# Korubin Tools vs Sonor

The clearest difference is update cadence: Sonor at monthly against Korubin Tools's every 3 months. Korubin Tools's advantage is iOS requirement (9.2 vs 15.1). 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.

Korubin Tools ships an update every 3 months, Sonor monthly. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Korubin Tools | Sonor |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 13 MB | 38 MB |
| Requires iOS | **9.2** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Envest](https://appshunter.io/developer/1000176195) | [TTTools](https://appshunter.io/developer/1686019168) |

## What reviewers say

### Korubin Tools

[App page](https://appshunter.io/ios/app/korubin-tools/id943446457)

This utility app performs various efficiency analyses for cables and pipes, including basic and advanced calculations. It helps users analyze system performance, power consumption, and fluid dynamics.

**Highlights:** Basic efficiency analysis, Advanced efficiency calculations, Cable efficiency analysis, Pipe efficiency calculations, Hydraulic and system efficiency metrics, Fluid dynamics parameters

**Features:** macOS Compatibility

**In-app purchases:** none


### Sonor

[App page](https://appshunter.io/ios/app/sonor-real-time-data/id6448738959)

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

**In-app purchases:** none


## Frequently asked questions

### Is Korubin Tools free?

Korubin Tools is free to download, with no in-app purchases.

### Is Sonor free?

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

### Do Korubin Tools or Sonor have ads?

Neither Korubin Tools nor Sonor shows ads.

### Which is updated more often, Korubin Tools or Sonor?

Korubin Tools ships an update every 3 months, and Sonor monthly. Most recently, Korubin Tools was updated on October 5, 2026 and Sonor on October 8, 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.*