# OnOff for NFC Drives vs SecretShield

The clearest difference is in-app purchases: OnOff for NFC Drives at none against SecretShield's 4. OnOff for NFC Drives also leads on iOS requirement (14.0 vs 17.0). SecretShield's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. SecretShield sells 4 in-app purchases, starting at $19.99 per month. OnOff for NFC Drives asks for nothing beyond the download.

OnOff for NFC Drives ships an update every 3 months, SecretShield every 3 weeks. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | OnOff for NFC Drives | SecretShield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onoff-for-nfc-drives/id6446581764/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 13 MB | 38 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LIANG HSIN CHEN](https://appshunter.io/developer/1678272117) | [Secret Shield Inc.](https://appshunter.io/developer/1765046506) |

## What reviewers say

### OnOff for NFC Drives

[App page](https://appshunter.io/ios/app/onoff-for-nfc-drives/id6446581764)

Securely lock and unlock USB drives with a simple tap of your NFC-enabled smartphone. Protect your data on the go with this easy-to-use utility, offering custom profiles and broad USB drive compatibility.

**Highlights:** NFC drive locking and unlocking, Data security on the go, Customizable drive profiles, User-friendly interface, Wide USB drive compatibility, Lightweight and no extra hardware needed

**In-app purchases:** none


### SecretShield

[App page](https://appshunter.io/ios/app/secretshield/id6670149348)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $19.99 | per month |
| Inheritance | $49.99 | per month |
| Basic | $199.00 | per year |
| Inheritance | $499.00 | per year |


## Frequently asked questions

### Is OnOff for NFC Drives free?

OnOff for NFC Drives is free to download, with no in-app purchases.

### Is SecretShield free?

SecretShield is free to download, with in-app purchases available.

### Do OnOff for NFC Drives or SecretShield have ads?

Neither OnOff for NFC Drives nor SecretShield shows ads.

### Which is updated more often, OnOff for NFC Drives or SecretShield?

OnOff for NFC Drives ships an update every 3 months, and SecretShield every 3 weeks. Most recently, OnOff for NFC Drives was updated on October 10, 2026 and SecretShield on October 4, 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.*