# Oscilloscope vs Audio / Spectrum Analyzer

The clearest difference is price: Audio / Spectrum Analyzer at Free against Oscilloscope's $19.99. Audio / Spectrum Analyzer also leads on rating (4.6 vs 4.1) and update cadence (every 2 weeks vs every 8 months). Oscilloscope's advantage is in-app purchases (none vs 1) and ads (none vs shown). On review sentiment, device support and iOS requirement there is nothing between them.

Audio / Spectrum Analyzer is free to download; Oscilloscope costs $19.99 up front. Audio / Spectrum Analyzer sells 1 one-off in-app purchase. Oscilloscope asks for nothing beyond the download.

Audio / Spectrum Analyzer holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1K ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 72% of Oscilloscope's written reviews are positive against 79% of Audio / Spectrum Analyzer's.

Oscilloscope ships an update every 8 months, Audio / Spectrum Analyzer every 2 weeks. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Oscilloscope | Audio / Spectrum Analyzer |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | [4.1 (19 ratings)](https://appshunter.io/ios/app/oscilloscope/id388636804/reviews) | **[4.6 (1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** |
| Number of ratings | 19 | **1K** |
| Positive reviews | 71.7% of reviews | **78.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 5 MB |
| Requires iOS | **16** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ONYX Apps](https://appshunter.io/developer/356553882) | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) |

## What reviewers say

### Oscilloscope

[App page](https://appshunter.io/ios/app/oscilloscope/id388636804)

Analyze audio and analog signals with a portable oscilloscope. Features include waveform display, triggering controls, and a built-in signal generator for various waveforms. Supports external input for more advanced measurements.

**Highlights:** Real-time waveform display, Triggering modes, Signal measurement cursors, Built-in signal generator, Dual channel input support, Reference signal calibration, Export traces as text file

**In-app purchases:** none


### Audio / Spectrum Analyzer

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574)

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

**Highlights:** Simultaneous waveform and spectrum display, Configurable display layouts, Selectable FFT size and averaging, Frequency weighting options (Flat, dBA, dBC), Octave band analysis, Audio signal and noise generation, Peak hold and pitch meter

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Remove ads, High-Res analysis) | $11.99 | one-time |

**What reviewers like**

- 👍 Customizable features
- ⚙️ Accurate measurements
- 🚀 Helpful for troubleshooting
- 💡 Useful for ghost hunting

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔋 High battery and CPU usage
- 🚫 Inappropriate ads/content
- 🔒 Security concerns with payment info

**Reported bugs**

- Stuck on latest measurement
- White noise instead of expected functionality
- Disconnects AirPods

**Requested features**

- Sampling rate adjustment
- Wave shape tracking
- Audio file analysis
- Octave analysis


## Frequently asked questions

### Is Oscilloscope free?

Oscilloscope costs $19.99, with no in-app purchases.

### Is Audio / Spectrum Analyzer free?

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

### Which has better reviews, Oscilloscope or Audio / Spectrum Analyzer?

Audio / Spectrum Analyzer is rated higher. Oscilloscope averages 4.1 out of 5 from 19 ratings, while Audio / Spectrum Analyzer averages 4.6 from 1K ratings.

### Do Oscilloscope or Audio / Spectrum Analyzer have ads?

Audio / Spectrum Analyzer shows ads; Oscilloscope does not.

### Which is updated more often, Oscilloscope or Audio / Spectrum Analyzer?

Oscilloscope ships an update every 8 months, and Audio / Spectrum Analyzer every 2 weeks. Most recently, Oscilloscope was updated on October 15, 2026 and Audio / Spectrum Analyzer on October 17, 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.*