# Optios vs Scentech

The clearest difference is update cadence: Scentech at daily against Optios's every 2 months. Optios's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Optios ships an update every 2 months, Scentech daily. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Optios | Scentech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Size | 18 MB | 44 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Optios](https://appshunter.io/developer/1077374726) | [Scentech](https://appshunter.io/developer/1825553878) |

## What reviewers say

### Optios

[App page](https://appshunter.io/ios/app/optios/id6447364622)

**Features:** macOS Compatibility

**In-app purchases:** none


### Scentech

[App page](https://appshunter.io/ios/app/scentech/id6748377067)

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

**In-app purchases:** none


## Frequently asked questions

### Is Optios free?

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

### Is Scentech free?

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

### Do Optios or Scentech have ads?

Neither Optios nor Scentech shows ads.

### Which is updated more often, Optios or Scentech?

Optios ships an update every 2 months, and Scentech daily. Most recently, Optios was updated on September 16, 2026 and Scentech on September 21, 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.*