# One vs Smart RM

The clearest difference is review sentiment: Smart RM at 64% against One's 13%. One's advantage is update cadence (every 5 months vs every 18 months). On price, ads, in-app purchases and monetization model 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, Smart RM every 18 months. The most recent releases landed on October 6, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | One | Smart RM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (60 ratings)](https://appshunter.io/ios/app/smart-rm/id1437258955/reviews)** |
| Number of ratings | — | **60** |
| Positive reviews | 12.5% of reviews | **64.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 18 months |
| Monetization | Free | Free |
| Size | 49 MB | 208 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NTT DATA GROUP CORPORATION](https://appshunter.io/developer/478236616) | [Xiamen Haisen Electronics Technology Co.,Ltd.](https://appshunter.io/developer/1367405711) |

## 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


### Smart RM

[App page](https://appshunter.io/ios/app/smart-rm/id1437258955)

Control your smart home devices remotely for enhanced comfort and energy savings. Experience a personalized smart living environment from anywhere.

**Highlights:** Remote device control, Energy saving features, Personalized smart life experience, Comfort management, Anywhere access

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One free?

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

### Is Smart RM free?

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

### Do One or Smart RM have ads?

Neither One nor Smart RM shows ads.

### Which is updated more often, One or Smart RM?

One ships an update every 5 months, and Smart RM every 18 months. Most recently, One was updated on October 6, 2026 and Smart RM on October 22, 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.*