerLink
BimmerLink
by SG Software GmbH & Co. KG
Free
$39.99 | 100% OFF

Access real-time data from your BMW or MINI with BimmerLink, including reading trouble codes, monitoring sensor values, controlling the exhaust flap, DPF regeneration, and more. Enhance your driving experience with the CarPlay add-on and seamlessly integrate vehicle monitoring. Browse supported cars and required accessories at https://bimmerlink.app.

📊 Productivity
(7.6K)
9
FIXD OBD2 Scanner
FIXD OBD2 Scanner
FIXD OBD2 Scanner
Clear Your Check Engine Light
Free

An auto diagnostic application that decodes car issues into layman's terms, alerts you to maintenance needs, and now offers FIXD Premium for expert support from mechanics. Ensure your car's health and longevity with FIXD.

🔧 Utilities
(42)
10
M-LINK Connect
M-LINK Connect
M-LINK Connect
Fleet Management monitoring.
Free

Manage your fleet remotely with a system that provides real-time management information, helping reduce costs in industrial environments. Stay on top of your fleet's performance anywhere, anytime, and optimize your operations for greater efficiency.

💼 Business
(8)
11
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.

🔧 Utilities
(393)
12
Ron StageMaster Monitoring
Ron StageMaster Monitoring
Ron StageMaster Monitoring
by Eilon Engineering
Free

This wireless load monitoring system helps prevent overloads on stage by tracking loads in real-time and displaying them on a mobile device. With easy installation and long battery life, it provides a reliable solution for ensuring safety in live events, and you can learn more about how it can work for you.

🔧 Utilities
(3)
13
SBMonitor
SBMonitor
SBMonitor
AdacsMobile
Free

Connect to your surveillance system and monitor multiple devices remotely, with features including live video and audio, location tracking, and customizable connections. Download now to start monitoring your devices and stay in control with a comprehensive and user-friendly experience.

💼 Business
(3)
14
Holman Insights
Holman Insights
Holman Insights
by ARI - Automotive Resources International
Free

Holman Insights is a versatile application offering Fleet Managers the ability to manage fleet activities, approve actions remotely, access industry news, and use a dashboard on their phones. Drivers can monitor vehicle data, request assistance, receive alerts, find service providers, and report mileage conveniently. Experience seamless fleet and driver management with Holman Insights today!

💼 Business
(28K)
15
ManageEngine Ping Tool
ManageEngine Ping Tool
ManageEngine Ping Tool
Smart Set of Network Tools
Free

Monitor your network and websites with ease using this smart set of network tools. Get real-time data on server availability, performance metrics, website response times, and more, all from your mobile device. Effortlessly manage your network with this comprehensive tool.

💼 Business
(674)
16
123\Tune+
123\Tune+
123\Tune+
by Albertronic B.V.
Free

This application allows users to take full control of their classic car's ignition, adjusting and uploading custom curves wirelessly, while monitoring real-time engine data. With advanced features like theft protection and a soft rev limiter, it offers a unique way to test and optimize ignition timing for improved performance.

🔧 Utilities
(225)
17
Engine Link LE
Engine Link LE
Engine Link LE
by K SOLUTION LLC
Free

Turn your iPhone into a vehicle performance and diagnostics tool with this app, which connects to your OBD2 engine management system via a low-energy Bluetooth adapter to display real-time data, read and clear fault codes, and more. With customizable gauges, graphing capabilities, and a HUD mode, this app provides a comprehensive and user-friendly experience for monitoring and optimizing your vehicle's performance.

⚽ Sports
(12)
18
Car Play Connect: Remote Sync
Car Play Connect: Remote Sync
Car Play Connect: Remote Sync
Digital Mobile Driving
Free

Experience the ultimate car companion with Car Play Connect: Remote Sync! Access vehicle information, check fuel levels, and more with just a tap, enhancing your driving experience. Download now for seamless interaction with your car.

🔧 Utilities
(19K)
19
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!

🔧 Utilities
(802)
20
Infocar - OBD2 ELM Scanner
Infocar - OBD2 ELM Scanner
Infocar - OBD2 ELM Scanner
OBD2 Car Scanner & Diagnostic
Free

Infocar is a comprehensive vehicle management app offering diagnostic scanning, driving style analysis, real-time dashboard monitoring, driving records tracking, and vehicle maintenance management. Users can subscribe to Infocar PRO for advanced features and unlimited monitoring capabilities. Accessible on iOS 12 or higher, Infocar is designed to work optimally with Infocar devices for seamless functionality.

🔧 Utilities
(250)

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