Comparison

Shellie vs OBDify

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

Head to head
About

Shellie

This utility app assists RV owners in leveling their vehicles. It provides a simple interface to ensure your RV is perfectly balanced for comfort and stability.

Highlights
  • RV leveling assistance
  • Vehicle balancing
  • Simple interface
  • Designed for Winnebago Travato
Features
Read full description

Winnebago Travato Leveling Tool

About

OBDify

Features
Read full description

OBDify - Understand Your Car. Drive With Confidence. OBDify turns your car data into clear, actionable insights - from diagnostics and live data to performance tracking, trips, and expenses. Whether you are a daily driver or a car enthusiast, OBDify helps you stay in control of your vehicle - with or without an OBD2 scanner. SMART DIAGNOSTICS AND VEHICLE HEALTH Scan and clear trouble codes and understand what they actually mean. - Read and clear DTCs from multiple ECUs - Plain-language explanations - Severity levels and repair cost estimates - Real-time battery voltage and health score REAL-TIME DATA (OBD2 REQUIRED) See what your car is doing right now. - Live data: speed, RPM, coolant temperature, throttle, and more - Smooth gauges and detailed charts - Monitor performance and detect issues early PERFORMANCE TRACKING Measure your car's real performance. - 0-100 km/h, 0-60 mph, and quarter mile times - GPS-based acceleration tracking - Run history with personal bests - Estimated wheel horsepower TRIPS AND DRIVING HISTORY Track every journey automatically. - Distance, duration, and average speed - Route history and trip insights GARAGE AND VEHICLE MANAGEMENT Keep everything about your car in one place. - Manage multiple vehicles - Service reminders (by time or mileage) - Fuel logs, expenses, and documents - Insurance and registration expiry alerts VIN DECODER Instantly unlock your car's full specifications. - Scan or enter any 17-character VIN - View build data, engine details, and equipment FUEL AND COST TRACKING Understand how much your car really costs. - Fuel consumption tracking - Trip cost estimation - CO2 emission insights WORKS WITH OR WITHOUT OBD2 Start using OBDify instantly - no hardware needed. - Core features work without an adapter - Connect an ELM327 Bluetooth or WiFi OBD2 scanner to unlock full diagnostics and live data BUILT FOR DRIVERS Clean, modern interface designed for everyday use. - Dark mode optimized for driving - Home screen widget for quick vehicle status - Available in multiple languages COMPATIBILITY - US: 1996+ vehicles - Europe: 2001+ petrol, 2004+ diesel - Supports standard ELM327 Bluetooth and WiFi adapters WHY OBDIFY Most car apps either overwhelm you with raw data or limit what you can do without expensive tools. OBDify is built differently - it gives you the right information, at the right time, in a way that actually makes sense. Whether you are checking a warning light, tracking performance, or managing your vehicle expenses, everything is designed to be simple, fast, and useful. FOR EVERY TYPE OF DRIVER OBDify adapts to how you use your car. - Daily drivers who want to avoid unexpected issues - Car owners tracking maintenance and costs - Enthusiasts measuring performance and runs - Anyone who wants more control without complexity NO GUESSWORK Stop searching forums or trying to decode technical terms. OBDify translates your car data into clear insights so you can understand what is happening and what to do next. PRIVACY AND CONTROL Your data stays yours. - No unnecessary data collection - Full control over your vehicles and history - Secure storage of your information GET STARTED IN SECONDS Download OBDify and start using core features instantly - no setup, no hardware required. Upgrade anytime by connecting an OBD2 adapter to unlock full diagnostics and live data. SUBSCRIPTION TERMS Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://bubble-iridium-4e8.notion.site/Privacy-Policy-for-OBDify-3416bf91cdf4803b85b7f95a14b6e1cd

Screenshots

Shellie2 screens
OBDify4 screens

Verdict

The call

The clearest difference is in-app purchases: Shellie at none against OBDify's 4. On price, update cadence, ads 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. OBDify sells 4 in-app purchases, starting at $4.99 per 7 days. Shellie asks for nothing beyond the download.

UpkeepUpdate frequency

Shellie ships an update every 2 days, OBDify every 4 days. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 8 level
Shellie versus OBDify: the parameters behind the verdict, then further details
ParameterShellieOBDify
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 days — betterEvery 4 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.218.2
Further details — not scored
Size3 MB19 MB
Age rating4+4+
DeveloperPeter WalkerOleksandr Zhuryk

In-app purchases

None

Shellie

No in-app purchases

4 purchases

OBDify

Subscriptions3
  • OBDify Premium$4.997 Days
  • OBDify Pro3 Days trial$9.991 Month
  • OBDify Premium$59.991 Year
One-time1
  • Lifetime Diagnostics$19.99

Questions

Is Shellie free?
Shellie is free to download, with no in-app purchases.
Is OBDify free?
OBDify is free to download, with in-app purchases available.
Do Shellie or OBDify have ads?
Neither Shellie nor OBDify shows ads.
Which is updated more often, Shellie or OBDify?
Shellie ships an update every 2 days, and OBDify every 4 days. Most recently, Shellie was updated on September 30, 2026 and OBDify on October 9, 2026.

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