Comparison

ST25DV vs NFC Reader & Writer

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

Head to head
About

ST25DV

Read full description

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

About

NFC Reader & Writer

This app transforms your iPhone into a comprehensive NFC toolkit. Easily scan and decode various NFC tag types, then write your own custom tags with templates. It also offers advanced insights into tag data and history tracking.

Highlights
  • Read NDEF tags (Text, URL, Wi-Fi, etc.)
  • Advanced tag insights (security, memory)
  • Write custom tags from templates
  • Quick actions for tag management
  • Tag history logging and export
  • NFC compatibility check
Features
Read full description

NFC Reader & Writer turns your phone into a complete NFC toolkit. Hold it near a tag to see exactly what is stored on it, then write your own tags in seconds. READ NDEF TAGS • Tag contents appear the moment your phone touches it • Text, URL, Wi-Fi, Bluetooth, vCard, email, SMS, phone number, address, app and location records • Run an action straight from the record you scanned ADVANCED TAG INSIGHTS • Security analysis with the tag's security flags • Memory breakdown — used, free and total capacity • NDEF decoder with a plain-language summary of every record • Raw data in HEX and ASCII for advanced users WRITE YOUR OWN TAGS • Build a tag from templates: text, URL, Google search, Wi-Fi, Bluetooth, vCard, email, SMS, phone, address, location and custom URL • Add several records to one tag before you write it QUICK ACTIONS ON IPHONE • Open the Quick Actions tab for one-tap access: Copy Tag, Copy Tag to Infinity, Erase Tag, Lock Tag (Read-Only) and Automations • Erase Tag wipes a tag so you can reuse it, after a confirmation • Lock Tag makes a tag permanently read-only (write-protect), after a confirmation. This is a Pro feature TAG HISTORY • Every scan is saved with its time and record count • Reopen, share or delete any entry • Export your history to CSV NFC COMPATIBILITY CHECK • Detect whether your device has NFC hardware • Check whether NFC reading is available on your iPhone • Verify read and write capability USEFUL EXTRAS • Device information at a glance • One-tap shortcuts to your system settings • Tools: compass, battery, flashlight and screen light • Dark mode • Available in 14 languages SUPPORTED TAGS ON IPHONE • Reads NDEF data on NFC Forum Type 1–5 tags: ISO 14443 (NTAG, MIFARE Ultralight, MIFARE DESFire), ISO 15693 (ICODE) and FeliCa • Writes to tags that are NDEF-formatted and not locked • iPhone cannot read MIFARE Classic, tags that are not NDEF-formatted, or bank, transit and ID cards WHAT YOU NEED 1. iPhone 7 or newer, on iOS 15 or later 2. Nothing to switch on: NFC on iPhone is always ready Free to use, supported by ads. An optional Pro upgrade removes ads and unlocks unlimited Advanced Tag Insights and Lock Tag, available monthly, yearly or as a one-time purchase. Questions or a problem? Write to support@yalintech.com and we will help. Privacy Policy: https://yalintech.com/legal/nfc/privacy Terms of Service: https://yalintech.com/legal/nfc/terms

Screenshots

ST25DV4 screens
NFC Reader & Writer4 screens

Verdict

The call

The clearest difference is in-app purchases: ST25DV at none against NFC Reader & Writer's 5. ST25DV also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.0). NFC Reader & Writer's advantage is device support (4 vs 2). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NFC Reader & Writer sells 5 in-app purchases, starting at $4.99 per month. ST25DV asks for nothing beyond the download.

Scorecard4 real differences · 6 level
ST25DV versus NFC Reader & Writer: the parameters behind the verdict, then further details
ParameterST25DVNFC Reader & Writer
PriceFreeFree
Rating—4.0 (106 ratings) — better
Positive reviews—13.3% of reviews
Number of ratings—106 — better
Update frequency—Fortnightly
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.4 — better15.0
Further details — not scored
Size22 MB37 MB
Age rating4+4+
DeveloperSTMicroelectronicsYalintech

In-app purchases

None

ST25DV

No in-app purchases

5 purchases

NFC Reader & Writer

Subscriptions3
  • Monthly Subscription3 Days trial$4.991 Month
  • Yearly Subscription3 Days trial$7.991 Year
  • Yearly Subscription3 Days trial$14.991 Year
One-time2
  • One time purchase$10.99
  • One time purchase$24.99

Questions

Is ST25DV free?
ST25DV is free to download, with no in-app purchases.
Is NFC Reader & Writer free?
NFC Reader & Writer is free to download, with in-app purchases available.
Do ST25DV or NFC Reader & Writer have ads?
NFC Reader & Writer shows ads; ST25DV does not.

Other comparisons