# EKF vs Звукоизоляция. Калькулятор

The clearest difference is update cadence: EKF at every 3 weeks against Звукоизоляция. Калькулятор's every 5 months. 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.

EKF ships an update every 3 weeks, Звукоизоляция. Калькулятор every 5 months. The most recent releases landed on September 19, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | EKF | Звукоизоляция. Калькулятор |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 110 MB | 44 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EKF Electrical Solution - FZCO](https://appshunter.io/developer/1804552891) | [TechnoSonus](https://appshunter.io/developer/1526262175) |

## What reviewers say

### EKF

[App page](https://appshunter.io/ios/app/ekf/id1482637366)

This app provides a comprehensive catalog of electrical equipment for power input, distribution, and metering. It offers solutions for process automation and energy efficiency across various industries.

**Highlights:** Electrical equipment catalog, Power input solutions, Distribution and metering, Process automation, Energy efficiency solutions

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

**In-app purchases:** none


### Звукоизоляция. Калькулятор

[App page](https://appshunter.io/ios/app/id1526262173)

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

**In-app purchases:** none


## Frequently asked questions

### Is EKF free?

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

### Is Звукоизоляция. Калькулятор free?

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

### Do EKF or Звукоизоляция. Калькулятор have ads?

Neither EKF nor Звукоизоляция. Калькулятор shows ads.

### Which is updated more often, EKF or Звукоизоляция. Калькулятор?

EKF ships an update every 3 weeks, and Звукоизоляция. Калькулятор every 5 months. Most recently, EKF was updated on September 19, 2026 and Звукоизоляция. Калькулятор on August 26, 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.*