# Scent System vs VIVA Plus+

The clearest difference is rating: VIVA Plus+ at 2.8 against Scent System's 1.0. VIVA Plus+ also leads on ratings volume (10 vs 1). Scent System's advantage is update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (9.0 vs 15.6). 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.

VIVA Plus+ holds the better App Store score, 2.8 against 1.0. That said, the two scores are not equally well evidenced: VIVA Plus+ has 10 ratings behind it against 1, so its average is the more settled of the two.

Scent System ships an update every 2 weeks, VIVA Plus+ every 6 weeks. The most recent releases landed on September 11, 2026 and July 30, 2026 respectively.

## The numbers

| Metric | Scent System | VIVA Plus+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/scent-system/id1479815198/reviews) | **[2.8 (10 ratings)](https://appshunter.io/ios/app/viva-plus-plus/id1590123196/reviews)** |
| Number of ratings | 1 | **10** |
| Positive reviews | — | 57.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 25 MB | 74 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Guangzhou Lanmei Computer Technology Co., Ltd.](https://appshunter.io/developer/989104097) | [VIVA Premiere Investment LLC](https://appshunter.io/developer/1590123198) |

## What reviewers say

### Scent System

[App page](https://appshunter.io/ios/app/scent-system/id1479815198)

Control your smart fragrance diffuser remotely. Schedule its operation, manage power-off modes, and register new users. This app also facilitates binding smart home appliances via LAN scanning.

**Highlights:** Remote fragrance machine control, Scheduling fragrance machine operation, Safe power-off mode control, Smart home appliance binding, User registration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### VIVA Plus+

[App page](https://appshunter.io/ios/app/viva-plus-plus/id1590123196)

This lifestyle app provides supermarket members with access to exclusive rewards, coupons, and upcoming discounts. It also features a store locator and digital receipts for a convenient shopping experience.

**Highlights:** Exclusive rewards program, Digital coupons, Upcoming offers and discounts, Store locator, Digital receipts

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Scent System free?

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

### Is VIVA Plus+ free?

VIVA Plus+ is free to download, with no in-app purchases.

### Which has better reviews, Scent System or VIVA Plus+?

VIVA Plus+ is rated higher. Scent System averages 1.0 out of 5 from 1 ratings, while VIVA Plus+ averages 2.8 from 10 ratings.

### Do Scent System or VIVA Plus+ have ads?

Neither Scent System nor VIVA Plus+ shows ads.

### Which is updated more often, Scent System or VIVA Plus+?

Scent System ships an update every 2 weeks, and VIVA Plus+ every 6 weeks. Most recently, Scent System was updated on September 11, 2026 and VIVA Plus+ on July 30, 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.*