# ZKBioBT vs Smart NFC Tools

The clearest difference is rating: Smart NFC Tools at 4.6 against ZKBioBT's 2.9. Smart NFC Tools also leads on update cadence (weekly vs every 6 months) and review sentiment (30% vs 8%). ZKBioBT's advantage is in-app purchases (none vs 1) and iOS requirement (7.1 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Smart NFC Tools sells 1 one-off in-app purchase. ZKBioBT asks for nothing beyond the download.

Smart NFC Tools holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: Smart NFC Tools has 480 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 8% of ZKBioBT's written reviews are positive against 30% of Smart NFC Tools's.

ZKBioBT ships an update every 6 months, Smart NFC Tools weekly. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ZKBioBT | Smart NFC Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (10 ratings)](https://appshunter.io/ios/app/zkbiobt/id1024420828/reviews) | **[4.6 (480 ratings)](https://appshunter.io/ios/app/smart-nfc-tools-read-and-write/id1527587931/reviews)** |
| Number of ratings | 10 | **480** |
| Positive reviews | 8.3% of reviews | **30.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 35 MB |
| Requires iOS | **7.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZKTeco Inc.](https://appshunter.io/developer/955313767) | [Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.](https://appshunter.io/developer/867175889) |

## What reviewers say

### ZKBioBT

[App page](https://appshunter.io/ios/app/zkbiobt/id1024420828)

This utility app transforms your mobile device into a digital key for unlocking doors and managing user access. You can easily add, edit, or delete users and their privileges, as well as check lock transaction history. The app also allows for flexible setting of door opening durations.

**Highlights:** Mobile door unlocking, User management (add, edit, delete), Lock transaction check, Flexible open-door duration setting, Supports specific ZKTeco device models

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart NFC Tools

[App page](https://appshunter.io/ios/app/smart-nfc-tools-read-and-write/id1527587931)

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.

**Highlights:** 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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NFC Tools Premium | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 💰 Reasonable price
- 🚀 Works great
- 👍 Very practical
- 👍 Excellent app

**What reviewers complain about**

- 👎 Does not work
- 👎 Waste of money
- 👎 Free version limited
- 👎 Scam and money taken
- 👎 Paid and no function

**Reported bugs**

- 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

**Requested features**

- Add social media to chips
- Ability to add multiple items to card after paying


## Frequently asked questions

### Is ZKBioBT free?

ZKBioBT is free to download, with no in-app purchases.

### Is Smart NFC Tools free?

Smart NFC Tools is free to download, with in-app purchases available.

### Which has better reviews, ZKBioBT or Smart NFC Tools?

Smart NFC Tools is rated higher. ZKBioBT averages 2.9 out of 5 from 10 ratings, while Smart NFC Tools averages 4.6 from 480 ratings.

### Do ZKBioBT or Smart NFC Tools have ads?

Neither ZKBioBT nor Smart NFC Tools shows ads.

### Which is updated more often, ZKBioBT or Smart NFC Tools?

ZKBioBT ships an update every 6 months, and Smart NFC Tools weekly. Most recently, ZKBioBT was updated on October 24, 2026 and Smart NFC Tools on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*