# SpectrumView vs Radiacode

The clearest difference is rating: Radiacode at 4.2 against SpectrumView's 3.1. Radiacode also leads on in-app purchases (none vs 7) and update cadence (every 2 months vs every 10 months). SpectrumView's advantage is iOS requirement (9.0 vs 17.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. SpectrumView sells 7 one-off in-app purchases. Radiacode asks for nothing beyond the download.

Radiacode holds the better App Store score, 4.2 against 3.1. Both are backed by a comparable volume of ratings — 74 and 93 respectively. Written reviews split almost evenly too, at 63% and 63% positive.

SpectrumView ships an update every 10 months, Radiacode every 2 months. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | SpectrumView | Radiacode |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (74 ratings)](https://appshunter.io/ios/app/spectrumview/id472662922/reviews) | **[4.2 (93 ratings)](https://appshunter.io/ios/app/radiacode/id6449358533/reviews)** |
| Number of ratings | 74 | **93** |
| Positive reviews | 63.0% of reviews | 63.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 17 MB | 49 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Oxford Wave Research Ltd.](https://appshunter.io/developer/472662925) | [Radiacode Ltd](https://appshunter.io/developer/1688704418) |

## What reviewers say

### SpectrumView

[App page](https://appshunter.io/ios/app/spectrumview/id472662922)

This app provides real-time audio analysis with a dynamic spectrogram and spectrum analyzer. Visualize audible and inaudible frequencies, measure tones, get feedback on speech, identify sounds, and calibrate instruments. Access recordings and snapshots easily.

**Highlights:** Real-time spectrogram and spectrum analyzer, Configurable sample rate and frequency resolution, Record, pause, and playback audio files, Generate snapshots of spectrum data, Web file transfer, Tap data cursor for precise frequency and level, Musical notes or frequency display on tap

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable peak hold | $0.99 | one-time |
| Access iTunes and SoundCould | $0.99 | one-time |
| Generate data snapshot | $0.99 | one-time |
| Enable Log Scale | $1.99 | one-time |
| Disable recording length limit | $1.99 | one-time |
| Enable pinch to zoom | $1.99 | one-time |
| Enable Web File Transfer | $1.99 | one-time |

**What reviewers like**

- 👍 Accurate and reliable spectrogram visualization
- 🎯 Highly configurable FFT and sampling settings
- 🎨 Beautiful and intuitive user interface
- 📊 Excellent for analyzing speech, music, and animal sounds
- ⚙️ Useful for professional audio calibration and research

**What reviewers complain about**

- 💰 Aggressive in-app purchase model for basic features
- 🔐 Unexplained location permission requests
- 📉 Linear frequency scale wastes screen space
- ⏱️ Slow app startup times
- 🎯 Limited frequency range (8kHz cap in recent versions)

**Reported bugs**

- App crashes on startup after updates
- Crashes when attempting to zoom on spectrograms
- Crashes when playing files from iTunes library
- Microphone hijacking error messages
- Pinch-to-zoom and pan features not functioning properly

**Requested features**

- Logarithmic frequency scale for audio analysis
- Adjustable time scale/window for spectrograms
- Ability to analyze audio from music library/iTunes
- Longer-term averaging for spectrum analyzer
- A-weighting frequency selection


### Radiacode

[App page](https://appshunter.io/ios/app/radiacode/id6449358533)

This application enhances a radiation monitoring device, offering real-time data analysis, interactive dashboards, and advanced search functions. It visualizes isotopes, detects food contamination, and maps radiation levels geographically, providing detailed insights into radiation environments.

**Highlights:** Interactive real-time dashboard, Advanced ionizing radiation search, Alarms for radiation limits, Isotope visualization and spectrometry, Food contamination detection (Cesium-137), Radiological mapping on Google Maps

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great app and device
- 👍 Easy to use and intuitive
- 🚀 Constantly being developed
- 👍 Fun to explore radiation
- 👍 Great value for hobbyist

**What reviewers complain about**

- 🐛 App keeps crashing
- 🐛 App crashes immediately
- 🐛 App won't open
- 🐛 App crashes constantly
- 🐛 Features flat out don't work

**Reported bugs**

- App keeps crashing
- App crashes immediately upon opening
- App won't open on iPhone 15 Pro
- App crashes constantly
- Features don't work

**Requested features**

- Scale data on map view
- Plot data along exponential curve
- See nuances in data less binary
- Clicks play through headphones
- Tone frequency proportional to energy


## Frequently asked questions

### Is SpectrumView free?

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

### Is Radiacode free?

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

### Which has better reviews, SpectrumView or Radiacode?

Radiacode is rated higher. SpectrumView averages 3.1 out of 5 from 74 ratings, while Radiacode averages 4.2 from 93 ratings.

### Do SpectrumView or Radiacode have ads?

Neither SpectrumView nor Radiacode shows ads.

### Which is updated more often, SpectrumView or Radiacode?

SpectrumView ships an update every 10 months, and Radiacode every 2 months. Most recently, SpectrumView was updated on September 21, 2026 and Radiacode on September 8, 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.*