NoxOps vs NOX TESTER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NoxOps
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NoxOps protects you from phishing, scams, and malicious links — entirely offline on your device. KEY FEATURES • Free Feature: Local AI-powered link scanning (UrlAnalystAI) to detect malicious URLs instantly. • Premium Features: Offline AI analysis for messages, emails, and files: SMS Intel Lab — analyze any message with SmsAnalystAI to detect scams and frauds. Email Intel Lab — powered by EmailAnalystAI, identify phishing or spoofed emails. File Analysis Lab — uses MalwareAnalystAI with multi-layer heuristics for unsafe files. TECHNOLOGY NoxOps uses on-device offline AI models and heuristic engines for fast, private detection — no cloud uploads, no external servers, no internet needed. PRIVATE BY DESIGN NoxOps runs entirely offline. All message, link, and file analyses happen locally on your device — no accounts, no data collection, no network connection required. Internet access is used only for optional app updates or in-app purchases. Your data never leaves your device. PREMIUM ACCESS Unlock full AI protection with NoxOps Pro Access — includes unlimited offline analysis for emails, messages, and files, plus future security features and model updates.
NOX TESTER
This diagnostic tool tests NOx sensors by connecting to the sensor's circuit board and probe. It activates the sensor, collects data on NOx and oxygen levels for three minutes, and analyzes the results to identify faults and generate a report.
- Connects to NOx sensor via diagnostic harness
- Communicates via CAN signals
- Tests sensor circuit board and detection probe
- Activates NOx sensor
- Collects NOx and oxygen concentration data
- Analyzes data and generates test reports
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The NOx SENSOR TESTER is a specialized testing device for NOx sensors. It connects to the sensor via a dedicated diagnostic harness. The self-developed APP+ diagnostic device communicates with the NOx sensor via CAN signals, testing the sensor circuit board and detection probe. Upon successful communication, a working command can be sent to activate the NOx sensor. The probe will then start heating up and, once it reaches its operating temperature, will continuously collect NOx values and oxygen concentration. The testing process takes 3 minutes, during which the device analyzes the collected data to determine the sensor's condition, identifies the cause of any faults, and generates a test report.
Screenshots
Verdict
The clearest difference is in-app purchases: NOX TESTER at none against NoxOps's 2. NoxOps's advantage is update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 15.6). 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
Both are free to download. NoxOps sells 2 one-off in-app purchases. NOX TESTER asks for nothing beyond the download.
NoxOps ships an update every 4 days, NOX TESTER every 3 weeks. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.
| Parameter | NoxOps | NOX TESTER |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 52 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Usham Kamaljit Singh | Proformance Diagnostics LLC |
In-app purchases
NoxOps
- NoxOps Pro Access$10.00
- NoxOps Infinite Access$200.00
NOX TESTER
No in-app purchases









