GRCatalog vs ST25DV
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
GRCatalog
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This application is a data capture program which works on a wide range of technologies, including barcode scanning, RFID scanning, signature capturing, fingerprint scanning, contactless card reading, etc. User selects the appropriate data capture tool in the program and uses it with the data capture equipments developed by Grabba.
ST25DV
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The ST25DV-I2C CryptoDemo iOS application shows how to establish a secure transfer channel over NFC, between an STM32 microcontroller and an iOS smartphone using coreNFC framework. It uses the fast transfer mode (FTM) feature of the ST25DV-I2C NFC Tag. An ST25DV-I2C-DISCO board is required to run the demonstration. This demonstration establishes a secure transfer channel by using cryptography to perform mutual authentication and to encrypt the communications over NFC. This secure transfer channel is used during the demonstration to securely send and retrieve data, perform the device settings, and upload new firmware. Only the granted user may communicate with the STM32 microcontroller to perform these operations. All the communications are encrypted between the microcontroller and the iOS phone in both ways, so that the user can configure the product or retrieve data securely. FEATURES : - Use the new NFC core feature of iOS 13, supporting the read an write of NFC for ISO15693 tag protocol. - Encryption of all NFC bidirectional communications between an iOS Phone and an STM32 microcontroller Fast communications over NFC, using ST25DV fast transfer mode - AES and ECC cryptography - Mutual authentication between the iOS phone and the STM32 microcontroller - Establishment of a unique AES session key - Encryption can be used to retrieve data, set device settings or update the firmware securely
Screenshots
Verdict
GRCatalog and ST25DV are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | GRCatalog | ST25DV |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | โ |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 12.0 โ better | 13.4 |
| Further details โ not scored | ||
| Size | 7 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Grabba International Pty Ltd | STMicroelectronics |
In-app purchases
GRCatalog
No in-app purchases
ST25DV
No in-app purchases









