# HCSiSD vs BuzziSpace RT60

The clearest difference is price: BuzziSpace RT60 at Free against HCSiSD's $0.99. HCSiSD's advantage is update cadence (every 5 weeks vs every 4 months) and iOS requirement (12.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

BuzziSpace RT60 is free to download; HCSiSD costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HCSiSD ships an update every 5 weeks, BuzziSpace RT60 every 4 months. The most recent releases landed on May 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | HCSiSD | BuzziSpace RT60 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[2.7 (3 ratings)](https://appshunter.io/ios/app/buzzispace-rt60/id1613535156/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | — | Free |
| Size | 11 MB | 40 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [lagommette](https://appshunter.io/developer/467184538) | [BuzziSpace](https://appshunter.io/developer/1613535158) |

## What reviewers say

### HCSiSD

[App page](https://appshunter.io/ios/app/hcsisd/id1106087229)

**Features:** macOS Compatibility

**In-app purchases:** none


### BuzziSpace RT60

[App page](https://appshunter.io/ios/app/buzzispace-rt60/id1613535156)

This tool measures room reverberation times and simulates the effect of acoustic products. It helps determine the number of acoustic elements needed to improve room acoustics. The app organizes acoustic solutions by category for easier product selection.

**Highlights:** Measures reverberation times, Simulates acoustic product impact, Calculates required acoustic elements, Organized product catalog by category, How-to video guide

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HCSiSD free?

HCSiSD costs $0.99, with no in-app purchases.

### Is BuzziSpace RT60 free?

BuzziSpace RT60 is free to download, with no in-app purchases.

### Do HCSiSD or BuzziSpace RT60 have ads?

Neither HCSiSD nor BuzziSpace RT60 shows ads.

### Which is updated more often, HCSiSD or BuzziSpace RT60?

HCSiSD ships an update every 5 weeks, and BuzziSpace RT60 every 4 months. Most recently, HCSiSD was updated on May 17, 2026 and BuzziSpace RT60 on September 13, 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.*