Steer vs RC Designer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
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.
- Universal OBD2 scanner compatibility
- Read and erase fault codes
- Real-time performance metrics
- Acceleration and performance testing
- Emission compliance checks
- Supports various car brands
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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/
RC Designer
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Precision Engineering on the go. RC Designer is an advanced mobile tool built specifically for structural engineers, consultants, and students working within the Hong Kong construction industry. Designed strictly according to the Code of Practice for Structural Use of Concrete 2013 (HK COP 2013), this app streamlines the complex process of reinforced concrete member design. Whether you are performing quick spot-checks on site or batch-processing an entire structural model, RC Designer brings desktop-level analytical power to your mobile device. WHAT'S NEW: ETABS Batch Integration: Seamlessly import ETABS analysis data (via Excel .xlsx) to instantly batch-check hundreds of beams and columns. Interactive 3D Viewer: Visualize your imported structural model directly on your device. Tap any member in 3D to instantly view its detailed design calculations. Professional PDF Reports: Generate comprehensive, step-by-step PDF calculation reports for individual members or export a complete batch summary with 3D model screenshots to share with your team. Manual Rebar Overrides: Edit rebar and shear link arrangements on the fly, and watch the Utilization Ratios (UR) and pass/fail statuses update instantly across your batch tables. COMPREHENSIVE BEAM DESIGN: Flexure Design: Supports both Singly and Doubly reinforced sections. Automatic Detailing: Intelligent rebar arrangement based on section width or manual override. Shear Links: Calculate required links (S.S, D.S, T.S, or Multi-leg) based on V/vc limits. Deflection Check: Real-time Span/Effective Depth ratio verification with precise modification factors. Detailed Traceability: View full calculation steps with direct references to specific HK COP 2013 Clauses. ADVANCED COLUMN DESIGN: Biaxial Bending: Interactive M-N Interaction Curves for both X and Y axes. Slenderness Effects: Automatic calculation of additional moments based on effective height. Visual Detailing: Dynamic, scaled cross-section sketches showing precise rebar and link layouts. Shape Support: Full support for both Rectangular and Circular columns. Multi-Load Case Support: Effortlessly handle and envelope multiple load cases from ETABS outputs to find the governing design. Disclaimer: This app is intended for use by qualified structural engineers for preliminary design and checking purposes. All final designs must be verified against official code documents and independent calculations.
Screenshots
Verdict
The clearest difference is price: Steer at Free against RC Designer's $7.99. RC Designer's advantage is in-app purchases (none vs 4) and iOS requirement (15.0 vs 26.1). On update cadence, ads 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
Steer is free to download; RC Designer costs $7.99 up front. Steer sells 4 in-app purchases, starting at $9.99 per month. RC Designer asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Steer | RC Designer |
|---|---|---|
| Price | Free โ better | $7.99 |
| Positive reviews | 26.7% of reviews | โ |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Freemium | โ |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 26.1 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 27 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Smarters Engineered | Ka Wai Miu |
In-app purchases
Steer
- OBD2 Pro$9.991 Month
- OBD2 Pro$19.991 Year
- Steer Plus14 Days trial$99.001 Year
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- Steer Plus$99.001 Year
RC Designer
No in-app purchases
Questions
Is Steer free?
Is RC Designer free?
Do Steer or RC Designer have ads?
Which is updated more often, Steer or RC Designer?
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