NTAG I2C Demoboard vs Smart NFC Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NTAG I2C Demoboard
Control LED colors, measure NFC download/upload speeds, and modify chip configurations. This utility app interacts with NTAG I²C demonstration boards.
- Change LED color
- Measure NFC download/upload speed
- Read chip configuration
- Change chip configuration
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You can use it to change the LED color to light up on the NTAG I²C demonstration board, to measure the speed of download and upload with NTAG I²C based on your NFC device or to read & change the chip configuration.
Smart NFC Tools
Easily read, inspect, and modify NFC tags with this intuitive tool. Write to tags in various formats to trigger actions like opening websites or making calls. Prioritizes user privacy by operating entirely offline.
- Read NFC tag content
- Inspect and modify NFC tags
- Erase, lock, and copy tags
- Write NFC tags in various formats
- Trigger phone calls or open websites
- 100% offline operation
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Smart NFC Tools is the most accessible and easy to use NFC Reader and Writer for mobile devices! With a simple user interface and powerful tools you can interact with NDEF-Formatted NFC cards without any external hardware! - Read, Inspect and modify: Read a tag by touching the back of your device against it and Smart NFC Tools will show you a full report on the tag's content and give you options such as erase, lock and copy. It's super easy! - Write in many formats: Smart NFC Tools enables you to write NFC tags in popular formats that allow for custom interactions such as opening a website or triggering a phone call just by touching the tag with a compatible device! - Note about privacy: Smart NFC Tools works 100% offline, without any personal or content data being sent to an external server or third party server. Your privacy is our priority! Embrace the world of NFC technologies using your phone or tablet! Smart NFC Tools is now available for all iOS devices!
Screenshots
Verdict
The clearest difference is rating: Smart NFC Tools at 4.6 against NTAG I2C Demoboard's 1.0. Smart NFC Tools also leads on update cadence (weekly vs every 17 months) and ratings volume (481 vs 1). NTAG I2C Demoboard's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.6). On price, ads and device support 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. Smart NFC Tools sells 1 one-off in-app purchase. NTAG I2C Demoboard asks for nothing beyond the download.
Smart NFC Tools holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Smart NFC Tools has 481 ratings behind it against 1, so its average is the more settled of the two.
NTAG I2C Demoboard ships an update every 17 months, Smart NFC Tools weekly. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.
| Parameter | NTAG I2C Demoboard | Smart NFC Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.6 (481 ratings) — better |
| Positive reviews | — | 30.3% of reviews |
| Number of ratings | 1 | 481 — better |
| Update frequency | Every 17 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 2 MB | 35 MB |
| Age rating | 17+ | 4+ |
| Developer | MobileKnowledge | Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA. |
Customer experience
NTAG I2C Demoboard
Smart NFC Tools
Bugs and requests
NTAG I2C Demoboard
Not enough reviews yet to summarise bugs or requests.
Smart NFC Tools
Reported bugs
6 issues- Doesn't work to save contact card
- App glitches
- Doesn't work to read card and fob
- Paid for unlock, but restore doesn't work after iOS update
- Paid for ability to lock tags, but feature does not work
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- App not working after 15 minutes, even after purchase
Requested features
2 requests- Add social media to chips
- Ability to add multiple items to card after paying
In-app purchases
NTAG I2C Demoboard
No in-app purchases
Smart NFC Tools
- NFC Tools Premium$1.99
Questions
Is NTAG I2C Demoboard free?
Is Smart NFC Tools free?
Which has better reviews, NTAG I2C Demoboard or Smart NFC Tools?
Do NTAG I2C Demoboard or Smart NFC Tools have ads?
Which is updated more often, NTAG I2C Demoboard or Smart NFC Tools?
Other comparisons
