# ZCalcIt vs Frequency Generator

The clearest difference is update cadence: Frequency Generator at every 6 days against ZCalcIt's every 11 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.

ZCalcIt ships an update every 11 months, Frequency Generator every 6 days. The most recent releases landed on May 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ZCalcIt | Frequency Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/frequency-generator-waves/id6762630692/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 7 MB | 23 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zynergy Apps LLC](https://appshunter.io/developer/1565381898) | [Dejan Atanasov](https://appshunter.io/developer/898725969) |

## What reviewers say

### ZCalcIt

[App page](https://appshunter.io/ios/app/zcalcit/id1660452783)

**In-app purchases:** none


### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-waves/id6762630692)

This app generates pure tones and binaural beats for focus, relaxation, or sleep. It also functions as a real-time sound analyzer, identifying musical notes and visualizing sound levels. Save and reuse your favorite settings with a clean, intuitive interface.

**Highlights:** Generate pure tones (1 Hz - 20,000 Hz), Create custom binaural beats, Real-time sound frequency detection, Identify musical notes, Visualize sound levels, Save and reuse presets

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

**In-app purchases:** none


## Frequently asked questions

### Is ZCalcIt free?

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

### Is Frequency Generator free?

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

### Do ZCalcIt or Frequency Generator have ads?

Neither ZCalcIt nor Frequency Generator shows ads.

### Which is updated more often, ZCalcIt or Frequency Generator?

ZCalcIt ships an update every 11 months, and Frequency Generator every 6 days. Most recently, ZCalcIt was updated on May 17, 2026 and Frequency Generator on September 16, 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.*