LIQUI MOLY vs VIN decoder & VIN code scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LIQUI MOLY
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Learn how LSPI affects your engine and how to carefully choose the right engine oil with the LSPI Impact app. This app is optimized for the iPad but also works on any other iOS device. LIQUI MOLY: LSPI Impact is available in English and helps to explain Low Speed Pre-Ignition LSPI (= Low Speed Pre-Ignition) or SPI (Stochastic Pre-Ignition) describes the unwanted pre-ignition that occurs stochastically in the combustion chamber. It occurs at high load and low engine speed in turbocharged engines with direct injection before the spark plugs begin to spark. This problem is caused by the downsizing of engines, which means that modern engines have less displacement but are still supposed to deliver the same or even greater power. The cause of LSPI probably lies in the motor oil, tiny quantities of which get into the combustion chamber, where they are ignited in the compression process. The combustion flashes over to the fuel/air mixture and results in heavy engine knocking. Carbon deposits are also considered a significant factor in LSPI. Modern, direct injection turbocharged gasoline engines have a highly stressed injection system. The injection nozzles extend directly into the combustion chamber, so they are exposed to high temperatures, pressures and the influence of combustion residues. Deposits form rapidly at the nozzle outlets. Due to the high temperatures, the particle deposits can start to glow and ignite, which can lead to engine knocking. With LSPI the pressure in the combustion chamber is about three times that for normal combustion. The extreme pressure means that massive piston damage can occur within a short space of time.
VIN decoder & VIN code scanner
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 decoding
- Real-time VIN scanner
- VIN code recognition from text
- Auction participation check
- Average vehicle price estimation
- VIN code validation
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Our VIN Decoder & VIN Check app is the ultimate tool for checking a car's VIN code. Simply input the 17 digits of your VIN number, and our app will provide you with a wealth of information about the vehicle. To make the process even faster and more efficient, we have included a VIN scanner that can read the VIN code automatically, saving you the hassle of entering the information manually. VIN code recognition directly from text in real-time — swift, eliminating the need for picture-taking. Incredibly convenient in scenarios where a barcode is absent or obscured by pollution and other factors. For optimal functionality when using the VIN scanner, it is essential to ensure that the Vehicle Identification Number is clean and free from any contaminants. It is advisable to use a VIN recognizer in instances where the VIN code is polluted or corrupted. When utilizing the VIN recognizer, you should double-check a VIN to ensure its accuracy before proceeding with the decoding process. Enhanced VIN check - additional VIN code validation to ensure accurate entry. For those who are unfamiliar with what a VIN code is, it stands for Vehicle Identification Number, which is a unique identification code consisting of 17 symbols that are assigned to every car, bus, truck, or trailer at the time of production. Moreover, our app not only provides information about the car, but it can also tell you if the vehicle has participated in auctions and provide you with the average price of the vehicle if such data is available. With our VIN Decoder and VIN check app, you can have all the information you need about a vehicle right at your fingertips. To ensure the VIN check works correctly, make sure your network connection is active and stable. The VIN Decoder & VIN Check app is not responsible for the accuracy of the information it publishes, including technical data, features, specifications, and indicators. Manufacturers' logos, brands, and other trademarks are the property of their respective owners. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: LIQUI MOLY at none against VIN decoder & VIN code scanner's 2. LIQUI MOLY also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). VIN decoder & VIN code scanner's advantage is update cadence (every 3 weeks vs every 13 months). On price 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
Both are free to download. VIN decoder & VIN code scanner sells 2 in-app purchases, starting at $4.99 per month. LIQUI MOLY asks for nothing beyond the download.
LIQUI MOLY ships an update every 13 months, VIN decoder & VIN code scanner every 3 weeks. The most recent releases landed on March 17, 2026 and September 16, 2026 respectively.
| Parameter | LIQUI MOLY | VIN decoder & VIN code scanner |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (112 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 112 — better |
| Update frequency | Every 13 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 812 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | LIQUI MOLY GmbH | Vitaliy Mischenko |
In-app purchases
LIQUI MOLY
No in-app purchases
VIN decoder & VIN code scanner
- Premium Access for a month$4.991 Month
- Premium Access for a year$49.991 Year
Questions
Is LIQUI MOLY free?
Is VIN decoder & VIN code scanner free?
Do LIQUI MOLY or VIN decoder & VIN code scanner have ads?
Which is updated more often, LIQUI MOLY or VIN decoder & VIN code scanner?
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