# One vs HENNGE Lock

The clearest difference is update cadence: HENNGE Lock at every 2 months against One's every 5 months. One's advantage is iOS requirement (14.0 vs 17.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

One ships an update every 5 months, HENNGE Lock every 2 months. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | One | HENNGE Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (4 ratings)](https://appshunter.io/ios/app/hennge-lock/id1457679156/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 12.5% of reviews | **16.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 49 MB | 14 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [NTT DATA GROUP CORPORATION](https://appshunter.io/developer/478236616) | [HENNGE K.K.](https://appshunter.io/developer/571240331) |

## What reviewers say

### One

[App page](https://appshunter.io/ios/app/one-time-password/id1028958661)

This utility generates a secure, eight-digit disposable password every minute. These one-time passwords are ideal for enhancing security across various online services, as they become invalid after a short period, even if compromised.

**Highlights:** Generates eight-digit passwords, Passwords valid for one minute, Enhances online service security, Disposable password functionality, Requires OTP application at service

**Features:** Vision Pro support

**In-app purchases:** none


### HENNGE Lock

[App page](https://appshunter.io/ios/app/hennge-lock/id1457679156)

This app offers One Time Password generation for secure second-factor authentication on compatible websites and services. It also provides enhanced security for specific cloud services, ensuring a smooth and protected login process.

**Highlights:** One Time Password (OTP) generation, Second Factor Authentication (2FA), Secure login for compatible services, Enhanced security for HENNGE One, Seamless authentication experience

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One free?

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

### Is HENNGE Lock free?

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

### Do One or HENNGE Lock have ads?

Neither One nor HENNGE Lock shows ads.

### Which is updated more often, One or HENNGE Lock?

One ships an update every 5 months, and HENNGE Lock every 2 months. Most recently, One was updated on October 6, 2026 and HENNGE Lock on October 24, 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.*