NOX TESTER vs SoluThium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
SoluThium
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BMS App is a battery management and monitoring tool designed to help users view and manage battery system status more easily. With the app, users can monitor key battery data in real time, including voltage, current, temperature, and SOC, allowing them to stay informed about battery performance at all times. The app supports device connection and status monitoring, helping users quickly identify abnormal conditions and improve both safety and management efficiency during battery operation. Key features include: • Real-time battery monitoring View important parameters such as voltage, current, temperature, and SOC. • Alert notifications Receive timely indications of abnormal battery conditions or warning states. • Device connection and management Connect to battery devices and view operating information conveniently. • Clear and intuitive data display A simple interface makes it easier to understand battery status for daily use and maintenance. BMS App is suitable for users who need to monitor and manage battery status, and can be used for daily monitoring, device maintenance, and condition checks.
Screenshots
Verdict
The clearest difference is update cadence: SoluThium at every 3 days against NOX TESTER's every 3 weeks. SoluThium also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
NOX TESTER ships an update every 3 weeks, SoluThium every 3 days. The most recent releases landed on June 5, 2026 and September 10, 2026 respectively.
| Parameter | NOX TESTER | SoluThium |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 51 MB |
| Age rating | 4+ | 12+ |
| Developer | Proformance Diagnostics LLC | SoluThium, Inc. |
In-app purchases
NOX TESTER
No in-app purchases
SoluThium
No in-app purchases





