Comparison

ДКП vs OBD2 Car Scanner Pro ELM327

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

Head to head
About

ДКП

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ДКП авто за 60 секунд – это приложение, которое автоматически заполняет договор купли-продажи автомобиля. - Просто наведите камеру на паспорт, и данные заполнятся автоматически. Или: - Начните вводить первые буквы своей ФИО, наша система угадает, что вы хотите набрать и предложит вам варианты заполнения. - Напишите индекс или начните вводить первые буквы населенного пункта, и вашу регистрацию мы заполним автоматически. - Введите код подразделения, а кем выдан паспорт, мы напишем сами. - Просто введите гос. номер своего авто, а все данные по нему, мы загрузим автоматически. - Заполните серию, номер паспорта, а мы проверим его на действительность и обезопасим вашу сделку. Мы хотим, чтобы составление договора купли-продажи авто не отнимало у вас много времени, поэтому наши алгоритмы ежедневно учатся и заполняют договор за считанные секунды. Наш договор подготовлен юристами и по состоянию на 2025 год полностью соответствует действующему законодательству. Учтены существенные условия договора, все гарантийные обязательства продавца и покупателя. Мы гарантируем, что данный договор будет принят сотрудниками ГИБДД. Договор купли-продажи автомобиля (ДКП авто), заполненный в нашем мобильном приложении актуален для сделки, совершенной между физическими лицами. Обработка фотографии документа происходит в автономном режиме, все данные остаются исключительно на вашем устройстве. ДКП авто за 60 секунд не хранит и не передает третьим лицам ваши данные.

About

OBD2 Car Scanner Pro ELM327

Transform your OBD-II adapter into a powerful car diagnostic tool. Monitor live engine data, read and clear diagnostic trouble codes, and gain insights into your vehicle's health. Includes AI analysis for potential causes and performance testing features.

Highlights
  • Connects to OBD-II adapters
  • Live engine data dashboard
  • Read and clear diagnostic trouble codes
  • AI analysis for code causes
  • Vehicle health reports (PDF)
  • Performance testing (0-60, braking)
  • Garage for vehicle maintenance tracking
Features
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Turn a compatible OBD-II adapter into a clear, modern diagnostic dashboard. It connects to Wi-Fi and Bluetooth LE ELM327-compatible adapters, detects what your vehicle actually supports, and shows the data it returns. No account, and the diagnostics work offline. LIVE DATA • RPM, speed, coolant temperature, engine load, throttle position and module voltage • Over 20 more when your ECU exposes them: MAF, manifold and barometric pressure, timing advance, fuel trims, fuel level, intake and ambient temperature, runtime and distance • Cards or analog-inspired gauges, with monospaced digits that hold still • Parameters your vehicle does not support are labelled, not faked READ AND UNDERSTAND CODES • Read stored and pending diagnostic trouble codes • Generic OBD-II code descriptions are carried in the app, with family and system group • Manufacturer-specific codes are marked as such, not given a guessed description • Clear supported emissions codes, with an explicit warning about what that does AI ANALYSIS (PRO) • Runs on the session you just read: codes, readiness, freeze frame, live values • Possible causes with reasoning and stated confidence, cheapest and safest checks first • Shows the exact values before anything is sent, and never sends your VIN or location • Optional — the on-device insights always work without it, offline and free DIAGNOSTIC DETAIL • Freeze frame: the conditions the ECU stored when a code was set • Emissions readiness: which monitors have completed their drive cycle • VIN reading where your vehicle supports Mode 09 • Battery and charging: voltage, a trend, and 30 days of daily min/avg/max GARAGE • Save vehicles with make, model, year, fuel type, mileage and VIN • Track oil, filters, brakes, tires, spark plugs, battery and coolant • Optional service reminders, scheduled on your device RECORD AND EXPORT • Record a live session: min, average and max for every parameter • Export sessions as CSV • Generate a Vehicle Health Report as a PDF and share it PERFORMANCE TESTS • 0–60 mph, 0–100 km/h, 0–200 km/h, 1/8 mile, 1/4 mile and 100–0 braking • Measured from GPS ground speed, with each run's GPS accuracy shown • Personal bests and history per test BUILT TO BE HONEST • No account, no ads, no cross-app tracking • Your vehicles, codes, sessions and reports stay on your device • Core diagnostics work with no internet connection WHAT YOU NEED A compatible Wi-Fi or Bluetooth LE ELM327-style OBD-II adapter, and a vehicle with an OBD-II port. Compatibility depends on the adapter, vehicle, ECU and the PIDs it supports. Classic Bluetooth (SPP-only) adapters and dongles needing their maker's own app are not supported. FREE AND PRO Free includes adapter connection, an essential live dashboard, code reading, a basic readiness overview, one saved vehicle, oil-service tracking, one recording and one PDF report. Pro adds AI analysis, the full parameter dashboard, gauges, live charts and themes, unlimited recordings with CSV export, code clearing, freeze-frame and readiness detail, VIN saving, unlimited reports and vehicles, service reminders, 30-day voltage history and the full performance suite. Pro is an auto-renewing subscription, weekly or yearly. Payment is charged to your Apple Account at confirmation of purchase and renews automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in Settings on your Apple Account. Terms of Use (EULA): https://emirarikaan.github.io/obd2-scanner-terms.html Privacy Policy: https://emirarikaan.github.io/obd2-scanner-privacy.html IMPORTANT This app provides diagnostic information. It is not a mechanic, an inspection authority or a safety system. A trouble code identifies where a fault was detected — it does not confirm which component failed, and neither does the AI analysis. Consult a qualified service professional before carrying out repairs. Do not interact with the app while driving.

Screenshots

ДКП4 screens
OBD2 Car Scanner Pro ELM3274 screens

Verdict

The call

The clearest difference is update cadence: OBD2 Car Scanner Pro ELM327 at every 6 days against ДКП's every 2 months. ДКП's advantage is device support (4 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ДКП sells 2 one-off in-app purchases and OBD2 Car Scanner Pro ELM327 sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ДКП ships an update every 2 months, OBD2 Car Scanner Pro ELM327 every 6 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
ДКП versus OBD2 Car Scanner Pro ELM327: the parameters behind the verdict, then further details
ParameterДКПOBD2 Car Scanner Pro ELM327
PriceFreeFree
Rating—4.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size50 MB28 MB
Age rating4+4+
DeveloperIlya PotkinEmir ARIKAN

In-app purchases

2 purchases

ДКП

One-time2
  • Заполнение с подсказками2 variants$0.99
  • Автозаполнение с подсказками$1.99
3 purchases

OBD2 Car Scanner Pro ELM327

Subscriptions3
  • Pro Weekly$4.997 Days
  • Pro Yearly – Half Price$19.991 Year
  • Pro Yearly$39.991 Year

Questions

Is ДКП free?
ДКП is free to download, with in-app purchases available.
Is OBD2 Car Scanner Pro ELM327 free?
OBD2 Car Scanner Pro ELM327 is free to download, with in-app purchases available.
Do ДКП or OBD2 Car Scanner Pro ELM327 have ads?
Neither ДКП nor OBD2 Car Scanner Pro ELM327 shows ads.
Which is updated more often, ДКП or OBD2 Car Scanner Pro ELM327?
ДКП ships an update every 2 months, and OBD2 Car Scanner Pro ELM327 every 6 days. Most recently, ДКП was updated on October 25, 2026 and OBD2 Car Scanner Pro ELM327 on October 31, 2026.

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