# Surround Speaker Check vs Tempus World Clock

The clearest difference is review sentiment: Tempus World Clock at 100% against Surround Speaker Check's 54%. Tempus World Clock also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 4). Surround Speaker Check's advantage is price (Free vs $1.99) and ratings volume (41 vs 1). On ads, device support and iOS requirement there is nothing between them.

Surround Speaker Check is free to download; Tempus World Clock costs $1.99 up front. Surround Speaker Check sells 4 in-app purchases, starting at $19.99 per year. Tempus World Clock asks for nothing beyond the download.

Tempus World Clock holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Surround Speaker Check has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 54% of Surround Speaker Check's written reviews are positive against 100% of Tempus World Clock's.

Surround Speaker Check ships an update every 5 months, Tempus World Clock every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Surround Speaker Check | Tempus World Clock |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.8 (41 ratings)](https://appshunter.io/ios/app/surround-speaker-check/id1052439918/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tempus-world-clock/id6757654219/reviews)** |
| Number of ratings | **41** | 1 |
| Positive reviews | 54.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 180 MB | 61 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Perrin Music LLC](https://appshunter.io/developer/888835926) | [Viktor Gamov](https://appshunter.io/developer/1868107656) |

## 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 |


### Tempus World Clock

[App page](https://appshunter.io/ios/app/tempus-world-clock/id6757654219)

Easily track multiple time zones with customizable clocks for people and places. Convert times instantly, find optimal meeting slots across different regions, and view city details including weather and sunrise/sunset.

**Highlights:** Customizable clocks with names and colors, Instant time conversion across zones, Meeting time finder with working hours, City detail view with weather and sunrise/sunset, Apple Watch app and complications, Home Screen widgets, iCloud sync across devices

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**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 Tempus World Clock free?

Tempus World Clock costs $1.99, with no in-app purchases.

### Which has better reviews, Surround Speaker Check or Tempus World Clock?

Tempus World Clock is rated higher. Surround Speaker Check averages 3.8 out of 5 from 41 ratings, while Tempus World Clock averages 5.0 from 1 ratings.

### Do Surround Speaker Check or Tempus World Clock have ads?

Neither Surround Speaker Check nor Tempus World Clock shows ads.

### Which is updated more often, Surround Speaker Check or Tempus World Clock?

Surround Speaker Check ships an update every 5 months, and Tempus World Clock every 10 days. Most recently, Surround Speaker Check was updated on October 24, 2026 and Tempus World Clock on October 24, 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.*