Comparison

KATA Dash Cam vs OBD Ninja

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

Head to head
About

KATA Dash Cam

Read full description

This is an application to connect with Kata Dash cam.

About

OBD Ninja

Read full description

OBD Ninja turns your car into a smart cockpit. Connect any Bluetooth LE ELM327 OBD2 adapter and watch your vehicle's hidden data come alive — speed, RPM, fuel economy, estimated horsepower, G-force, coolant temperature, and more — in beautifully designed real-time dashboards. From the daily commute to a weekend touge run or a cross-country road trip, OBD Ninja captures every drive with precise telemetry, GPS routes, and synchronized video overlays you can replay anywhere. ▼ KEY FEATURES ■ GT View — Drive Recording with Telemetry Overlay Record every drive with live OBD2 data, speed, G-meter, and gauges burned directly into the video. The racing-sim inspired HUD turns each clip into a shareable cockpit-cam reel — perfect for touge runs, track days, or tuning analysis. Playback at up to 8x. ■ Real-Time Dashboard Stream live OBD2 data straight from your car. Choose from multiple themes and layouts — from minimalist gauges to full cockpit-style displays. With Premium, the new Twin Meter layout pairs ring gauges and data sets on one screen. ■ Estimated Power & Virtual Dyno "How much horsepower am I making right now?" OBD Ninja estimates power and torque from fuel flow and shows them live on your dashboard, with peak values (Max) and the RPM where they occurred. After the drive, open any drive log and switch to Virtual Dyno: it analyzes the whole drive and draws a chassis-dyno-style power and torque curve against RPM — see your car's power band without a dyno. Share the curve as an image, complete with your car's name. With Premium, Power Calibration refines the estimate for your specific car using a correction factor derived from your own drive logs. ※ Estimates are derived from fuel flow and are for reference only, not a substitute for measured values. ■ Fuel Monitor & Coin Alert Track real-time fuel efficiency (km/L, MPG, or L/100km) plus the exact amount and cost of fuel burned. Coin Alert plays a satisfying coin sound every time you spend a set increment — making frugal driving genuinely fun. ■ GPS Drive Log Sync GPS and OBD2 data into a single timeline. Replay any past drive on a map and analyze it section by section. ■ Save Playback as a Video (Screen Recording) Save the playback screen of any drive log — Dashboard or GT View, exactly as shown — as a video in your photo library. Tap to stop; app sounds such as the speed chime are captured too. No subscription required. ■ JDM Speed Chime A faithful recreation of the nostalgic 100 km/h warning chime found in classic Japanese cars — a tribute to JDM culture. With GPS Chime Mode, no OBD2 adapter is required: the chime works on GPS speed alone, on a dedicated screen with a map and a large speed readout. ■ Deep Customization Adjust gauge ranges, layouts, color themes, and warning thresholds. Choose km/h / mph, °C / °F, km/L / MPG / L/100km, and PS / HP / kW for power. ■ PC Companion App Transfer drives to your computer via QR code. The free desktop companion exports videos, creates time-lapses, and manages your drive library on a big screen. ▼ REQUIREMENTS - An OBD2-compliant vehicle (most cars made after 1996 in the US, 2001 in the EU, 2008 in Japan) - A Bluetooth Low Energy (BLE) ELM327 adapter — Wi-Fi and classic Bluetooth adapters are NOT supported ※ Some features, such as GPS Chime Mode, work without an adapter. ▼ PREMIUM SUBSCRIPTION Some advanced features require a Premium subscription (Monthly or Yearly) with a 14-day free trial. Subscriptions auto-renew unless cancelled at least 24 hours before the renewal date. Payment is charged to your Apple ID. Manage or cancel anytime in iPhone Settings → Apple ID → Subscriptions. ▼ LINKS Website: https://www.obd-ninja.com/ Terms of Service: https://www.obd-ninja.com/terms Privacy Policy: https://www.obd-ninja.com/privacy-policy Drive smarter. Drive deeper. OBD Ninja.

Screenshots

KATA Dash Cam4 screens
OBD Ninja4 screens

Verdict

The call

The clearest difference is in-app purchases: KATA Dash Cam at none against OBD Ninja's 2. KATA Dash Cam also leads on iOS requirement (12.0 vs 15.5). OBD Ninja's advantage is update cadence (weekly vs every 4 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OBD Ninja sells 2 in-app purchases, starting at $4.99 per month. KATA Dash Cam asks for nothing beyond the download.

UpkeepUpdate frequency

KATA Dash Cam ships an update every 4 months, OBD Ninja weekly. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 3 level
KATA Dash Cam versus OBD Ninja: the parameters behind the verdict, then further details
ParameterKATA Dash CamOBD Ninja
PriceFreeFree
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.5
Further details — not scored
Size89 MB47 MB
Age rating4+4+
DeveloperHung HoangSKYPHIC STUDIO

In-app purchases

None

KATA Dash Cam

No in-app purchases

2 purchases

OBD Ninja

Subscriptions2
  • OBD Ninja Premium14 Days trial$4.991 Month
  • OBD Ninja Premium14 Days trial$39.991 Year

Questions

Is KATA Dash Cam free?
KATA Dash Cam is free to download, with no in-app purchases.
Is OBD Ninja free?
OBD Ninja is free to download, with in-app purchases available.
Do KATA Dash Cam or OBD Ninja have ads?
Neither KATA Dash Cam nor OBD Ninja shows ads.
Which is updated more often, KATA Dash Cam or OBD Ninja?
KATA Dash Cam ships an update every 4 months, and OBD Ninja weekly. Most recently, KATA Dash Cam was updated on October 15, 2026 and OBD Ninja on October 18, 2026.