Comparison

E10 Fuel Compatibility Check vs OpenOBD

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

Head to head
About

E10 Fuel Compatibility Check

Features
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Will your car or motorcycle run safely on E10? Get a clear answer in seconds — before you pull up to the pump. E10 is gasoline blended with up to 10% ethanol, and it is replacing regular unleaded at more and more stations. Most modern engines handle it fine, but many older vehicles — especially carbureted ones — do not, and ethanol can slowly damage rubber seals and fuel lines. This app puts manufacturer recommendations for more than 1,200 car and motorcycle models across 80+ brands in your pocket, so you never have to guess. WHAT YOU GET - Instant E10 verdict for 1,200+ car and motorcycle models - Three plain-language ratings: Compatible, Use with caution, Not compatible - Practical advice for every result, not just a yes or no - Fast search and filtering by vehicle type and brand - A Saved list so your own vehicles are one tap away - A Learn section covering what E10 is, why it matters, and common FAQs PERFECT FOR - Drivers unsure whether new E10 pumps are safe for their car - Motorcycle and scooter owners protecting older engines - Owners of classic or carbureted vehicles worried about ethanol - Anyone who wants a quick second opinion before filling up WHY NOT JUST SEARCH ONLINE? Web results are scattered, contradictory, and rarely specific to your exact model. This app compiles the guidance into one consistent database with a clear rating and real advice — and it works fully offline, so you get your answer even at a remote station with no signal. No account, no sign-up. PRIVACY The entire vehicle database ships inside the app. There is no login, no tracking, and no collection of personal data. Your saved vehicles stay on your device. FULL ACCESS E10 Check is free to use. E10 Check Pro is an optional upgrade that supports development and unlocks unlimited lookups, unlimited saved vehicles, and the latest data updates: - Weekly plan - Yearly plan - Lifetime (one-time purchase) Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends; manage or cancel anytime in your App Store account settings. The lifetime option is a single one-time payment. Check your vehicle now and fuel up with confidence. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

About

OpenOBD

Transform your iPhone into a real-time car dashboard. Connect an OBD2 adapter to monitor live engine data, track your trips with GPS, and diagnose fault codes with clear explanations. Explore all features in demo mode without hardware.

Highlights
  • Live engine data monitoring
  • Real-time speed, RPM, temperature gauges
  • Trip logging with GPS mapping
  • Read and clear diagnostic trouble codes (DTCs)
  • Vehicle information display
  • Demo mode for exploration
Features
Read full description

OpenOBD turns your iPhone into a real-time car dashboard. Connect any ELM327 OBD2 adapter (Bluetooth or Wi-Fi) and see what your car is really doing — live. LIVE ENGINE DATA • Speed, RPM, coolant temperature, intake, throttle, engine load, battery voltage and more • 50+ sensors with gauges you pick and reorder yourself • Instant and average fuel consumption • Tap any gauge for a live 60-second chart CARPLAY • A live 8-tile dashboard on your car's built-in screen • Start and stop trip recording without touching your phone DIAGNOSTICS • Read and clear fault codes (DTCs) with plain-language explanations • For common codes: what it means, how urgent it is, what to do next • Emissions readiness monitors before an inspection • Freeze frame — the sensor values from the moment the fault occurred • Vehicle info: VIN, fuel type, supported sensors TRIP LOGGING • Automatically record your drives with the GPS route on a map • Keeps recording in the background, even with the screen locked • Distance, duration, speed and fuel for every trip • Export any trip as CSV or GPX CAR HEALTH TOOLS • Battery and charging test: state of charge, alternator and cranking check • Diesel and DPF pre-check from standard, read-only OBD evidence • Used car check before you buy • Measure 0-100 km/h acceleration and 100-0 km/h braking • Live alerts for overheating and low voltage, in plain language BUILT FOR DRIVERS • Beautiful dark interface designed for the car • Over 40 languages, metric and imperial units • Works with affordable ELM327 adapters — no subscription, no account, no ads • Your data stays on your phone TRY IT WITHOUT HARDWARE • Tap Connect, then Demo Mode, to explore every feature with simulated live data OpenOBD is not affiliated with any car manufacturer. An OBD2 adapter (sold separately) is required to read data from your vehicle. Most petrol cars built after 2001 and diesels after 2004 are supported. The battery, diesel and used-car results are read-only pre-checks and do not replace a professional inspection.

Screenshots

E10 Fuel Compatibility Check4 screens
OpenOBD4 screens

Verdict

The call

E10 Fuel Compatibility Check and OpenOBD are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. E10 Fuel Compatibility Check sells 3 in-app purchases, starting at $2.99 per 7 days and OpenOBD sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
E10 Fuel Compatibility Check versus OpenOBD: the parameters behind the verdict, then further details
ParameterE10 Fuel Compatibility CheckOpenOBD
PriceFreeFree
Rating—4.8 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size9 MB80 MB
Age rating4+4+
DeveloperPhuc PhamOsman Cengeri

In-app purchases

3 purchases

E10 Fuel Compatibility Check

Subscriptions2
  • Octane Ratings – Weekly$2.997 Days
  • Engine Safety – Yearly$14.991 Year
One-time1
  • Gasoline Guide, Pay Once$29.99
1 purchases

OpenOBD

One-time1
  • Founder Pack$4.99

Questions

Is E10 Fuel Compatibility Check free?
E10 Fuel Compatibility Check is free to download, with in-app purchases available.
Is OpenOBD free?
OpenOBD is free to download, with in-app purchases available.
Do E10 Fuel Compatibility Check or OpenOBD have ads?
Neither E10 Fuel Compatibility Check nor OpenOBD shows ads.

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