Comparison

ScanMaster Lite vs OBD2 Scanner + Engine Sound

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

Head to head
About

ScanMaster Lite

Monitor your car's real-time data, diagnose issues, and enhance performance with this OBD2 scanner app. Connect via Bluetooth to an OBD2 device or ELM 327 adapter to read fault codes and gain insights into engine health and fuel efficiency.

Highlights
  • Real-time vehicle monitoring
  • Read and clear OBD-II fault codes
  • Car performance metrics
  • Wide vehicle compatibility
  • User-friendly interface
  • Connects with ELM327 adapters
Features
Read full description

Take control of your vehicle’s health and performance with ScanMaster Lite: ELM327 OBD-2, the easiest and most efficient OBD2 car scanner app. With the ability to connect your car via Bluetooth to an OBD2 device or ELM 327 adapter, you can monitor your car's real-time data, diagnose issues, and enhance its performance like never before. Key Features: ◆ Real-time Vehicle Monitoring: Access live data from your car’s sensors, including speed, engine RPM, fuel consumption, and more. ◆ OBD Fault Codes: Read and clear OBD-II trouble codes, helping you identify potential issues with your car and avoid expensive repairs. ◆ Car Performance Metrics: Get insights into your car’s performance with detailed statistics on engine health, fuel efficiency, and other essential metrics. ◆ Remote Control: Remotely manage some vehicle functions to keep your car running smoothly. ◆ Wide Vehicle Compatibility: Supports a wide range of OBD2-compliant vehicles, ensuring it works with most cars manufactured worldwide. Why Choose ScanMaster Lite? ◆ User-Friendly Interface: Intuitive design makes it easy for both beginners and experienced users to navigate. ◆ Affordable Diagnostics: Save time and money by diagnosing issues at home before visiting the mechanic. ◆ Compatible with ELM327 Adapters: Seamlessly connects with popular OBD2 Bluetooth devices and ELM 327 adapters for quick setup and diagnostics. Whether you’re a car enthusiast, a DIY mechanic, or simply want to keep your car running smoothly, ScanMaster Lite: ELM327 OBD-2 is the perfect app to put you in control of your vehicle’s health. Premium Access: ◆ To access all the premium features and content, you need to subscribe or pay once for lifetime access. The cost of the purchase is charged to your iTunes account. ◆ Subscriptions automatically renew and are billed at the rate and period you choose based on your subscription plan. User accounts are charged for auto-renewal within 24-hours prior to the end of the current period. ◆ Subscriptions may be managed and auto-renewal may be turned off in iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. You have any questions or concerns? Feel free to contact us. We're always here to help. Privacy Policy: https://sites.google.com/view/smart-technologies-gmbh/pp Term Of Service: https://sites.google.com/view/smart-technologies-gmbh/tos

About

OBD2 Scanner + Engine Sound

Monitor your car's engine performance and hear its sound in real-time. Customize your dashboard with various widgets and track your drives with detailed maps and trip data. Offers a demo mode and optional Pro features for an enhanced experience.

Highlights
  • Real-time OBD2 data display
  • Engine sound simulation based on RPM
  • Customizable dashboard with widgets
  • Trip computer and fuel economy tracking
  • Speed and RPM on map view
  • HUD mode for windshield projection
Features
Read full description

See — and hear — your car in real time. Connect an ELM327 Bluetooth (BLE) adapter and the app turns live OBD2 data into a fast, modern dashboard: RPM, speed, coolant, throttle, fuel, and every sensor your vehicle supports, auto-detected. No subscription. Ever. WHAT MAKES IT DIFFERENT • A genuinely modern interface — not the dated look of most OBD apps • A one-of-a-kind engine-sound simulation driven by your real RPM • Speed and RPM drawn on the map, color-coded (satellite view included) • Buy once for Pro — no monthly fees, unlike many scanners BUILD YOUR OWN DASHBOARD Mix and match four widget types — digital tiles, analog needle gauges, live charts, and the trip map — then reorder them into your own instrument screen. A mirrored HUD mode projects your speed onto the windshield at night. FIVE FOCUSED TABS • Dashboard — your own widget layout, plus HUD mode • Data — every live sensor, overlaid or separate charts, CSV export (long or spreadsheet-friendly wide format) • Drive — trip computer with fuel economy, the color-coded track map, a G-force ball, and 0–100 timing • Engine Sound — procedural sound that follows your real RPM (all presets free) • Tools — adapter info and communication log FREE INCLUDES Live data, the dashboard, track map, trip computer, HUD, and engine sound — free, with a small banner ad. PRO (ONE-TIME PURCHASE, OPTIONAL) • Unlimited CSV logging • Save your 0–100 and G-force runs • Remove ads Prefer just no ads? A cheaper ad-removal-only purchase is also available. NO ACCOUNT NEEDED Your vehicle data comes straight from the ELM327 adapter over Bluetooth and is processed on your device — there is no developer server collecting it. The free version shows ads served by Google's ad SDK (buy Ad Removal or Pro and no ads are shown). Try it with no hardware using the built-in demo mode. REQUIRES an ELM327-compatible Bluetooth LE (BLE) OBD2 adapter and a vehicle with an OBD2 port (most cars sold since 2008). SUPPORT Questions or ideas? Contact: support@takasawadynamics.com

Screenshots

ScanMaster Lite3 screens
OBD2 Scanner + Engine Sound4 screens

Verdict

The call

The clearest difference is ads: ScanMaster Lite at none against OBD2 Scanner + Engine Sound's shown. ScanMaster Lite also leads on ratings volume (6 vs 1). OBD2 Scanner + Engine Sound's advantage is update cadence (every 9 days vs every 5 months) and rating (4.0 vs 3.7). On price, in-app purchases, monetization model and device support 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. ScanMaster Lite sells 3 in-app purchases, starting at $2.99 per 7 days and OBD2 Scanner + Engine Sound sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Scanner + Engine Sound holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: ScanMaster Lite has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

ScanMaster Lite ships an update every 5 months, OBD2 Scanner + Engine Sound every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
ScanMaster Lite versus OBD2 Scanner + Engine Sound: the parameters behind the verdict, then further details
ParameterScanMaster LiteOBD2 Scanner + Engine Sound
PriceFreeFree
Rating3.7 (6 ratings)4.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings6 — better1
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperSMART Technologies GmBHSena Takasawa

Customer experience

ScanMaster Lite

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

OBD2 Scanner + Engine Sound

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

ScanMaster Lite

Subscriptions2
  • Premium Weekly$2.997 Days
  • Premium Monthly$6.991 Month
One-time1
  • Premium Lifetime$14.99
2 purchases

OBD2 Scanner + Engine Sound

One-time2
  • Remove Ads$1.99
  • car_ui Pro (One-Time)$4.99

Questions

Is ScanMaster Lite free?
ScanMaster Lite is free to download, with in-app purchases available.
Is OBD2 Scanner + Engine Sound free?
OBD2 Scanner + Engine Sound is free to download, with in-app purchases available.
Which has better reviews, ScanMaster Lite or OBD2 Scanner + Engine Sound?
OBD2 Scanner + Engine Sound is rated higher. ScanMaster Lite averages 3.7 out of 5 from 6 ratings, while OBD2 Scanner + Engine Sound averages 4.0 from 1 ratings.
Do ScanMaster Lite or OBD2 Scanner + Engine Sound have ads?
OBD2 Scanner + Engine Sound shows ads; ScanMaster Lite does not.
Which is updated more often, ScanMaster Lite or OBD2 Scanner + Engine Sound?
ScanMaster Lite ships an update every 5 months, and OBD2 Scanner + Engine Sound every 9 days. Most recently, ScanMaster Lite was updated on October 24, 2026 and OBD2 Scanner + Engine Sound on October 25, 2026.

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