# Frequency Sound Wave Generator vs happram

The clearest difference is in-app purchases: happram at none against Frequency Sound Wave Generator's 3. happram also leads on ads (none vs shown) and update cadence (every 10 days vs monthly). On device support and iOS requirement there is nothing between them.

Frequency Sound Wave Generator ships an update monthly, happram every 10 days. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Frequency Sound Wave Generator | happram |
| --- | --- | --- |
| Price | **Free** | — |
| Rating | **[4.7 (87 ratings)](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398/reviews)** | — |
| Number of ratings | **87** | — |
| Positive reviews | 90.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 169 MB | 35 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Krejci](https://appshunter.io/developer/1737377675) | [yuhi furumori](https://appshunter.io/developer/6779660231) |

## What reviewers say

### Frequency Sound Wave Generator

[App page](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398)

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

**Highlights:** Single and multiple frequency generation, Musical notes presets, Binaural beats, SFX sound generator, Sweep generator, Bass/Subwoofer sound test, DTMF tones

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO subscription | $1.99 | per month |
| Yearly Pro Membership | $9.99 | per year |
| Lifetime PRO membership | $19.99 | one-time |


### happram

[App page](https://appshunter.io/ios/app/happram/id6779660229)

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Sound Wave Generator free?

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

### Is happram free?

Pricing for happram is not currently listed on the App Store.

### Do Frequency Sound Wave Generator or happram have ads?

Frequency Sound Wave Generator shows ads; happram does not.

### Which is updated more often, Frequency Sound Wave Generator or happram?

Frequency Sound Wave Generator ships an update monthly, and happram every 10 days. Most recently, Frequency Sound Wave Generator was updated on October 17, 2026 and happram on October 14, 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.*