Happ+ vs OBD2 Car Scanner ELM 327 DTC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Happ+
Monitor your ECG, heart rate, and stress levels anytime, anywhere with this mobile healthcare system. It records and analyzes body signals, providing results and saving capabilities for various health indices. Data can be transmitted via email for further review.
- Interactive ECG monitor
- Real-time heart rate and stress monitoring
- Save health data up to 24 hours
- Analysis results for health indices
- Transmit vital signs via email
- Compatible with iOS devices
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“Anytime, anywhere” Monitoring of your ECG Solmitech Mobile Healthcare Systems Happ+ is your best partner for ECG, heartbeat, and stress monitoring. You can check your body signals wherever and whenever you want. - Interactive ECG monitor – see and record ECG with Solmitech’s ECG monitor (SHC-U9) - Monitor ECG, heart rate, HRV and stress levels in real time. - Monitor and save the health data for maximum 24 hours. - Patch-type, garment-type, and belt-type measuring sensors are available to monitor health signals. - Interworking with a smart phone (iOS) - Provide analysis results and saving capabilities for various health indices. - Transmit the saved data for vital signs via e-mail. Applications - Health & Leisure ∙ Walking/Running/Climbing/Cycling/In-line skating/Etc. - Hospital & Society ∙ Health club/School/Rest home/Nursing home/Etc. - Sports & Military ∙ Soccer/Marathon/Baseball/Basketball/Volleyball/Swimming/Soldier/Etc. - Refit Patch U8 and U9 devices, which work with the Happ+ App, received the class II Korea FDA certificate approval from Republic of Korea. Reference to Refit Patch products or services on the Happ+ App does not imply that such products or services are or will be available in your country/region, and such products or services may be subject to different regulations and conditions of use. - The products and measurement results provided by this App are not intended to diagnose, treat, or cure any disease. It is recommended to discuss with the medical professionals for the medical advice. - Please check with a doctor in addition to using the Happ+ App before making medical decisions. Developer Contact - www.solmitech.com - B-622, Biz Center, 17, Techno 4-ro, Yuseong-gu, Daejeon, Korea - Tel: +82-70-7558-9877
OBD2 Car Scanner ELM 327 DTC
Transform your iPhone into a comprehensive car diagnostic tool. Monitor real-time engine data, read and clear trouble codes, track performance, and manage vehicle maintenance. Offers a demo mode for exploration before hardware purchase.
- Real-time engine data dashboard
- Read and clear diagnostic trouble codes (DTCs)
- Performance testing (0-60 mph, 1/4 mile)
- Battery health monitoring
- Vehicle maintenance reminders
- Data recording and PDF export
- Demo mode for exploration
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Turn your iPhone into a powerful car diagnostic tool. OBDPro connects to your vehicle's OBD-II port via Wi-Fi or Bluetooth LE ELM327 adapters and gives you real-time access to engine data, trouble codes, performance metrics and more. LIVE DASHBOARD • Real-time RPM, speed, coolant temp, throttle, MAF, engine load, voltage and 15+ engine parameters • Beautiful analog gauges with animated needles — just like a real tachometer • 4 dashboard themes: Standard, Racing (blue), Eco (green), Sport (red) • Customizable refresh rate down to 0.2s for near real-time updates • Switch between metric and imperial units FULL DIAGNOSTICS • Read diagnostic trouble codes (DTCs) with plain-English descriptions • In-depth code details: severity, possible causes, symptoms and suggested repair • Clear check engine light with double-confirmation safety prompt • View I/M readiness monitors for emission test preparation PERFORMANCE TESTS • 0–60 mph, 0–100 km/h, 0–200 km/h, 1/4 mile, 1/8 mile and 100–0 km/h braking • Live timer, distance and max-speed tracking • Save runs, see your personal best and full test history BATTERY HEALTH • Live voltage trend with smart engine/charging/cranking diagnosis • 30-day min/max/avg voltage history • Get alerted before your battery dies MY GARAGE • Add your vehicles with brand, model, year, engine type, VIN and color • 100+ official car brand logos • Service reminders for oil, brakes, tires, filters, spark plugs and more • Track mileage and get notified when service is due DATA RECORDING & EXPORT • Record live sessions while driving (as a passenger!) • Review session statistics — min, max and average for every parameter • Export professional PDF reports to share with your mechanic WIDE ADAPTER SUPPORT • Wi-Fi ELM327 adapters • Bluetooth LE 4.0+ ELM327 adapters (Vgate, Veepeak, OBDLink and more) • Automatic adapter detection and protocol negotiation DEMO MODE • Try every feature with simulated vehicle data — no adapter needed • Perfect for exploring the app before purchasing hardware 32 LANGUAGES Available in English, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Russian, Turkish, Japanese, Korean, Chinese (Simplified), Arabic, Hindi and 17 more. FREE vs PRO Free includes: • Connect via Wi-Fi, Bluetooth LE or Demo • Live dashboard with core PIDs (RPM, speed, coolant, throttle…) at 1s refresh • Read DTCs with code title and description • 0–60 mph, 0–100 km/h and 1/4 mile performance tests • 1 saved recording session and 1 free PDF export • 1 vehicle in your garage with oil-change tracking OBDPro unlocks: • All 15+ PIDs and faster 0.2s refresh • Racing, Eco and Sport dashboard themes • Detailed DTC causes, symptoms and repair guide • Clear DTC codes (Mode 04) • Battery Health trends, alerts and 30-day history • Unlimited vehicles in My Garage • Full service reminders (brakes, tires, filters, spark plugs…) • 0–200 km/h, 1/8 mile and 100–0 km/h braking tests • Save performance runs, personal bests and history • Unlimited recording sessions and unlimited PDF exports IMPORTANT SAFETY NOTICE This app reads ECU data for informational purposes only. Do NOT operate while driving. Always park safely before using diagnostics. OBDPro is not a substitute for professional automotive inspection or repair. Compatible with all OBD-II vehicles (1996+ US, 2001+ EU). Requires an ELM327-compatible Wi-Fi or Bluetooth LE adapter (sold separately). Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage in Settings → Apple ID → Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/obd2scan/ana-sayfa/privacy-policy Contact: tr.metin.atalay@gmail.com
Screenshots
Verdict
The clearest difference is in-app purchases: Happ+ at none against OBD2 Car Scanner ELM 327 DTC's 3. Happ+ also leads on iOS requirement (12.0 vs 18.0). On price, rating, ratings volume and update cadence 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
Both are free to download. OBD2 Car Scanner ELM 327 DTC sells 3 in-app purchases, starting at $3.99 per 7 days. Happ+ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 1.0 for Happ+ against 1.0 for OBD2 Car Scanner ELM 327 DTC. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Happ+ ships an update every 4 weeks, OBD2 Car Scanner ELM 327 DTC every 3 weeks. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.
| Parameter | Happ+ | OBD2 Car Scanner ELM 327 DTC |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 1.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 27 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Solmitech Co., Ltd. | Metin Atalay |
Customer experience
Happ+
OBD2 Car Scanner ELM 327 DTC
In-app purchases
Happ+
No in-app purchases
OBD2 Car Scanner ELM 327 DTC
- Pro Weekly$3.997 Days
- Pro Monthly$6.991 Month
- Pro Annual$14.991 Year
Questions
Is Happ+ free?
Is OBD2 Car Scanner ELM 327 DTC free?
Which has better reviews, Happ+ or OBD2 Car Scanner ELM 327 DTC?
Do Happ+ or OBD2 Car Scanner ELM 327 DTC have ads?
Which is updated more often, Happ+ or OBD2 Car Scanner ELM 327 DTC?
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