# Surround Speaker Check vs OFA Advanced

The clearest difference is in-app purchases: OFA Advanced at none against Surround Speaker Check's 4. OFA Advanced also leads on update cadence (every 6 weeks vs every 4 months) and iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Surround Speaker Check sells 4 in-app purchases, starting at $19.99 per year. OFA Advanced asks for nothing beyond the download.

Surround Speaker Check ships an update every 4 months, OFA Advanced every 6 weeks. The most recent releases landed on September 9, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Surround Speaker Check | OFA Advanced |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (40 ratings)](https://appshunter.io/ios/app/surround-speaker-check/id1052439918/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 177 MB | 57 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Perrin Music LLC](https://appshunter.io/developer/888835926) | [Universal Electronics BV](https://appshunter.io/developer/681694493) |

## What reviewers say

### Surround Speaker Check

[App page](https://appshunter.io/ios/app/surround-speaker-check/id1052439918)

Test and optimize your Dolby Atmos home theater system. This app provides over two hours of spatial audio content to verify surround sound decoding, speaker configuration, and enjoy immersive audio experiences on compatible soundbars and headphones.

**Highlights:** Verify Dolby Atmos decoding, Test speaker configuration, Evaluate height channels, Subwoofer test suite, Manual speaker troubleshooting, Spatial audio demos, Dolby Atmos test tracks

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $19.99 | per year |
| Unlimited Access | $24.99 | per year |
| Subwoofer Check | $0.99 | one-time |
| Center Speaker Check | $0.99 | one-time |


### OFA Advanced

[App page](https://appshunter.io/ios/app/ofa-advanced/id6743192469)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Surround Speaker Check free?

Surround Speaker Check is free to download, with in-app purchases available.

### Is OFA Advanced free?

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

### Do Surround Speaker Check or OFA Advanced have ads?

Neither Surround Speaker Check nor OFA Advanced shows ads.

### Which is updated more often, Surround Speaker Check or OFA Advanced?

Surround Speaker Check ships an update every 4 months, and OFA Advanced every 6 weeks. Most recently, Surround Speaker Check was updated on September 9, 2026 and OFA Advanced on September 26, 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.*