# Smart SynX vs Rule 20

The clearest difference is ads: Smart SynX at none against Rule 20's shown. Smart SynX also leads on iOS requirement (12.1 vs 15.1). Rule 20's advantage is update cadence (every 2 days vs every 3 months). On price, 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.

Smart SynX ships an update every 3 months, Rule 20 every 2 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Smart SynX | Rule 20 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 40 MB | 34 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BLUESEAS ENTERPRISE COMPANY LIMITED](https://appshunter.io/developer/1310380548) | [Daniil Korzh](https://appshunter.io/developer/1887070950) |

## What reviewers say

### Smart SynX

[App page](https://appshunter.io/ios/app/smart-synx/id1529065879)

Control a wide range of smart devices remotely, including lighting, security, and sensors. Monitor and manage your smart home on the go, receiving alerts and accessing camera feeds for enhanced comfort and security.

**Highlights:** Remote smart device control, Support for sensors, lighting, and security, On-the-go monitoring, Security alerts, Home camera access, IoT platform integration

**In-app purchases:** none


### Rule 20

[App page](https://appshunter.io/ios/app/rule-20-20-20/id6760965580)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart SynX free?

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

### Is Rule 20 free?

Rule 20 is free to download, with no in-app purchases.

### Do Smart SynX or Rule 20 have ads?

Rule 20 shows ads; Smart SynX does not.

### Which is updated more often, Smart SynX or Rule 20?

Smart SynX ships an update every 3 months, and Rule 20 every 2 days. Most recently, Smart SynX was updated on October 29, 2026 and Rule 20 on October 25, 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.*