# Frequency Analyzer vs Book Wise Hub

The clearest difference is in-app purchases: Book Wise Hub at none against Frequency Analyzer's 11. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. Book Wise Hub asks for nothing beyond the download.

Frequency Analyzer ships an update every 8 days, Book Wise Hub every 6 days. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Frequency Analyzer | Book Wise Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (169 ratings)](https://appshunter.io/ios/app/frequency-analyzer/id6468837339/reviews)** | — |
| Number of ratings | **169** | — |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 74 MB |
| Requires iOS | 17.2 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Manfred Kuegel](https://appshunter.io/developer/1520736594) | [Osman Kaya](https://appshunter.io/developer/1896544454) |

## What reviewers say

### Frequency Analyzer

[App page](https://appshunter.io/ios/app/frequency-analyzer/id6468837339)

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

**Highlights:** Real-time FFT analysis, Calibrated SPL measurements, 32-bit float audio recording, Synchronized video recording, Spectrogram and octave band analysis, Export WAV, CSV, images, and videos

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Analyzer Pro Weekly | $2.99 | per 7 days |
| Frequency Analyzer Pro Monthly | $3.99 | per month |
| Frequency Analyzer Pro Monthly | $3.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Annual | $29.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Pro access for lifetime | $89.99 | one-time |


### Book Wise Hub

[App page](https://appshunter.io/ios/app/book-wise-hub/id6781113707)

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

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Analyzer free?

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

### Is Book Wise Hub free?

Book Wise Hub is free to download, with no in-app purchases.

### Do Frequency Analyzer or Book Wise Hub have ads?

Neither Frequency Analyzer nor Book Wise Hub shows ads.

### Which is updated more often, Frequency Analyzer or Book Wise Hub?

Frequency Analyzer ships an update every 8 days, and Book Wise Hub every 6 days. Most recently, Frequency Analyzer was updated on October 16, 2026 and Book Wise Hub on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*