# On Stage Studio vs Spectrum Analyzer

The clearest difference is in-app purchases: On Stage Studio at none against Spectrum Analyzer's 2. On Stage Studio also leads on iOS requirement (13.4 vs 17.6). Spectrum Analyzer's advantage is ads (none vs shown) and update cadence (monthly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Spectrum Analyzer sells 2 in-app purchases, starting at $4.99 per 7 days. On Stage Studio asks for nothing beyond the download.

On Stage Studio ships an update every 3 months, Spectrum Analyzer monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | On Stage Studio | Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-audio-rta/id6781270627/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 21 MB |
| Requires iOS | **13.4** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hoi Fan Soong](https://appshunter.io/developer/1482485151) | [brian koech](https://appshunter.io/developer/1853281007) |

## What reviewers say

### On Stage Studio

[App page](https://appshunter.io/ios/app/on-stage-studio/id6749031764)

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

**In-app purchases:** none


### Spectrum Analyzer

[App page](https://appshunter.io/ios/app/spectrum-analyzer-audio-rta/id6781270627)

Visualize sound frequencies, waveforms, and spectral activity in real-time using your device's microphone. Analyze audio for tuning, testing, music, or exploring ambient sounds with clear visual representations.

**Highlights:** Real-time audio spectrum analysis, FFT frequency analysis, Live spectrogram visualization, Audio waveform display, Frequency and amplitude monitoring, Microphone-based sound analysis

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro weekly | $4.99 | per 7 days |
| pro annual | $29.99 | per year |


## Frequently asked questions

### Is On Stage Studio free?

On Stage Studio is free to download, with no in-app purchases.

### Is Spectrum Analyzer free?

Spectrum Analyzer is free to download, with in-app purchases available.

### Do On Stage Studio or Spectrum Analyzer have ads?

On Stage Studio shows ads; Spectrum Analyzer does not.

### Which is updated more often, On Stage Studio or Spectrum Analyzer?

On Stage Studio ships an update every 3 months, and Spectrum Analyzer monthly. Most recently, On Stage Studio was updated on October 30, 2026 and Spectrum Analyzer on October 31, 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.*