# iAnalyzer vs Octave RTA

The clearest difference is price: iAnalyzer at Free against Octave RTA's $9.99. iAnalyzer also leads on update cadence (every 5 months vs every 17 months). Octave RTA's advantage is review sentiment (81% vs 41%) and in-app purchases (none vs 2). On rating, ratings volume, ads and device support there is nothing between them.

iAnalyzer is free to download; Octave RTA costs $9.99 up front. iAnalyzer sells 2 in-app purchases, starting at $4.99 per month. Octave RTA asks for nothing beyond the download.

Octave RTA holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 76 and 154 respectively. Written reviews point the same way: 41% of iAnalyzer's written reviews are positive against 81% of Octave RTA's.

iAnalyzer ships an update every 5 months, Octave RTA every 17 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | iAnalyzer | Octave RTA |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.2 (76 ratings)](https://appshunter.io/ios/app/ianalyzer/id335449113/reviews) | **[4.4 (154 ratings)](https://appshunter.io/ios/app/octave-rta/id569156857/reviews)** |
| Number of ratings | 76 | **154** |
| Positive reviews | 40.5% of reviews | **80.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 17 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#128** |
| Size | 3 MB | 7 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [平 陈](https://appshunter.io/developer/315130423) | [ONYX Apps](https://appshunter.io/developer/356553882) |

## What reviewers say

### iAnalyzer

[App page](https://appshunter.io/ios/app/ianalyzer/id335449113)

This professional audio analysis software uses FFT to examine sound signals on iOS devices. It offers real-time spectrum analysis, precise peak frequency computation, and a unique instrument tuner function. Ideal for musicians and sound engineers seeking detailed audio insights.

**Highlights:** Real-time FFT spectrum analysis, Octave and 1/3 Octave display, High precision peak frequency computation, Instrument tuner function, Adjustable playback speed, VGA output support, Waveform display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iAnalyzer Pro (1 Month) | $4.99 | per month |
| iAnalyzer Pro (1 Year) | $29.99 | per year |


### Octave RTA

[App page](https://appshunter.io/ios/app/octave-rta/id569156857)

**Currently charting:** #128 Top Paid · Music (US App Store)

This real-time audio analysis app provides precision measurement and visualization for sound. It's designed for musicians and recording engineers, but useful for anyone interested in sound, especially for room or speaker tuning.

**Highlights:** Full, 1/3, and 1/6 Octave analysis, Adjustable FFT Size, Fast, Slow, and Infinite Averaging, Flat, A, and C weighted modes, Snapshot overlay for comparison, Lock mode for peak band tracking

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate and precise measurements
- 👍 User-friendly interface
- 💡 Great tool for sound engineers
- 💰 Good value for money
- ✅ Works well for feedback detection

**What reviewers complain about**

- 🐛 Screen flashing/blinking issue
- 🐛 Gain adjustment not working
- 🐛 Microphone permission issues
- 🐛 Lack of advanced features
- 🐛 Inconsistent performance across devices

**Reported bugs**

- Screen flashing/blinking on iPads
- Gain slider not working on some devices
- Microphone permission not appearing in settings
- App not working on iOS 14.2
- Display unstable and flashes wildly

**Requested features**

- Increase graph resolution (e.g., to 3dB)
- Alternative input sound sources (e.g., lightning audio)
- Standalone Mac app
- Alternative input sound sources (e.g., line in)
- Ability to switch to line input


## Frequently asked questions

### Is iAnalyzer free?

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

### Is Octave RTA free?

Octave RTA costs $9.99, with no in-app purchases.

### Which has better reviews, iAnalyzer or Octave RTA?

Octave RTA is rated higher. iAnalyzer averages 4.2 out of 5 from 76 ratings, while Octave RTA averages 4.4 from 154 ratings.

### Do iAnalyzer or Octave RTA have ads?

Neither iAnalyzer nor Octave RTA shows ads.

### Which is updated more often, iAnalyzer or Octave RTA?

iAnalyzer ships an update every 5 months, and Octave RTA every 17 months. Most recently, iAnalyzer was updated on October 23, 2026 and Octave RTA on October 22, 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.*