Comparison

hobDrive vs ChkOBD OBD2 Analyzer

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

Head to head
About

hobDrive

This intelligent trip computer and OBD2 diagnostic software uses your vehicle adapter and GPS to calculate trip information, monitor engine diagnostics, and track performance metrics. It offers detailed fuel efficiency calculations and trip planning features for a comprehensive driving analysis.

Highlights
  • OBD2 PIDs and custom sensor support
  • Enhanced engine diagnostics and code explanation
  • Detailed trip computer with MPG calculations
  • Performance tools (0-100, braking, HP, torque)
  • Hybrid vehicle specific features
  • Trip planning and fueling records
  • GPS tracking and map overlay
Features
Read full description

Turn a compatible ELM327 adapter into a live trip computer for your car. hobDrive brings vehicle data, OBD2 diagnostics, trip history, fuel costs, and maintenance planning together in one app. Connect through Bluetooth LE or Wi-Fi, use detailed dashboards on your iPhone, and view selected live values on your vehicle's CarPlay display. Before purchasing, use the included 30-day evaluation period to confirm compatibility with your vehicle, phone, and adapter. DRIVE WITH USEFUL DATA - Monitor available values such as speed, RPM, coolant temperature, battery voltage, fuel level, and fuel trims - Track fuel consumption, economy, idling, distance, and time by trip, day, week, since fueling, or manual Trip A/B period - Estimate remaining range and driving time from the fuel left in the tank - Keep trip, fuel, range, and selected sensor values visible through CarPlay UNDERSTAND VEHICLE PROBLEMS - Read OBD2 trouble codes and monitor new engine-code warnings during a trip - See code descriptions and use the AI assistant to help interpret a code or vehicle symptom - Receive warnings for conditions such as overheating or unusual fuel trims - Review sensor values in charts instead of relying on a single warning light KEEP A USEFUL VEHICLE HISTORY - Record fuelings, fuel prices, and vehicle expenses - Review trip statistics and offline or cloud analytics across different periods - Create service intervals and reminders for scheduled or personal maintenance - Configure dashboards, sensor views, themes, and community layouts VEHICLE AND PROTOCOL COVERAGE hobDrive supports standard OBD2 PIDs and extended sensors for selected Toyota, Toyota Prius, Ford, Ford Escape Hybrid, Mazda, Chevrolet, and Nissan vehicles. It also supports selected non-OBD2 protocols, including Delphi MR240, Delphi MT20U, Bosch, VAZ Yanvar 5/7, Micas, Itelma, JDM Nissan and Toyota, and Siemens systems used by some Alfa Romeo, Fiat, and Samand vehicles. Support is also available for selected hybrid, electric, diesel, and dual-fuel vehicles. The exact sensors and functions depend on the vehicle, ECU, adapter, and connection configuration. ADDITIONAL TOOLS - GPS- or ELM327-based acceleration, quarter-mile, and braking measurements - Estimated engine power and torque - Fuel-consumption calculations using MAF, MAP, injector timing, or ECU fuel-flow data when available TRIAL AND COMPATIBILITY HobDrive provides a 30-day evaluation period. Most features are available during the trial; reading and clearing manufacturer-specific protocol codes is excluded. A purchase is required after the evaluation period. Many vehicles need a specific connection profile. If hobDrive cannot connect to your ELM327 adapter, contact support so we can help check the configuration. GPS NOTICE hobDrive can use GPS to record trip tracks. Continuous background GPS use can reduce battery life, so a charger is recommended for longer drives. More information: https://hobdrive.com/ Support: support@hobdrive.com

About

ChkOBD OBD2 Analyzer

Connect your iPhone or iPad to your car's engine to view vital data. Access basic engine values for free, with in-app purchases for advanced diagnostics, smog check readiness, VIN analysis, and error decoding.

Highlights
  • View engine values
  • In-app purchase for advanced data
  • Smog Check Assistant
  • VIN Analyzer
  • Error Decoder and Reset
  • Bluetooth adapter compatibility check
Features
Read full description

ChkOBD let you connect your iPhone and iPad to your Car and view the most important Engine values in a very intuitive user interface in an appealing user-friendly way. ChkOBD connects wirelessly to an ELM237 enabled OBDII - Bluetooth adapter which is readily available from many 3rd party vendors. From this free application that let you have access to the basic “Engine Values”, you will have In-App purchase to access additional information such as : . Advanced Engine Values, an extended choice of sensors available on your car, that you can select and monitor. The available Engine Value from your car, are all listed in a “grey” mode, so, you will have no surprise of what you will get (or not get !) after the In App purchase . Smog Check Assistant, to know if your car will pass the next Smog Check at the state official station, or the App will let you know what needs to be fixed, before driving there, . VIN Analyzer, will let you know what information is in the “government file” from your car, including date and place of manufacturing, . Error Decoder and Reset, to know what is the current error that is in the Memory of the computer of your car and let you have a way to try to reset this error (Normally, it comes back on, if the cause of the error is not mechanically fixed). This is an error scan that is going through about 4'000 possible errors. Usually all these information will be read from all car that have been sold in the USA after 2005. The fact that these applications are offered from inside a free app, in our side, from this free app, we are able to check before any of your purchase, that your car and your Bluetooth adapter will be 100% compatible with these applications. We are using this technology to try to provide to our customers the best possible satisfaction.

Screenshots

hobDrive4 screens
ChkOBD OBD2 Analyzer4 screens

Verdict

The call

The clearest difference is iOS requirement: ChkOBD OBD2 Analyzer at 13.0 against hobDrive's 15.0. On price, update cadence, ads and in-app purchases 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. hobDrive sells 4 one-off in-app purchases and ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 29, 2026 and October 13, 2026 respectively.

Scorecard1 real difference · 9 level
hobDrive versus ChkOBD OBD2 Analyzer: the parameters behind the verdict, then further details
ParameterhobDriveChkOBD OBD2 Analyzer
PriceFreeFree
Rating—3.0 (4 ratings) — better
Positive reviews28.1% of reviews—
Number of ratings—4 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size148 MB63 MB
Age rating4+4+
DeveloperRID OOOCheck On-Board Diagnostics LLC

Customer experience

hobDrive

Written reviews57 reviews
Positive28.1%
Neutral8.8%
Negative63.2%

ChkOBD OBD2 Analyzer

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

4 purchases

hobDrive

One-time4
  • Lifetime license (existing)$7.99
  • Lifetime license$12.99
  • Lifetime License / existing$12.99
Show 1 more
  • Lifetime License$19.99
4 purchases

ChkOBD OBD2 Analyzer

Subscriptions1
  • Smog Check Assistant$4.991 Month
One-time3
  • VIN Analyzer$1.99
  • Error Analyzer$2.99
  • Advance Engine Values$4.99

Questions

Is hobDrive free?
hobDrive is free to download, with in-app purchases available.
Is ChkOBD OBD2 Analyzer free?
ChkOBD OBD2 Analyzer is free to download, with in-app purchases available.
Do hobDrive or ChkOBD OBD2 Analyzer have ads?
Neither hobDrive nor ChkOBD OBD2 Analyzer shows ads.
Which is updated more often, hobDrive or ChkOBD OBD2 Analyzer?
hobDrive ships an update every 3 months, and ChkOBD OBD2 Analyzer every 3 months. Most recently, hobDrive was updated on October 29, 2026 and ChkOBD OBD2 Analyzer on October 13, 2026.

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