Comparison

HT200 vs Steer

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

Head to head
About

HT200

Access all OBDII functions for free and get one free vehicle software with your initial purchase. This app supports up to 19 specific functions like Oil Reset and EPB, with options to expand coverage via in-app purchases. It also features auto VIN identification and generates shareable repair reports.

Highlights
  • All OBDII functions free
  • One free vehicle software
  • Supports 19 specific functions
  • In-app purchase for expanded coverage
  • Auto VIN identification
  • Generate repair reports
  • Record of tested vehicles
Features
Read full description

1. All OBDII functions are available and free 2. One free vehicle’s software with the initial purchase 3. Support up to 19 specific functions, including Oil Reset, EPB, BMS, SAS, DPF, TPMS, IMMO, etc. 4. Expand coverage with additional in-app purchase 5. Auto VIN technology identifies vehicles automatically 6. Generate repair reports of tested vehicles and support PDF format for easy sharing and printing 7. Keep records of vehicles tested previously

About

Steer

Transform your smartphone into a powerful OBD2 diagnostic tool. Read and clear fault codes, monitor real-time performance metrics, and test your vehicle's acceleration and emissions. Compatible with a wide range of car brands and OBD2 scanners.

Highlights
  • Universal OBD2 scanner compatibility
  • Read and erase fault codes
  • Real-time performance metrics
  • Acceleration and performance testing
  • Emission compliance checks
  • Supports various car brands
Features
Read full description

Your car has been trying to tell you something. Steer translates it. Plug the Steer sensor into the port under your steering wheel and the app reads what your car already knows — then explains it the way an honest mechanic would: in plain language, with no jargon and nothing to upsell you. WHAT YOU GET: ■ AI MECHANIC Ask anything about your car and get a straight answer. Send a photo of a warning light, a leak on the driveway or a part you don't recognize, or just describe the noise it makes. It knows your exact car and your latest scan. ■ ONE NUMBER, 0 TO 100 Your Steer Score answers "how is my car right now?". No trouble codes to look up, no tables to read. Watch it move over time. ■ PROBLEMS IN PLAIN LANGUAGE Every issue comes with what it means, whether it is safe to keep driving, and what the repair usually costs. Not "P0420 — Catalyst System Efficiency Below Threshold". ■ DEEP SCAN 21 systems and 126 live parameters, across every module your car will talk to. Start it, lock your phone, and get a notification when it is done. ■ DASHBOARD LIGHT LIBRARY Every warning light on your dashboard — check engine, ABS, airbag, TPMS, oil, battery — what it actually means, and how urgent it really is. ■ MAINTENANCE THAT KNOWS YOUR CAR Service intervals based on your VIN and your real mileage, not a generic checklist. Oil changes, filters, brakes, belts. ■ SAFETY RECALLS We check your VIN against the manufacturer recall database and tell you if your car is affected. ■ EVERY OBD2 CAR SINCE 1996 80 makes and thousands of models, 1996 to 2026. TRY IT BEFORE YOU BUY Open the app and tap "Try a real scan". You get the whole experience on a demo car — scan, results, AI Mechanic — with no sensor, no account and no card. WHAT YOU NEED Steer works with the Steer OBD2 sensor, available at steer.so. It is not compatible with third-party adapters. MEMBERSHIP Free forever: live codes, battery alerts and basic diagnosis. Steer Plus unlocks the unlimited AI Mechanic, full explanations for every issue, predictive maintenance and every car in the household — $99/year with a 14-day free trial, or $14.99/month. Terms of Use: https://steer.so/terms Privacy Policy: https://steer.so/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HT2004 screens
Steer4 screens

Verdict

The call

The clearest difference is review sentiment: Steer at 40% against HT200's 15%. HT200's advantage is iOS requirement (12.0 vs 26.1). 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. HT200 sells 14 one-off in-app purchases and Steer sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HT200 ships an update every 6 weeks, Steer every 2 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard2 real differences · 8 level
HT200 versus Steer: the parameters behind the verdict, then further details
ParameterHT200Steer
PriceFreeFree
Rating1.9 (303 ratings) — better—
Positive reviews15.4% of reviews40.0% of reviews — better
Number of ratings303 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better26.1
Further details — not scored
Size106 MB26 MB
Age rating4+4+
DeveloperAutel Intelligent Technology Co., Ltd.Smarters Engineered

Customer experience

HT200

All ratings303 ratings
Positive18.5%
Neutral7.9%
Negative73.6%
Written reviews91 reviews
Positive15.4%
Neutral7.7%
Negative76.9%

Steer

Written reviews10 reviews
Positive40.0%
Neutral10.0%
Negative50.0%

Bugs and requests

HT200

Reported bugs

4 issues
  • App crashes on launch
  • Login/registration issues
  • Bluetooth sync problems
  • Compatibility issues with newer devices

Requested features

4 requests
  • Update GM key fob programming
  • Expand vehicle compatibility
  • Improve Bluetooth connectivity
  • Add native iPad/Mac support

Steer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

14 purchases

HT200

One-time14
  • Hyundai for one year$21.99
  • JEEP for one year$21.99
  • Dodge for one year$21.99
Show 11 more
  • Chrysler for one year$21.99
  • Honda for one year$21.99
  • GM for one year$21.99
  • Nissan for one year$21.99
  • VW for one year$21.99
  • Ford for one year$21.99
  • Bmw for one year$21.99
  • Toyota for one year$21.99
  • Audi for one year$21.99
  • Kia for one year$21.99
  • Benz for one year$21.99
2 purchases

Steer

Subscriptions2
  • OBD2 Pro$9.991 Month
  • OBD2 Pro$19.991 Year

Questions

Is HT200 free?
HT200 is free to download, with in-app purchases available.
Is Steer free?
Steer is free to download, with in-app purchases available.
Do HT200 or Steer have ads?
Neither HT200 nor Steer shows ads.
Which is updated more often, HT200 or Steer?
HT200 ships an update every 6 weeks, and Steer every 2 months. Most recently, HT200 was updated on October 24, 2026 and Steer on October 20, 2026.

Other comparisons