# LSP 500 PRO vs Time Delay calculator

The clearest difference is ads: LSP 500 PRO at none against Time Delay calculator's shown. LSP 500 PRO also leads on iOS requirement (8.0 vs 15.8.3). Time Delay calculator's advantage is update cadence (fortnightly vs every 6 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LSP 500 PRO ships an update every 6 months, Time Delay calculator fortnightly. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | LSP 500 PRO | Time Delay calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lsp-500-pro/id659392553/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 19 MB | 36 MB |
| Requires iOS | **8.0** | 15.8.3 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sennheiser electronic SE & Co. KG](https://appshunter.io/developer/497966443) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### LSP 500 PRO

[App page](https://appshunter.io/ios/app/lsp-500-pro/id659392553)

This app transforms your iPad into a mobile mixing console for the Sennheiser LSP 500 PRO wireless PA system. Remotely control and configure up to 20 sound systems simultaneously over a wireless network. It offers an intuitive interface for managing all functions and inputs, with a demo mode for testing.

**Highlights:** Mobile mixing console for iPad, Remote control of LSP 500 PRO, Configure up to 20 sound systems, Wireless WLAN communication, Intuitive interface, Demo mode for testing

**In-app purchases:** none


### Time Delay calculator

[App page](https://appshunter.io/ios/app/time-delay-calculator/id6502032872)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LSP 500 PRO free?

LSP 500 PRO is free to download, with no in-app purchases.

### Is Time Delay calculator free?

Time Delay calculator is free to download, with no in-app purchases.

### Do LSP 500 PRO or Time Delay calculator have ads?

Time Delay calculator shows ads; LSP 500 PRO does not.

### Which is updated more often, LSP 500 PRO or Time Delay calculator?

LSP 500 PRO ships an update every 6 months, and Time Delay calculator fortnightly. Most recently, LSP 500 PRO was updated on October 15, 2026 and Time Delay calculator on October 25, 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.*