Comparison

Steer vs G4R

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

Head to head
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 โ€” then explains it the way an honest mechanic would: in plain language, with no jargon and nothing to upsell you. WHAT YOU GET: โ–  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. โ–  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. โ–  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 โ€” Catalyst System Efficiency Below Threshold". โ–  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. โ–  DASHBOARD LIGHT LIBRARY Every warning light on your dashboard โ€” check engine, ABS, airbag, TPMS, oil, battery โ€” what it actually means, and how urgent it really is. โ–  MAINTENANCE THAT KNOWS YOUR CAR Service intervals based on your VIN and your real mileage, not a generic checklist. Oil changes, filters, brakes, belts. โ–  SAFETY RECALLS We check your VIN against the manufacturer recall database and tell you if your car is affected. โ–  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 โ€” scan, results, AI Mechanic โ€” 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 โ€” $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/

About

G4R

Features
Read full description

Garage Reorder (G4R) is garage order tracking for your whole fleet โ€” cars, trucks, motorcycles, boats and jet skis, even e-bikes. Track replacement items, reorder, and build a permanent on-device record of every part you order, install, and service. Add a vehicle and G4R starts it with the four most commonly forgotten replacements: windshield wipers, key fob battery, cabin air filter, and engine air filter. Add your own categories โ€” brake pads, spark plugs, anything your vehicle needs โ€” each with its own replacement interval. YOUR FLEET AT A GLANCE โ€ข Overdue, due soon, and on-order counts the moment you open the app โ€ข Color-coded status for every item and vehicle โ€ข Track as much as you want per vehicle: VIN or serial number, license plate, insurance policy and expiration, warranty coverage REORDER IN ONE TAP โ€ข Every item carries an Amazon search link matched to your vehicle's year, make, and model โ€ข Track the whole order: link opened, ordered, delivered, installed โ€ข Marking an item installed resets its replacement countdown automatically A RUNNING RECORD OF YOUR GARAGE โ€ข Order history per vehicle and per item โ€” every install is saved with its dates, product, and your notes โ€ข Service records with who did the work: a shop, the dealership, the oil-change place, the auto parts store, or you โ€ข Export order history and service records as print-ready PDF tables (AirPrint supported) โ€ข Rate parts on cost and quality in your notes โ€” they're saved with each record REMINDERS AND INSTALL HELP โ€ข Local notifications when a replacement comes due โ€ข Install videos, owner's-manual searches, and step-by-step resources per item โ€ข Attach photos to vehicles and items PRIVATE BY DESIGN โ€ข Sign in with Apple or Google โ€” no separate password to manage โ€ข All data stays on your device; no server account, no analytics, no tracking โ€ข Optional Face ID protection The free Regular plan supports up to 3 vehicles and 6 items per vehicle. As an Amazon Associate, 4DAT LLC earns from qualifying purchases made through links in the app. G4R does not display Amazon prices, ratings, or reviews, and search links are not fitment guarantees โ€” always confirm part fitment for your specific vehicle before ordering. Terms of Use: https://garage4reorder.com/terms Privacy Policy: https://garage4reorder.com/privacy

Screenshots

Steer4 screens
G4R4 screens

Verdict

The call

The clearest difference is update cadence: G4R at every 4 days against Steer's every 3 weeks. G4R also leads on iOS requirement (18.0 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Steer sells 4 in-app purchases, starting at $9.99 per month and G4R sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Steer ships an update every 3 weeks, G4R every 4 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard2 real differences ยท 6 level
Steer versus G4R: the parameters behind the verdict, then further details
ParameterSteerG4R
PriceFreeFree
Positive reviews26.7% of reviewsโ€”
Update frequencyEvery 3 weeksEvery 4 days โ€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumโ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.118.0 โ€” better
Further details โ€” not scored
Size27 MB1 MB
Age rating4+4+
DeveloperSmarters Engineered4DAT LLC

In-app purchases

4 purchases

Steer

Subscriptions4
  • OBD2 Pro$9.991 Month
  • OBD2 Pro$19.991 Year
  • Steer Plus14 Days trial$99.001 Year
Show 1 more
  • Steer Plus$99.001 Year
1 purchases

G4R

Subscriptions1
  • Garage Reorder Premium$3.991 Month

Questions

Is Steer free?
Steer is free to download, with in-app purchases available.
Is G4R free?
G4R is free to download, with in-app purchases available.
Do Steer or G4R have ads?
Neither Steer nor G4R shows ads.
Which is updated more often, Steer or G4R?
Steer ships an update every 3 weeks, and G4R every 4 days. Most recently, Steer was updated on November 3, 2026 and G4R on October 28, 2026.

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