# BKPK App vs Tuning Fork Pro 20

The clearest difference is update cadence: Tuning Fork Pro 20 at weekly against BKPK App's every 2 months. Tuning Fork Pro 20 also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BKPK App ships an update every 2 months, Tuning Fork Pro 20 weekly. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | BKPK App | Tuning Fork Pro 20 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/tuning-fork-pro-20-20000hz/id6529535310/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 2 MB | 6 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aidan Correll](https://appshunter.io/developer/1681425040) | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) |

## What reviewers say

### BKPK App

[App page](https://appshunter.io/ios/app/bkpk-app/id6447474645)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tuning Fork Pro 20

[App page](https://appshunter.io/ios/app/tuning-fork-pro-20-20000hz/id6529535310)

This utility app provides a simple and straightforward tuning fork. It allows users to generate any frequency between 20 Hz and 20,000 Hz, limited only by the device's speaker and human hearing.

**Highlights:** Adjustable frequency range (20 Hz - 20,000 Hz), Simple and easy to use interface, Generates audio tones, No complex settings

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

**In-app purchases:** none


## Frequently asked questions

### Is BKPK App free?

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

### Is Tuning Fork Pro 20 free?

Tuning Fork Pro 20 is free to download, with no in-app purchases.

### Do BKPK App or Tuning Fork Pro 20 have ads?

Neither BKPK App nor Tuning Fork Pro 20 shows ads.

### Which is updated more often, BKPK App or Tuning Fork Pro 20?

BKPK App ships an update every 2 months, and Tuning Fork Pro 20 weekly. Most recently, BKPK App was updated on October 7, 2026 and Tuning Fork Pro 20 on October 6, 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.*