Comparison

Signed URL vs ST AIoT Craft

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

Head to head
About

Signed URL

Features
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This APP demonstrates how an NHS3100 NTAG SmartSensor can be used for passive temperature monitoring. Besides this iOS APP, one needs to have the NHS3100 starter kit with the demo board. Other supported demonstration boards will become available. - Use the APP to configure the firmware - Use the background reading or a generic NFC reading APP such as NXP's Tag Info to read out the dynamically created URL and launch it in your webbrowser. The NTAG SmartSensor range of ICs extends NXP's NFC portfolio of passive NFC tags and smart electronic devices. NTAG SmartSensor devices are single-chip solutions combining the now ubiquitous NFC smartphone connectivity with autonomous sensing, data processing and validation, and logging. The NTAG SmartSensor is easy to use in an application by simply adding an NFC antenna and a battery. The devices are also versatile and can be easily combined with other companion chips like radios or sensor solutions. This APP interacts with the NXP's NHS3100 IC, optimized for temperature monitoring and logging. The temperature sensor offers an absolute accuracy of 0.3C. Each chip comes pre-calibrated and NXP provides a certificate with NIST traceability, easing the use of this IC for medical and pharmaceutical applications. NXP delivers for the NHS3100 a starter kit which is available for both macOS and Windows. Through this starter kit, developers can implement their own use cases, starting with this basic use case of temperature logging. NXP delivers the example code for both this iPhone APP and the corresponding firmware for the NHS3100. The starter kit can be ordered via the NXP website and NXPโ€™s distribution partners worldwide. Visit https://www.nxp.com/ntagsmartsensor for more information.

About

ST AIoT Craft

Features
Read full description

ST AIoT Craft is a cloud development environment to create in-sensors AI and sensors-to-cloud solutions with ST components. The STAIoT Craft App allows to interact with the cloud environment to deploy and monitor projects. Start to use the ST AIoT Craft App with project examples and ST developers' boards; profile your built in-sensor AI solution with machine learning core technology inside ST MEMS sensors and deploy it on the IoT sensor node.

Screenshots

Signed URL4 screens
ST AIoT Craft4 screens

Verdict

The call

The clearest difference is update cadence: ST AIoT Craft at every 2 months against Signed URL's every 22 months. Signed URL's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Signed URL ships an update every 22 months, ST AIoT Craft every 2 months. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.

Scorecard2 real differences ยท 4 level
Signed URL versus ST AIoT Craft: the parameters behind the verdict, then further details
ParameterSigned URLST AIoT Craft
PriceFreeFree
Update frequencyEvery 22 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size39 MB94 MB
Age rating4+4+
DeveloperNXP SemiconductorsSTMicroelectronics

In-app purchases

None

Signed URL

No in-app purchases

None

ST AIoT Craft

No in-app purchases

Questions

Is Signed URL free?
Signed URL is free to download, with no in-app purchases.
Is ST AIoT Craft free?
ST AIoT Craft is free to download, with no in-app purchases.
Do Signed URL or ST AIoT Craft have ads?
Neither Signed URL nor ST AIoT Craft shows ads.
Which is updated more often, Signed URL or ST AIoT Craft?
Signed URL ships an update every 22 months, and ST AIoT Craft every 2 months. Most recently, Signed URL was updated on October 26, 2026 and ST AIoT Craft on November 4, 2026.

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