Comparison

evDash OBD2 vs BZ

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

Head to head
About

evDash OBD2

Monitor your electric vehicle's performance with a live dashboard and diagnostic tools. View real-time battery, power, and driving data, and access advanced service functions. Supports a wide range of EVs and OBD2 adapters, with optional Pro features for deeper insights.

Highlights
  • Live EV dashboard
  • Battery data overview
  • Cell voltage and temperature monitoring
  • Apple CarPlay support
  • Service Menu with ECU scan
  • Pre-purchase battery check
  • Acceleration and brake tests
Features
Read full description

evDash OBD2 is a live dashboard and diagnostics multitool for electric vehicles. Connect a compatible OBD2 adapter and view real-time EV data on your phone or Apple CarPlay. evDash is built to support as many electric cars as possible — if a vehicle exposes useful data over OBD2, the goal is to make it work. Main features: • Live EV dashboard with battery, power and driving data • Battery SOC, SOH, voltage, current and charging overview • Cell voltages, temperature data and 12V battery status • Charging graphs and trip energy statistics • Apple CarPlay support • Multi-car garage with quick switching • Service Menu with ECU scan, ECU versions and DTC tools • Pre-purchase battery check and battery health tests • Acceleration and brake tests • TPMS, CAN sniffer and diagnostic export tools • Remote Tuning to help add or improve vehicle support • Local logs, exports and optional remote upload evDash works with supported OBD2 BLE, BT3/SPP, WiFi, MFi/OBDLink, BMW ENET and evDash M5Stack relay adapters. Available data depends on the vehicle model, adapter type and supported vehicle profile. Some cars expose a lot of battery data, some expose only basic OBD2 data, and some are restricted by the vehicle gateway. Which cars are supported, and which data each one provides, is listed in the vehicle support matrix, updated with every release: https://www.evdash.eu/evdash/vehicles/ Reported anomalies — what owners observed after connecting an adapter or during diagnostics, with investigation status and precautions: https://www.evdash.eu/evdash/vehicles/incidents/ evDash Pro unlocks advanced diagnostics, multi-car quick switch, battery internal resistance calculation, cell health tests, graph exports, Service Menu tools and fullscreen diagnostic views. It is available as a monthly or yearly auto-renewable subscription, or as a one-time lifetime purchase. Monthly and yearly plans include the same Pro features. Pricing is displayed in the App Store before purchase and may vary by region. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period; the lifetime purchase is a one-time payment with no renewal. You can manage and cancel subscriptions in your Apple ID account settings. Disclaimer: evDash is a diagnostic tool used to read data from your vehicle and is provided for information purposes only. Use is entirely at your own risk. The developer accepts no liability for any damage to your vehicle, battery, adapter or device, or for any decisions made based on the data shown. Always follow your vehicle manufacturer's instructions. evDash is an independent app and is not affiliated with or endorsed by any vehicle manufacturer. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ MFi accessory authorization: - OBDLink MX+ (OBD Solutions LLC) — protocol string com.obdlink, MFi Product Plan ID (PPID): 221699-0001 - Vgate vLinker FS/MS (ShenZhen CheBoTong) — protocol string com.vgatemall, MFi PIDs: 649626-099130 (vLinker FS), 649626-112572 (vLinker MS) Both accessory manufacturers have confirmed that this app (bundle ID sk.next176.evdashapp) has been added to their MFi Product Plan.

About

BZ

Features
Read full description

BZ-Battery reads the high-voltage battery in a Toyota bZ4X and shows you what the car keeps to itself, on your phone and on your CarPlay screen. You need a Bluetooth LE OBD adapter, plugged into the port under the dash. It is tested with an OBDLink CX; vLinker and Veepeak should work too. The cheapest "ELM327 mini" clones often can't read this car. The adapter is not included. What you get: • Charge, power and current, live • Every cell voltage, with the weakest one marked • All pack temperature sensors • Battery health, as the car itself reports it • Measured pack capacity, tracked over months • The 12 V battery's voltage • Every drive and charge kept, with the energy it used • Five dashboards. Pick the one you like. • CarPlay: charge, power, cells, temperature and 12 V on the car's screen Which cars: Toyota • bZ4X 2026 • bZ4X 2022–2025 • bZ 2026 • bZ4X Touring 2026 • bZ Woodland 2026 • C-HR+ 2026 • C-HR 2026 • bZ4X / Bozhi 4X 2024 (China) Subaru • Solterra 2022–2025 • Solterra 2026 • E-Outback 2026 • Trailseeker 2026 • Uncharted 2026 Lexus • RZ 2023–2025 • RZ 2026 It only reads. The app cannot change a setting, clear a fault, or write anything to the car at all. That is enforced in the app. No account, no ads, no tracking. Your readings, history and settings stay on your phone. What the app does send is anonymous and never identifies you or your car: the car model you picked, a short report of how each connection went, and battery-health figures for a study of how these packs age. You can switch the reports and the study off in Settings. Drive summaries are sent only if you turn that on. No car to hand? There is a demo mode built in, so you can look at every screen before you plug anything in. An independent app. Not made by, affiliated with, or endorsed by Toyota, Subaru or Lexus.

Screenshots

evDash OBD24 screens
BZ4 screens

Verdict

The call

The clearest difference is price: evDash OBD2 at Free against BZ's $14.99. evDash OBD2 also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.0). BZ's advantage is in-app purchases (none vs 3). On update cadence and ads 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

evDash OBD2 is free to download; BZ costs $14.99 up front. evDash OBD2 sells 3 in-app purchases, starting at $2.99 per month. BZ asks for nothing beyond the download.

UpkeepUpdate frequency

evDash OBD2 ships an update every 5 days, BZ every 3 days. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
evDash OBD2 versus BZ: the parameters behind the verdict, then further details
ParameterevDash OBD2BZ
PriceFree — better$14.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size57 MB4 MB
Age rating4+4+
DeveloperNEXT176HGSoftware ApS

In-app purchases

3 purchases

evDash OBD2

Subscriptions2
  • evDash Pro Monthly$2.991 Month
  • evDash Pro Yearly$14.991 Year
One-time1
  • evDash Pro Lifetime$39.90
None

BZ

No in-app purchases

Questions

Is evDash OBD2 free?
evDash OBD2 is free to download, with in-app purchases available.
Is BZ free?
BZ costs $14.99, with no in-app purchases.
Do evDash OBD2 or BZ have ads?
Neither evDash OBD2 nor BZ shows ads.
Which is updated more often, evDash OBD2 or BZ?
evDash OBD2 ships an update every 5 days, and BZ every 3 days. Most recently, evDash OBD2 was updated on October 14, 2026 and BZ on October 19, 2026.

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