# Frequency Generator vs Jonio

The clearest difference is in-app purchases: Jonio at none against Frequency Generator's 7. Jonio also leads on update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Frequency Generator sells 7 in-app purchases, starting at $9.99 per year. Jonio asks for nothing beyond the download.

Frequency Generator ships an update every 3 weeks, Jonio daily. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Frequency Generator | Jonio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (82 ratings)](https://appshunter.io/ios/app/frequency-generator-tone-and-hz/id1607976184/reviews)** | — |
| Number of ratings | **82** | — |
| Positive reviews | 23.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Freemium | — |
| Size | 26 MB | 48 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sunshine Software Labs](https://appshunter.io/developer/1788219451) | [Kleiton Filhinho](https://appshunter.io/developer/1650649601) |

## What reviewers say

### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-tone-and-hz/id1607976184)

Generate sound waves from 1Hz to 40000Hz with various waveforms. Analyze audio frequencies, test hearing, and use for relaxation or speaker cleaning. Offers a sleep timer for peaceful rest.

**Highlights:** Multiple waveform generation (Sine, Triangle, Sawtooth, Square), Real-time frequency and sound level analysis, Hearing test and monitoring, Sleep timer for relaxation, Speaker cleaning function, Educational sound wave exploration

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7 Day Free Then Get Premium | $9.99 | per year |
| 3 Days Free Trial Weekly VIP | $9.99 | per 7 days |
| Get Premium Monthly | $9.99 | per month |
| 3 Days Free Trial then Get Premium | $19.99 | per month |
| Get Premium Annual | $49.99 | per year |
| 7 Day Free Yearly VIP | $49.99 | per year |
| Get Premium One Time Purchase | $19.99 | one-time |


### Jonio

[App page](https://appshunter.io/ios/app/jonio/id6792494615)

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

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Generator free?

Frequency Generator is free to download, with in-app purchases available.

### Is Jonio free?

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

### Do Frequency Generator or Jonio have ads?

Neither Frequency Generator nor Jonio shows ads.

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

Frequency Generator ships an update every 3 weeks, and Jonio daily. Most recently, Frequency Generator was updated on October 18, 2026 and Jonio on October 5, 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.*