# Audio Frequency Analyzer vs PDF Ripper

The clearest difference is rating: Audio Frequency Analyzer at 3.7 against PDF Ripper's 2.7. Audio Frequency Analyzer also leads on review sentiment (60% vs 20%) and update cadence (every 8 months vs every 38 months). PDF Ripper's advantage is price ($1.99 vs $9.99) and device support (4 vs 1). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Audio Frequency Analyzer costs $9.99 and PDF Ripper $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Audio Frequency Analyzer holds the better App Store score, 3.7 against 2.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 60% of Audio Frequency Analyzer's written reviews are positive against 20% of PDF Ripper's.

Audio Frequency Analyzer ships an update every 8 months, PDF Ripper every 38 months. The most recent releases landed on September 9, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Audio Frequency Analyzer | PDF Ripper |
| --- | --- | --- |
| Price | $9.99 | **$1.99** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/pdf-ripper/id1545556490/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | **60.0% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 38 months |
| Monetization | Paid | Paid |
| Size | 0 MB | 1 MB |
| Requires iOS | 26.2 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [实 许](https://appshunter.io/developer/681075194) |

## What reviewers say

### Audio Frequency Analyzer

[App page](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

**Highlights:** Real-time frequency spectrum response measurement (1/3 octave, 30 bands), FFT Analyzer, Observation frequency range: 20 - 23000 Hz, Calibration function for high accuracy, Supports built-in and external microphones, Snapshot and averaging functions

**In-app purchases:** none


### PDF Ripper

[App page](https://appshunter.io/ios/app/pdf-ripper/id1545556490)

This utility app allows you to extract specific pages from PDF files. You can choose to keep only designated pages or exclude certain ones. It's useful for analysis, reporting, or removing unwanted content from documents.

**Highlights:** Extract specific PDF pages, Exclude unwanted PDF pages, Retain PDF outlines, Import PDF files, Export ripped PDF files

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio Frequency Analyzer free?

Audio Frequency Analyzer costs $9.99, with no in-app purchases.

### Is PDF Ripper free?

PDF Ripper costs $1.99, with no in-app purchases.

### Which has better reviews, Audio Frequency Analyzer or PDF Ripper?

Audio Frequency Analyzer is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while PDF Ripper averages 2.7 from 3 ratings.

### Do Audio Frequency Analyzer or PDF Ripper have ads?

Neither Audio Frequency Analyzer nor PDF Ripper shows ads.

### Which is updated more often, Audio Frequency Analyzer or PDF Ripper?

Audio Frequency Analyzer ships an update every 8 months, and PDF Ripper every 38 months. Most recently, Audio Frequency Analyzer was updated on September 9, 2026 and PDF Ripper on September 16, 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.*