# KeepWaves vs Spectrum Analyzer

The clearest difference is rating: KeepWaves at 5.0 against Spectrum Analyzer's 1.0. KeepWaves also leads on in-app purchases (none vs 2) and iOS requirement (15.0 vs 17.6). Spectrum Analyzer's advantage is update cadence (monthly vs every 19 months). On price, ratings volume, ads 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. KeepWaves asks for nothing beyond the download.

KeepWaves holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

KeepWaves ships an update every 19 months, Spectrum Analyzer monthly. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | KeepWaves | Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keepwaves/id6742164032/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-audio-rta/id6781270627/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 21 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arla Services](https://appshunter.io/developer/1793706092) | [brian koech](https://appshunter.io/developer/1853281007) |

## What reviewers say

### KeepWaves

[App page](https://appshunter.io/ios/app/keepwaves/id6742164032)

Transform audio recordings into visual art with customizable waveform visualizations. Capture high-quality sound, apply effects, and share your unique acoustic memories as audio, images, or videos. Preserve precious sounds in a way that engages both sight and hearing.

**Highlights:** Customizable waveform visualizations, High-quality audio recording, Real-time visualization, Advanced audio processing, Multiple export options (audio, image, video), Intuitive organization and search, Interactive playback

**Features:** macOS Compatibility, 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 KeepWaves free?

KeepWaves is free to download, with no in-app purchases.

### Is Spectrum Analyzer free?

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

### Which has better reviews, KeepWaves or Spectrum Analyzer?

KeepWaves is rated higher. KeepWaves averages 5.0 out of 5 from 1 ratings, while Spectrum Analyzer averages 1.0 from 1 ratings.

### Do KeepWaves or Spectrum Analyzer have ads?

Neither KeepWaves nor Spectrum Analyzer shows ads.

### Which is updated more often, KeepWaves or Spectrum Analyzer?

KeepWaves ships an update every 19 months, and Spectrum Analyzer monthly. Most recently, KeepWaves was updated on October 13, 2026 and 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.*