SensorCheck™ vs BILGE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SensorCheck™
This app, when paired with a specific diagnostic tester, compares marine transducer performance against factory specifications. It accurately tests a wide range of frequencies and automatically generates test reports that can be shared. Technicians can also use it to submit warranty information.
- Compares transducer performance to factory specs
- Tests traditional and CHIRP-ready transducers
- Supports frequencies from 10 kHz to 500 kHz
- Automatically reads XducerID® features
- Generates and shares test reports
- Enables warranty information submission
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The AIRMAR SensorCheck™ App, paired with the TDT1000 Transducer Diagnostic Tester, compares the performance of a transducer in the field to its original AIRMAR factory specifications. Simply install the SensorCheck™ app on your Bluetooth LE-enabled smart device, connect to the TDT1000, and get started! Accurately test both traditional and CHIRP-ready transducers that operate at frequencies ranging from 10 kHz to 500 kHz. With CHIRP-ready models and any traditional models 1kW and above, the TDT1000 will automatically read XducerID® features, such as transducer model, frequency, part number, serial number, total run time, and maximum internal ceramic temperature. When the test is complete, an IN RANGE or OUT OF RANGE determination is made and test reports are automatically generated. Results can be emailed or texted directly to the boat owner or an AIRMAR technician. SensorCheck™ enables technicians to automatically submit warranty information to AIRMAR. The TDT1000 kit includes test unit, TDT Test block, power supply, break-out box for bare wire transducers and carrying case. Additional OEM Test Cables required (sold separately).
BILGE
Control your dry bilge pump system remotely. Schedule pump operation, monitor current status, and configure water sensors. View system event history with pump activity charts.
- Pump on demand
- Scheduled run times
- Current pump status display
- Water sensor configuration
- System event history
- Pump activity charts
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This app connects to BILGE-B-DRY. It allows you to run the pump on demand or define scheduled run times and durations. The current status of the pump is displayed in the app. Configure water sensors, adjust settings, and view system event history including charts of pump activity over time. BILGE-B-DRY is the most affordable dry bilge system on the market with wireless connectivity to smart devices, automatic use and easy installation. BILGE-B-DRY is your answer to a cleaner bilge reducing boat odors, mold, and mildew. Removing the excess water helps to reduce corrosion and wear protecting electrical wiring, thru-hull sensors and transducers. Don't forget about stepped hulls, with water laying stagnant forward of the step. The system is available in four configurations: single pump, dual pump, triple pump and quad pump.
Screenshots
Verdict
The clearest difference is review sentiment: BILGE at 100% against SensorCheck™'s 0%. BILGE also leads on rating (4.3 vs 3.8) and update cadence (fortnightly vs every 3 months). On price, ratings volume, ads and in-app purchases 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.
BILGE holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews point the same way: 0% of SensorCheck™'s written reviews are positive against 100% of BILGE's.
SensorCheck™ ships an update every 3 months, BILGE fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | SensorCheck™ | BILGE |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (6 ratings) | 4.3 (8 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 | 8 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 16.6 |
| Further details — not scored | ||
| Size | 30 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Airmar Technology Inc. | Neptunian Sky LLC |
Customer experience
SensorCheck™
BILGE
In-app purchases
SensorCheck™
No in-app purchases
BILGE
No in-app purchases









