# Cavit Scale 4SP vs PEDRO APP

The clearest difference is price: PEDRO APP at Free against Cavit Scale 4SP's $79.99. PEDRO APP also leads on iOS requirement (15.0 vs 17.6). Cavit Scale 4SP's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

PEDRO APP is free to download; Cavit Scale 4SP costs $79.99 up front. PEDRO APP sells 1 in-app purchase, starting at $3.99 per month. Cavit Scale 4SP asks for nothing beyond the download.

Cavit Scale 4SP ships an update every 3 months, PEDRO APP every 6 weeks. The most recent releases landed on August 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Cavit Scale 4SP | PEDRO APP |
| --- | --- | --- |
| Price | $79.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 4 MB | 52 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cavit Artanlar](https://appshunter.io/developer/1166910542) | [Fanplus, Inc.](https://appshunter.io/developer/427785206) |

## What reviewers say

### Cavit Scale 4SP

[App page](https://appshunter.io/ios/app/cavit-scale-4sp/id1181366565)

Manage Arabic User-Scales for Korg Pa-Series keyboards. Save scales across 7 banks with on/off switches. Compatible with various wireless MIDI adapters and Apple camera adapters.

**Highlights:** Manage Arabic User-Scales, Save scales in 7 banks, On/Off switch for scale banks, Compatible with wireless MIDI adapters, Supports Apple camera adapters

**In-app purchases:** none


### PEDRO APP

[App page](https://appshunter.io/ios/app/pedro-app/id1492774580)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PEDRO EDUCATION CULB 月額会員 | $3.99 | per month |


## Frequently asked questions

### Is Cavit Scale 4SP free?

Cavit Scale 4SP costs $79.99, with no in-app purchases.

### Is PEDRO APP free?

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

### Do Cavit Scale 4SP or PEDRO APP have ads?

Neither Cavit Scale 4SP nor PEDRO APP shows ads.

### Which is updated more often, Cavit Scale 4SP or PEDRO APP?

Cavit Scale 4SP ships an update every 3 months, and PEDRO APP every 6 weeks. Most recently, Cavit Scale 4SP was updated on August 26, 2026 and PEDRO APP on September 25, 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.*