# Wavelet Voice Sonogram vs Freq.

The clearest difference is update cadence: Freq. at fortnightly against Wavelet Voice Sonogram's every 8 months. Freq. also leads on price ($0.99 vs $6.99) and chart position (#200 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Wavelet Voice Sonogram costs $6.99 and Freq. $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Wavelet Voice Sonogram ships an update every 8 months, Freq. fortnightly. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Wavelet Voice Sonogram | Freq. |
| --- | --- | --- |
| Price | $6.99 | **$0.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Best chart rank | — | **#200** |
| Size | 0 MB | 1 MB |
| Requires iOS | 26.2 | **26.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Maciej Kuliszkiewicz](https://appshunter.io/developer/884346656) |

## What reviewers say

### Wavelet Voice Sonogram

[App page](https://appshunter.io/ios/app/wavelet-voice-sonogram/id1574131130)

**In-app purchases:** none


### Freq.

[App page](https://appshunter.io/ios/app/freq/id6758111161)

**Currently charting:** #200 Top Paid · Utilities (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wavelet Voice Sonogram free?

Wavelet Voice Sonogram costs $6.99, with no in-app purchases.

### Is Freq. free?

Freq. costs $0.99, with no in-app purchases.

### Do Wavelet Voice Sonogram or Freq. have ads?

Neither Wavelet Voice Sonogram nor Freq. shows ads.

### Which is updated more often, Wavelet Voice Sonogram or Freq.?

Wavelet Voice Sonogram ships an update every 8 months, and Freq. fortnightly. Most recently, Wavelet Voice Sonogram was updated on September 9, 2026 and Freq. on September 13, 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.*