# Lightning Headset Test vs KeyStage

The clearest difference is price: Lightning Headset Test at Free against KeyStage's $29.99. Lightning Headset Test also leads on in-app purchases (none vs 7) and device support (3 vs 1). KeyStage's advantage is update cadence (every 3 months vs every 7 months). On ads there is nothing between them.

Lightning Headset Test is free to download; KeyStage costs $29.99 up front. KeyStage sells 7 one-off in-app purchases. Lightning Headset Test asks for nothing beyond the download.

Lightning Headset Test ships an update every 7 months, KeyStage every 3 months. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Lightning Headset Test | KeyStage |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Rating | — | **[4.7 (37 ratings)](https://appshunter.io/ios/app/keystage/id1406132634/reviews)** |
| Number of ratings | — | **37** |
| Positive reviews | — | 91.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 61 MB |
| Requires iOS | **9.3** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Crysound Electronics Co., Ltd.](https://appshunter.io/developer/1204067982) | [Ali Gokturk](https://appshunter.io/developer/1406132633) |

## What reviewers say

### Lightning Headset Test

[App page](https://appshunter.io/ios/app/lightning-headset-test/id1204067983)

**Features:** macOS Compatibility

**In-app purchases:** none


### KeyStage

[App page](https://appshunter.io/ios/app/keystage/id1406132634)

This app acts as a master controller, AUv3 host, and audio mixer for keyboard players. It allows simultaneous control of multiple hardware and software instruments via MIDI, with advanced mapping, scripting, and audio mixing capabilities.

**Highlights:** Connect multiple MIDI controllers to instruments, Load AUv3 instruments, effects, and MIDI processors, Create complex keyboard splits and layers, Advanced MIDI mapping and scripting, Audio mixer with volume and pan control, Play and automate audio files, View PDF and JPG files

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Instrument Units | Free | one-time |
| Effect Units | Free | one-time |
| Player, Input, and Mixer Units | Free | one-time |
| MIDI Units | Free | one-time |
| Small Tip | $0.99 | one-time |
| Medium Tip | $3.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Lightning Headset Test free?

Lightning Headset Test is free to download, with no in-app purchases.

### Is KeyStage free?

KeyStage costs $29.99, and also offers in-app purchases.

### Do Lightning Headset Test or KeyStage have ads?

Neither Lightning Headset Test nor KeyStage shows ads.

### Which is updated more often, Lightning Headset Test or KeyStage?

Lightning Headset Test ships an update every 7 months, and KeyStage every 3 months. Most recently, Lightning Headset Test was updated on September 10, 2026 and KeyStage on September 18, 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.*