Comparison

OPN Admin for OPNsense vs OBD2 Ninja

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

Head to head
About

OPN Admin for OPNsense

This app provides comprehensive control over your OPNsense firewall with a visually appealing interface. Monitor network traffic, manage firewall rules, and perform advanced diagnostics with real-time insights and secure authentication.

Highlights
  • Real-time network traffic dashboard
  • Firewall rule creation and management
  • Advanced Ping and Traceroute diagnostics
  • DHCP and Static IP management
  • Biometric authentication
  • Liquid Glass UI with dark mode
Features
Read full description

The most advanced OPN admin client ever built. Experience full control over your firewall with a stunning Liquid Glass interface and real-time insights. Pro-Grade Features Everything you need to manage your network securely and efficiently. Real-time Dashboard Live traffic graphs, system health, and resource monitoring at a glance. Firewall Management Create, edit, and toggle rules. Manage NAT and inspect logs in real-time. Advanced Diagnostics Beautifully visualized Ping and Traceroute with timeline-based hop tracking. DHCP & Static IP Manage leases, view MAC addresses, and fix IPs with a single tap. Secure by Design Biometric authentication and secure credential storage protect your access. Apple Watch Your firewall on your wrist: status, CPU and memory, interfaces and gateways, live traffic and recent alerts, with complications for your watch face and a Smart Stack card. Switch chosen firewall rules and WireGuard tunnels on or off, with a confirm step first. Your API key and secret stay on your iPhone; the watch never holds them. Liquid Glass UI A premium design language with smooth animations and dynamic dark mode.

About

OBD2 Ninja

Features
Read full description

Check engine light on? Find out whether it's serious before you book a shop visit or drive another mile. OBD2 Ninja reads your car's codes and rates every one Fix Now, Fix Soon, or Monitor for your year, make and model. Then it tells you what to check first. $0.99 once. No subscription, no account, no ads. OBD2 Ninja carries Apple's "Data Not Collected" privacy label, and everything works offline. In a parking garage, on the shoulder, with no signal at all. IS IT SERIOUS? Every code gets an urgency rating, not just a definition: • Fix Now: stop driving or get it looked at today • Fix Soon: safe to drive, book it this week • Monitor: keep an eye on it Plus what usually causes it on your specific vehicle, and the cheapest thing to check first. READY FOR EMISSIONS? See all eight readiness monitors at a glance before you go to the test station. Know whether you'll pass, or how many more miles of driving you need, instead of paying to find out. READ AND CLEAR • Stored, pending and permanent codes • Freeze frame data captured when the fault tripped • Clear codes and reset the light after you fix it • Confirm the fix actually held LIVE DATA Watch coolant temp, fuel trims, O2 sensors, RPM, load and timing in real time. Pin down an intermittent fault the parts-store scanner can't see. WHAT YOU NEED Any ELM327 Bluetooth LE or Wi-Fi adapter, and a car built 1996 or later (2001+ petrol / 2004+ diesel in the EU). Tested and confirmed with: Carista, Vgate iCar Pro BLE, OBDLink MX+. Full list and setup guide at ninja-obd2.com. WHAT IT DOESN'T DO OBD2 Ninja reads the engine and emissions systems that every car is required to expose. That is what turns your check engine light on. It does not read ABS, airbag, transmission or body-module codes, and it can't do dealer-level coding. Those need manufacturer-specific tools. We'd rather tell you that now than after you've paid. PRIVACY No account. No sign-up. No analytics. Nothing leaves your phone. Apple's own privacy label on this page reads "Data Not Collected." Check it. SUPPORT A real person answers every email. support@ninja-obd2.com

Screenshots

OPN Admin for OPNsense4 screens
OBD2 Ninja4 screens

Verdict

The call

The clearest difference is price: OPN Admin for OPNsense at Free against OBD2 Ninja's $0.99. OPN Admin for OPNsense also leads on device support (3 vs 1). OBD2 Ninja's advantage is in-app purchases (none vs 7). On update cadence, ads and iOS requirement 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

OPN Admin for OPNsense is free to download; OBD2 Ninja costs $0.99 up front. OPN Admin for OPNsense sells 6 one-off in-app purchases. OBD2 Ninja asks for nothing beyond the download.

UpkeepUpdate frequency

OPN Admin for OPNsense ships an update every 4 days, OBD2 Ninja every 3 days. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
OPN Admin for OPNsense versus OBD2 Ninja: the parameters behind the verdict, then further details
ParameterOPN Admin for OPNsenseOBD2 Ninja
PriceFree — better$0.99
Rating5.0 (12 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 4 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size51 MB3 MB
Age rating4+4+
DeveloperAntonios FrerisCory Green

In-app purchases

6 purchases

OPN Admin for OPNsense

One-time6
  • Tier 1 Supporter2 variants$1.99
  • Support Tier 2$3.99
  • Tier 3 Supporter$8.99
Show 3 more
  • Tier 4 Supporter$12.99
  • Demi-God Supporter$44.99
  • God Tier Supporter$89.99
None

OBD2 Ninja

No in-app purchases

Questions

Is OPN Admin for OPNsense free?
OPN Admin for OPNsense is free to download, with in-app purchases available.
Is OBD2 Ninja free?
OBD2 Ninja costs $0.99, with no in-app purchases.
Do OPN Admin for OPNsense or OBD2 Ninja have ads?
Neither OPN Admin for OPNsense nor OBD2 Ninja shows ads.
Which is updated more often, OPN Admin for OPNsense or OBD2 Ninja?
OPN Admin for OPNsense ships an update every 4 days, and OBD2 Ninja every 3 days. Most recently, OPN Admin for OPNsense was updated on October 21, 2026 and OBD2 Ninja on October 9, 2026.

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