NFC TagKit vs CalculatorHex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NFC TagKit
This app allows you to read and write data to various types of RFID tags. It can display detailed information about transponders and supports creating and writing NDEF records on MIFARE® DESFire® tags.
- Read transponder information (type, manufacturer, serial number)
- Display NDEF record data (URL, text, contact)
- Read data from MIFARE® DESFire® tags
- Write files and NDEF records on MIFARE® DESFire® tags
- Supports various tag types (MIFARE, Ntag, FeliCa, ISO)
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NFCTagKit is an application for working with RFID tags. It provides such functions as reading different kinds of transponders and writing on MIFARE® DESFire® tags. Activating a reading function of the application displays all necessary information about the transponders: • tag type and manufacturer • technologies • serial number • total memory size • filled data volume • etc. Besides that, there is all the information about NDEF records and all the data on the card for such formats as • URL • text message • contact information • etc. One of the key advantages is reading the data from MIFARE® DESFire® transponders, including applications, files, and keys. Activating a writing function of the app grants the possibility to use the demo of the CoreWillSoft GmbH solution. The users can create and write files on the MIFARE® DESFire® tags and make different types of NDEF records. The NFCTagKit App supports such types of tags, as: • MIFARE® DESFire® EV1 • MIFARE® DESFire® EV2 • MIFARE® Ultralight® • MIFARE® Ultralight® C • MIFARE® Ultralight® EV1 • Ntag 213 • Ntag 215 • ISO15693 • FeliCa • ISO7816 (ISO14443-4 type A / B tag with ISO7816 communication protocol) The full functionality of our solution is available for ordering on the CoreWillSoft GmbH website. We are providing the decisions for all kinds of businesses that use RFID technologies and mobile identification.
CalculatorHex
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CalculatorHex is the complete hexadecimal calculator and developer toolkit — 35+ tools for hex, decimal, binary, octal, color, and encoding conversions, all running locally on your device. Whether you're a software developer, computer science student, embedded systems engineer, or just need a reliable hex converter, CalculatorHex covers every calculation you need in one app. BASE CONVERSION - Hex to Decimal, Decimal to Hex, Hex to Binary, Binary to Hex, Hex to Octal, Octal to Hex — all live and bidirectional in one screen - Hex to Signed Integer / Two's Complement calculator (8-bit, 16-bit, 32-bit, 64-bit) - Hex to Base12, Base32, Base36, and Base64 converter - Little Endian Hex to Decimal converter (byte order reversal) - Arbitrary-precision math — convert extremely large hex or decimal numbers with exact results, no rounding errors ARITHMETIC AND BITWISE CALCULATOR - Hex Arithmetic Calculator: add, subtract, multiply, and divide hex values directly - Bitwise Calculator: AND, OR, XOR, NOT operations on hex numbers - Bit Shift Calculator: left shift, right shift, unsigned right shift - Hex Compare and Diff tool with Hamming distance and bit-grid visualization - Two's Complement Calculator with step-by-step explanation - Hex CRC-32 Checksum Calculator ENCODING TOOLS - Hex to ASCII and ASCII to Hex converter - Hex to UTF-8 and UTF-8 to Hex converter - Hex to EBCDIC converter (full CP037 table) - Decimal to BCD (Binary-Coded Decimal) converter - Complete ASCII Table reference, searchable by decimal, hex, or character COLOR CONVERTER TOOLS - Hex to RGB and RGB to Hex color converter - Hex to RGBA (with alpha channel) - Hex to HSL and Hex to HSV color converter - Hex to CMYK converter - Hex to UIColor (Swift/SwiftUI code) - Hex to Tailwind CSS color name matcher - Tint and Shade generator (9-step palette) - Color Difference calculator (Delta-E) - Color Palette Generator with PDF export — complementary, triadic, analogous, monochromatic - Web-Safe Colors reference (216 colors) DEVELOPER AND PROGRAMMING TOOLS - Hex to IP Address converter - Hex to 7-Segment Display encoder - UUID / GUID v4 Generator - Hash and Checksum Calculator: MD5, SHA-1, SHA-256 - Hex-to-Int code snippet generator for C#, Python, JavaScript, and Java - Binary Prefixes converter (SI and IEC units — KB vs KiB, MB vs MiB) WHY CALCULATORHEX - 35+ calculators and converters in a single app - Fast, clean, distraction-free interface - Works fully offline once installed — no internet connection required for any calculation - Arbitrary-precision arithmetic — accurate even with very large numbers - Built for hex, binary, octal, decimal, and color work across programming, electronics, networking, and design CalculatorHex is the hex calculator, binary converter, color converter, checksum calculator, and bitwise calculator developers reach for again and again. Download now and keep every hex tool you need in your pocket. Contains ads.
Screenshots
Verdict
The clearest difference is ads: NFC TagKit at none against CalculatorHex's shown. On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | NFC TagKit | CalculatorHex |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | CoreWillSoft GmbH | Ultrya Design SRL |
In-app purchases
NFC TagKit
No in-app purchases
CalculatorHex
No in-app purchases
Questions
Is NFC TagKit free?
Is CalculatorHex free?
Do NFC TagKit or CalculatorHex have ads?
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