# NFC无源锁 vs smark lock

The clearest difference is update cadence: NFC无源锁 at fortnightly against smark lock's every 4 months. smark lock's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NFC无源锁 ships an update fortnightly, smark lock every 4 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | NFC无源锁 | smark lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 22 MB | 40 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Zhejiang Green Orange Information Technology Co., Ltd.](https://appshunter.io/developer/1778827258) | [震 王](https://appshunter.io/developer/1734329851) |

## What reviewers say

### NFC无源锁

[App page](https://appshunter.io/ios/app/nfc/id6738003066)

**Features:** macOS Compatibility

**In-app purchases:** none


### smark lock

[App page](https://appshunter.io/ios/app/smark-lock/id6752854176)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NFC无源锁 free?

NFC无源锁 is free to download, with no in-app purchases.

### Is smark lock free?

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

### Do NFC无源锁 or smark lock have ads?

Neither NFC无源锁 nor smark lock shows ads.

### Which is updated more often, NFC无源锁 or smark lock?

NFC无源锁 ships an update fortnightly, and smark lock every 4 months. Most recently, NFC无源锁 was updated on September 10, 2026 and smark lock on September 9, 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.*