Comparison

Sensor Technology Engineering vs PAAT

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

Head to head
About

Sensor Technology Engineering

Features
Read full description

The STE App is the Bluetooth-enabled application for mobile devices to connect with STE radiation detectors. It provides a real-time detection interface in support of Countering Weapons of Mass Destruction (CWMD) and Explosive Ordinance (EoD) Missions. The app contains several features, including radiation exposure, accumulated radiation dosage, geospatial data and a data sharing capability that are primarily used by emergency responders to allow them to take action quickly and decisively. STE App allows the user to connect the STE detectors to mobile devices using Bluetooth communication technology. It enables the user to stream the detector data (gamma and neutron) directly from the detector to a mobile device in real time. Device Connection: Each time the STE device is turned on, Bluetooth communications are enabled, and the device is available for connection for two minutes. If the pairing is successful, the user can view the real time data stream for gamma and neutron detection in the application. Once the device is found and linked to the app, the device ID will be automatically stored in the app. Data Streaming: After the successful connection, a waterfall graph and a display meter show the level of gamma detected in real-time, with options to select units such as CPS, Β΅R/h, Β΅rem/h, and Β΅Sv/h. STE detectors equipped with neutron detection are visible on the app and measure counts. Once the count rate exceeds the threshold (trip) value, the detector and mobile device will started alarming. Users can toggle between the screens to select various functions of the app. Geo-Mapping: The app has an intuitive interface with a basic navigation system. That will display the "trace history" of where the detector has been carried. If the device detects radiation and sounds an alarm, the map will trace that information with colors. The exact location and address will be recorded in the alarm data. Data Sharing: STE app compiles all the relevant data that can be shared via emails, SMS, and other methods available on the mobile device.

About

PAAT

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PAAT was developed to enhance the capabilities of States in assessing radiation alarms triggered by a person. In most cases, the reason the person will set off an alarm is a medical treatment or diagnostic procedure involving the administration of a radiopharmaceutical. When a radiation alarm is triggered by a person, PAAT can be used by the investigating officer to conduct a simple interview and measurement. The information in the App provides assistance for the investigating officers in States in the assessment of radiation alarms caused by persons to more effectively and efficiently combat the movement of nuclear and other radioactive materials out of regulatory control at points of entry and major public events (MPE). Note: β€’ The App does not collect any identifying personal data. β€’ The dose estimates in the App are for standard models and should not be considered patient-specific under any circumstances. β€’ The assessment results shall be used only for nuclear security purposes. β€’ The App has not been extensively tested on all platforms, under all conditions. As such, users of this tool must verify all results prior to decision making.

Screenshots

Sensor Technology Engineering4 screens
PAAT2 screens

Verdict

The call

The clearest difference is update cadence: PAAT at every 3 weeks against Sensor Technology Engineering's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sensor Technology Engineering ships an update every 7 months, PAAT every 3 weeks. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

Scorecard1 real difference Β· 5 level
Sensor Technology Engineering versus PAAT: the parameters behind the verdict, then further details
ParameterSensor Technology EngineeringPAAT
PriceFreeFree
Update frequencyEvery 7 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS13.013.0
Further details β€” not scored
Size94 MB11 MB
Age rating4+4+
DeveloperSensor Technology EngineeringIAEA

In-app purchases

None

Sensor Technology Engineering

No in-app purchases

None

PAAT

No in-app purchases

Questions

Is Sensor Technology Engineering free?
Sensor Technology Engineering is free to download, with no in-app purchases.
Is PAAT free?
PAAT is free to download, with no in-app purchases.
Do Sensor Technology Engineering or PAAT have ads?
Neither Sensor Technology Engineering nor PAAT shows ads.
Which is updated more often, Sensor Technology Engineering or PAAT?
Sensor Technology Engineering ships an update every 7 months, and PAAT every 3 weeks. Most recently, Sensor Technology Engineering was updated on October 2, 2026 and PAAT on October 11, 2026.

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