# HiONE+(HiONE Plus) vs Scent Tech

The clearest difference is review sentiment: Scent Tech at 14% against HiONE+(HiONE Plus)'s 0%. HiONE+(HiONE Plus)'s advantage is update cadence (every 3 weeks vs every 6 weeks). 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.

HiONE+(HiONE Plus) ships an update every 3 weeks, Scent Tech every 6 weeks. The most recent releases landed on September 1, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | HiONE+(HiONE Plus) | Scent Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.2 (63 ratings)](https://appshunter.io/ios/app/scent-tech/id1662466433/reviews)** |
| Number of ratings | — | **63** |
| Positive reviews | 0.0% of reviews | **13.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 63 MB | 47 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DaeSu Ha](https://appshunter.io/developer/1071607859) | [俊 谢](https://appshunter.io/developer/1440271932) |

## What reviewers say

### HiONE+(HiONE Plus)

[App page](https://appshunter.io/ios/app/hione-plus-hione-plus/id1548106950)

Control and access various doors remotely or via short-distance connection using your smartphone. Gain entry without needing to sign up for membership or log in.

**Highlights:** Remote door control, Short-distance door access, Smartphone entry, No signup required, Bluetooth and network connectivity

**Features:** Vision Pro support

**In-app purchases:** none


### Scent Tech

[App page](https://appshunter.io/ios/app/scent-tech/id1662466433)

Control your scent machine remotely with this app. It offers automatic mode selection for various scenarios and allows for batch management of devices through customizable groups.

**Highlights:** Scent machine control, Automatic mode selection, Device grouping, Batch management, Customizable group names

**In-app purchases:** none


## Frequently asked questions

### Is HiONE+(HiONE Plus) free?

HiONE+(HiONE Plus) is free to download, with no in-app purchases.

### Is Scent Tech free?

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

### Do HiONE+(HiONE Plus) or Scent Tech have ads?

Neither HiONE+(HiONE Plus) nor Scent Tech shows ads.

### Which is updated more often, HiONE+(HiONE Plus) or Scent Tech?

HiONE+(HiONE Plus) ships an update every 3 weeks, and Scent Tech every 6 weeks. Most recently, HiONE+(HiONE Plus) was updated on September 1, 2026 and Scent Tech on September 17, 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.*