Signed URL vs SIC4340 Generic
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Signed URL
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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 NXPโs distribution partners worldwide. Visit https://www.nxp.com/ntagsmartsensor for more information.
SIC4340 Generic
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SIC4340 Generic is a free application for SIC4340 development kit - NFC with Galvanostat sensor interface developed by Silicon Craft Technology PLC. (SIC). This app support both constant and square wave current biasing and measure the Voltage.
Screenshots
Verdict
The clearest difference is update cadence: SIC4340 Generic at every 5 weeks against Signed URL's every 22 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Signed URL ships an update every 22 months, SIC4340 Generic every 5 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.
| Parameter | Signed URL | SIC4340 Generic |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 22 months | Every 5 weeks โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13 |
| Further details โ not scored | ||
| Size | 39 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | NXP Semiconductors | SILICON CRAFT TECHNOLOGY PUBLIC COMPANY LIMITED |
In-app purchases
Signed URL
No in-app purchases
SIC4340 Generic
No in-app purchases
Questions
Is Signed URL free?
Is SIC4340 Generic free?
Do Signed URL or SIC4340 Generic have ads?
Which is updated more often, Signed URL or SIC4340 Generic?
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