# Home Theater SPL vs Delay.?

The clearest difference is price: Home Theater SPL at $0.99 against Delay.?'s $3.99. Delay.?'s advantage is chart position (#198 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Home Theater SPL costs $0.99 and Delay.? $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Home Theater SPL | Delay.? |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/home-theater-spl/id1005066204/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | — |
| Monetization | Paid | — |
| Best chart rank | — | **#198** |
| Size | 9 MB | 15 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [J.S. Technology Ltd.](https://appshunter.io/developer/586233093) | [Jeremy Horn](https://appshunter.io/developer/1828824238) |

## What reviewers say

### Home Theater SPL

[App page](https://appshunter.io/ios/app/home-theater-spl/id1005066204)

Calibrate your home theater's surround sound system without extra equipment. This app acts as a decibel meter to help you set speaker levels accurately for an optimal audio experience.

**Highlights:** Decibel meter for audio calibration, Set surround sound speaker levels, No additional equipment needed, Peak noise level indicator, Supports 5.1 and 7.1 systems

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

**In-app purchases:** none


### Delay.?

[App page](https://appshunter.io/ios/app/delay/id6749515908)

**Currently charting:** #198 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Home Theater SPL free?

Home Theater SPL costs $0.99, with no in-app purchases.

### Is Delay.? free?

Delay.? costs $3.99, with no in-app purchases.

### Do Home Theater SPL or Delay.? have ads?

Neither Home Theater SPL nor Delay.? shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*