OBDocker vs Contaxs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBDocker
This app acts as a professional OBD2 car scanner, enabling users to diagnose, service, and customize their vehicles. It offers comprehensive diagnostic modes, real-time data monitoring, and various service functions like oil resets and battery registration.
- Triple-mode diagnostics (Full-Systems, Multi-Systems, Quick Scan)
- Triple-mode live data monitoring (Health, Engine, Dash)
- Full-cycle service functions (Emissions Pre-Check, Control Tests, Oil Reset, Battery Registration)
- One-click car setting adjustments and retrofits
- Supports a wide range of car brands and models
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Crafted with user-friendliness and power in mind, OBDocker is a professional OBD2 car scanner app that empowers you to diagnose, service, and customize your vehicles with ease and precision. ************************* KEY FEATURES → Triple-Mode Diagnostics ○ Full-Systems Diagnose: One-Click OE-Level full-systems diagnostics. ○ Multi-Systems Diagnose: Scan multiple systems through ECUs filtering such as TMS, SRS, ABS, TCM, BCM and many more. ○ Quick Scan: Swiftly read and clear engine fault codes to maintain a smooth drive. → Triple-Mode Live Data ○ Health Monitor: Track every systems performance by diving into real-time parameters. ○ Engine Monitor: Monitor your engine's performance. ○ Dash Monitor: Visualize your vehicle's metrics in real-time. → Full-Cycle Service ○ Emissions Pre-Check: Test your emissions and pass with confidence before your official check. ○ Control Tests: Perform EVAP Leak Test, DPF and Inducement System Reinitialization. ○ Oil Reset: Easily reset oil change reminders and maintenance lights to keep your car's records up to date. ○ Battery Registration: Register the battery replacement to notify the battery management. → On-Click Modification ○ Adjustments: Adjust different car settings and customize them by one-click. ○ Retrofits: Easily adapt additional vehicle parts after installation. ************************* OBD ADAPTERS OBDocker requires a compatible OBD adapter to work. We recommend the following for the best experience: - High Performance: Vlinker Series, OBDLink Series, MotorSure OBD Tool, Carista EVO. - Middle Performance: All genuine adapters compatible with ELM327 / ELM329, including Veepeak Series, Vgate iCar Series, UniCarScan, NEXAS, Carista, Rodoil ScanX, and more. - Low Performance (Not Recommended): Cheep Chinese clones ELM. ************************* SUPPORTED CARS OBDocker is compatible with a wide range of vehicles, covering both standard and advanced modes: - Standard Mode: Universal compatibility with OBD2 / OBD-II or EOBD vehicles worldwide. - Advanced Mode: Toyota, Lexus, Nissan, infiniti, Honda, Acura, Hyundai, Kia, Volkswagen, Audi, Skoda, SEAT, Mercedes-Benz, BMW, Mini, Porsche, Ford, Lincoln, Chevrolet, Cadillac, GMC, Buick. And still working really hard to add more… ************************* PLANS: OBDocker offers a free trial for full feature access. To unlock unlimited potential, choose from our Pro or Pro Max subscriptions. NOTE: Vehicle ECUs vary in the amount of sensors supported. This app can’t show you something, that is not provided by your car. Terms and Conditions: https://www.obdocker.com/terms-and-coditions Privacy Policy: https://www.obdocker.com/privacy-policy Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Contaxs
Organize your iPhone contacts with this comprehensive toolkit. It intelligently finds and merges duplicates, cleans up messy names, and provides reliable backup and restore options. Take full control of your address book with advanced management features.
- Smart duplicate consolidation
- Apple Intelligence name cleanup
- Cross-account duplicate detection
- Precision contact merging
- Reliable backup and restore
- Account and group management
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Messy contacts? Duplicates scattered across accounts? Names full of emojis, symbols, and typos? Clean and organize everything in minutes with Contaxs — the professional, all-in-one contacts toolkit for iPhone. One-time purchase. Yours forever. No subscription. No data leaves your device. Complete privacy. Smart Consolidator A guided wizard that deep-cleans your entire address book across all accounts (iCloud, Google, Exchange, and local): • Scans everything at once to find empty contacts, duplicates, and issues • Merges duplicates with precise field-by-field control and live preview • Clear before-and-after summary before any changes • Automatic backups before and after every cleanup Apple Intelligence Name Fixer Powered by Apple Intelligence — the smartest name cleanup available: • Instantly detects emojis, weird symbols, numbers, and odd characters • Suggests clean, professional name formats • Review and approve suggestions individually or batch-process dozens at once Cross-Account Duplicate Finder Finds hidden duplicates others miss: • Matches by phone number, email, or name — even across different accounts • Color-coded view shows which contact belongs to which account • Smart filters: same-account, cross-account, or exact matches Precision Contact Merger • Pick exactly which fields to keep (name, phones, emails, photo, address, birthday, organization, social profiles, and more) • Clean merging of multiple numbers and emails with proper labels • Live preview before saving Reliable Backup & Restore Never lose your contacts: • Automatic backups saved to iCloud Drive • Export as vCard (.vcf) or CSV with full field support • Flexible restore options: Insert All, Replace All, Insert New Only, or Smart Sync • Easy import of vCard files Account & Group Management Full control over your address book: • View and manage contacts by account • Create, rename, and organize custom groups • Move contacts between accounts and groups • Rename account labels for clarity Powerful Contacts Browser • Fast search and sorting (by name, phone, email, or duplicate count) • Bulk actions on multiple contacts • Copy formatted phone or email lists • Quick export or sharing Why Choose Contaxs • One-time purchase — Every feature included, no subscriptions or hidden fees • 100% Private — All processing happens on your device. No servers, no tracking • Built for Latest iOS — Modern design with native Apple frameworks • True Cross-Account Power — Fixes duplicates across iCloud, Google, Exchange and more • Safe by Design — Automatic backups + full previews before any change Available in English, Spanish, Japanese, and Portuguese. Take back control of your address book — clean, organized, and professional. Download Contaxs today.
Screenshots
Verdict
The clearest difference is review sentiment: Contaxs at 100% against OBDocker's 47%. Contaxs also leads on in-app purchases (none vs 7) and update cadence (every 2 days vs fortnightly). OBDocker's advantage is price (Free vs $9.99) and iOS requirement (13.0 vs 26.1). On ads and device support 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
OBDocker is free to download; Contaxs costs $9.99 up front. OBDocker sells 7 in-app purchases, starting at $2.99 per month. Contaxs asks for nothing beyond the download.
OBDocker ships an update fortnightly, Contaxs every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | OBDocker | Contaxs |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 3.9 (17 ratings) — better | — |
| Positive reviews | 46.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 17 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 238 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Motorsure. Inc | Elysoft |
Customer experience
OBDocker
Contaxs
In-app purchases
OBDocker
- OBD Pro (Monthly)$2.991 Month
- OBD Pro Max (Monthly)$7.991 Month
- OBD2 Pro (6 Months)$14.996 Months
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- OBD Pro (Annual)7 Days trial$17.991 Year
- Mechanic Access (Quarterly)$19.993 Months
- OBD Pro Max (Annual)7 Days trial$47.991 Year
- OBD Pro Max (Permanent)$119.99
Contaxs
No in-app purchases









