# King Sound vs Smart Firelog

The clearest difference is update cadence: Smart Firelog at daily against King Sound's every 22 months. King Sound's advantage is iOS requirement (9.0 vs 17.0). 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.

King Sound ships an update every 22 months, Smart Firelog daily. The most recent releases landed on September 8, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | King Sound | Smart Firelog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Daily** |
| Size | 19 MB | 6 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Waytronic Electronics Company Limited](https://appshunter.io/developer/1103554270) | [monitored247](https://appshunter.io/developer/1749633983) |

## What reviewers say

### King Sound

[App page](https://appshunter.io/ios/app/king-sound/id1437709752)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Firelog

[App page](https://appshunter.io/ios/app/smart-firelog/id6761857541)

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

**In-app purchases:** none


## Frequently asked questions

### Is King Sound free?

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

### Is Smart Firelog free?

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

### Do King Sound or Smart Firelog have ads?

Neither King Sound nor Smart Firelog shows ads.

### Which is updated more often, King Sound or Smart Firelog?

King Sound ships an update every 22 months, and Smart Firelog daily. Most recently, King Sound was updated on September 8, 2026 and Smart Firelog on May 16, 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.*