# Audio / Spectrum Analyzer vs Terra Listens

Audio / Spectrum Analyzer and Terra Listens both sit at 4.6 stars, but that hides the real split: 79% of Audio / Spectrum Analyzer's written reviews are positive against 29% of Terra Listens's. Audio / Spectrum Analyzer also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (1.1K vs 104). Terra Listens's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Audio / Spectrum Analyzer sells 1 one-off in-app purchase. Terra Listens asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Audio / Spectrum Analyzer against 4.5 for Terra Listens. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1.1K ratings behind it against 104, so its average is the more settled of the two. Written reviews are what separate them: 79% of Audio / Spectrum Analyzer's written reviews are positive against 29% of Terra Listens's.

Audio / Spectrum Analyzer ships an update every 2 weeks, Terra Listens every 2 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Audio / Spectrum Analyzer | Terra Listens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** | [4.5 (104 ratings)](https://appshunter.io/ios/app/terra-listens/id6569248651/reviews) |
| Number of ratings | **1.1K** | 104 |
| Positive reviews | **78.6% of reviews** | 29.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 5 MB | 244 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [Clearly Crickets](https://appshunter.io/developer/1685286391) |

## What reviewers say

### 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


### Terra Listens

[App page](https://appshunter.io/ios/app/terra-listens/id6569248651)

This app uses AI to identify bird songs and calls, and detect tagged wildlife. It allows users to track migration, maintain yard bird lists, and explore discoveries from other users. Stream audio feeds from devices worldwide and reconnect with nature from home.

**Highlights:** AI bird song identification, Wildlife tag detection, Migration tracking research, Yard bird list maintenance, Global audio stream, Explore user discoveries

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

**In-app purchases:** none


## Frequently asked questions

### Is Audio / Spectrum Analyzer free?

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

### Is Terra Listens free?

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

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

Audio / Spectrum Analyzer is rated higher. Audio / Spectrum Analyzer averages 4.6 out of 5 from 1.1K ratings, while Terra Listens averages 4.5 from 104 ratings.

### Do Audio / Spectrum Analyzer or Terra Listens have ads?

Audio / Spectrum Analyzer shows ads; Terra Listens does not.

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

Audio / Spectrum Analyzer ships an update every 2 weeks, and Terra Listens every 2 months. Most recently, Audio / Spectrum Analyzer was updated on October 29, 2026 and Terra Listens on October 27, 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.*