MAXOBD vs ServiceVault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MAXOBD
This utility app allows car owners to detect vehicle faults by connecting to standard OBD protocol devices. It enables users to read trouble codes, view real-time data, and access performance parameters, with enhanced features when using specific hardware. The goal is to simplify vehicle management and early problem detection.
- Vehicle fault detection
- Connects with standard OBD devices
- Read trouble codes
- View real-time data
- Access performance parameters
- Clear trouble codes (with specific hardware)
Read full descriptionHide full description
This MAXOBD app is designed for all car owners, providing convenient vehicle fault detection services. It supports connection with standard OBD protocol devices, allowing users to perform common OBD scans and quickly check the health of their vehicles. By connecting to the OBD device, users can easily read the vehicle’s trouble codes, view real-time data, and access various performance parameters. In particular, if users connect a Konnwei device, they can enjoy more advanced features, including scanning more fault information and clearing trouble codes. This helps car owners not only identify potential vehicle issues but also clear trouble codes and restore the vehicle to normal operation. The goal of this app is to make it easier for every car owner to manage their vehicle, detect problems early, avoid costly repairs, and ensure the vehicle is always in the best running condition. Whether for regular health checks or quick diagnostics when a fault occurs, this app will be a reliable assistant for your car care
ServiceVault
Read full descriptionHide full description
ServiceVault is a maintenance log that stays on your phone. No account, no cloud sync, no subscription — your service history lives in one place you actually own, and works the same with no signal as it does with five bars. TRACK YOUR WHOLE GARAGE • Every vehicle, grouped by where you keep them • Full service history — cost, shop, parts, receipts, notes • Maintenance reminders that actually know the difference between "OK," "coming up," and "overdue" • Parts & supplies inventory, linked to the service they went into VIN DECODE & SMART CAPTURE • Scan the barcode on your door jamb to fill in year, make, model, trim, and engine details automatically • Point the camera at an odometer, a license plate, or a registration sticker and let it read the number — you confirm before anything saves • 1,678+ models across 70+ makes, bundled and searchable offline TROUBLE CODES, THE RIGHT WAY • Log a code by hand or read it straight off an OBD-II adapter • 18,821 built-in code definitions, including manufacturer-specific codes matched to your vehicle's actual make — a generic definition for a code your car doesn't use isn't a definition, it's a guess • Live data, freeze frames, and a full read/clear history CONNECT AN OBD-II ADAPTER (Pro) • Bluetooth LE ELM327-compatible adapters • Live values — RPM, speed, coolant temp, load, throttle, fuel level, voltage • Record a drive and read the numbers back afterward • Clear codes with a clear explanation of what that resets and what it doesn't SAFETY RECALLS • Checked against NHTSA automatically, cached so it reads offline • Mark one done, or log it as a service — either way it stops nagging you HAND OFF THE WHOLE HISTORY • One-tap PDF maintenance report — full history, or strip costs and notes for a report you're handing a buyer • Backup and transfer between your own devices — nothing else touches your data ONE PURCHASE. NO SUBSCRIPTION. The free tier tracks one vehicle with everything else unlocked — unlimited service records, reminders, parts, recalls, and manual code lookup. ServiceVault Pro is a single purchase that unlocks unlimited vehicles, the OBD-II adapter, recorded sessions, and PDF reports. Yours forever — your service history is a logbook, not something you rent. PRIVACY, ACTUALLY ServiceVault doesn't have a server. The only network calls are optional, direct lookups — VIN decode and recalls against NHTSA's free public API, DTC/vehicle-database updates against public data — and every one of them works without you. Nothing about your vehicles, your driving, or you is collected, tracked, or sent anywhere. Requires an OBD-II Bluetooth LE adapter (sold separately) for trouble-code reading, live data, and code clearing. Not required for maintenance tracking, VIN decode, or recalls.
Screenshots
Verdict
The clearest difference is in-app purchases: MAXOBD at none against ServiceVault's 1. MAXOBD also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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
Both are free to download. ServiceVault sells 1 one-off in-app purchase. MAXOBD asks for nothing beyond the download.
MAXOBD ships an update every 3 weeks, ServiceVault every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | MAXOBD | ServiceVault |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (7 ratings) — better | — |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 47 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | 祖策 谢 | Louis Halbert |
In-app purchases
MAXOBD
No in-app purchases
ServiceVault
- ServiceVault Pro$14.99
Questions
Is MAXOBD free?
Is ServiceVault free?
Do MAXOBD or ServiceVault have ads?
Which is updated more often, MAXOBD or ServiceVault?
Other comparisons















