Comparison

LookApp QR 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

LookApp QR

Features
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LookApp – Your digital profile on any QR code and NFC tag. Be reachable through a simple QR code or NFC tag — anonymously, securely, and without requiring others to know your personal information. LookApp connects the physical world with digital communication: Stick your QR code on your car, your product, your business card, or wherever you want — and let people contact you whenever needed. HOW IT WORKS 1. Register and create your personal LookApp profile. 2. Link your QR code or NFC tag to your profile. 3. Anyone who scans your code can immediately send you a message — without having to register. 4. You receive the message directly in the app and can reply, chat, or call. YOUR FEATURES AT A GLANCE QR Code & NFC Profile Link any number of QR codes or NFC tags to your profile. Ideal for cars, products, businesses, events, or personal business cards. Receive Anonymous Messages Others can send you messages without signing up and without knowing your contact details. You remain in full control. Privacy by Design Your personal data stays protected. Communication takes place through our secure infrastructure — no one sees your phone number or email address. Chat, Voice & Video Calls Communicate with other LookApp users via text message, voice call, or video call — directly in the app, in real time. Manage Products & Licenses Register and manage your QR code products and NFC tags conveniently through the app. Advanced features can be unlocked with a license. Push Notifications Never miss a message. You’ll be notified immediately when someone scans your code and sends you a message. PERFECT FOR Car Owners — Stay reachable if your car is incorrectly parked or if someone needs to contact you about roadside assistance. Dealers & Sellers — Let customers contact you directly. Package Recipients & Delivery Drivers — Fast, anonymous communication. Individuals — Stay discreetly reachable without sharing your phone number. Businesses — A smart contact solution for physical products.

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
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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

LookApp QR4 screens
OBD2 Scanner + Engine Sound4 screens

Verdict

The call

The clearest difference is in-app purchases: LookApp QR at none against OBD2 Scanner + Engine Sound's 2. LookApp QR also leads on ads (none vs shown) and device support (3 vs 1). OBD2 Scanner + Engine Sound's advantage is update cadence (every 9 days vs every 3 months). On price 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. OBD2 Scanner + Engine Sound sells 2 one-off in-app purchases. LookApp QR asks for nothing beyond the download.

UpkeepUpdate frequency

LookApp QR ships an update every 3 months, OBD2 Scanner + Engine Sound every 9 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 4 level
LookApp QR versus OBD2 Scanner + Engine Sound: the parameters behind the verdict, then further details
ParameterLookApp QROBD2 Scanner + Engine Sound
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size130 MB6 MB
Age rating4+4+
DeveloperFazli BozkurtSena Takasawa

In-app purchases

None

LookApp QR

No in-app purchases

2 purchases

OBD2 Scanner + Engine Sound

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

Questions

Is LookApp QR free?
LookApp QR is free to download, with no in-app purchases.
Is OBD2 Scanner + Engine Sound free?
OBD2 Scanner + Engine Sound is free to download, with in-app purchases available.
Do LookApp QR or OBD2 Scanner + Engine Sound have ads?
OBD2 Scanner + Engine Sound shows ads; LookApp QR does not.
Which is updated more often, LookApp QR or OBD2 Scanner + Engine Sound?
LookApp QR ships an update every 3 months, and OBD2 Scanner + Engine Sound every 9 days. Most recently, LookApp QR was updated on October 31, 2026 and OBD2 Scanner + Engine Sound on October 28, 2026.

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