# Z vs Spirogenix MoldWave™

The clearest difference is rating: Z at 4.8 against Spirogenix MoldWave™'s 4.0. Z also leads on in-app purchases (none vs 6) and ratings volume (517 vs 4). Spirogenix MoldWave™'s advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Spirogenix MoldWave™ sells 6 in-app purchases, starting at $9.99 per 7 days. Z asks for nothing beyond the download.

Z holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Z has 517 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 83% of Z's written reviews are positive against 67% of Spirogenix MoldWave™'s.

Z ships an update every 2 months, Spirogenix MoldWave™ weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Z | Spirogenix MoldWave™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (517 ratings)](https://appshunter.io/ios/app/z-app/id1509263287/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/spirogenix-moldwave/id6505110013/reviews) |
| Number of ratings | **517** | 4 |
| Positive reviews | **83.3% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Subscription |
| Size | 17 MB | 28 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Allt Hitt ehf](https://appshunter.io/developer/1509263286) | [Spirogenix LLC](https://appshunter.io/developer/1755181468) |

## What reviewers say

### Z

[App page](https://appshunter.io/ios/app/z-app/id1509263287)

Generate audio frequencies for personal wellness and experimental use. Explore over 1300 sequences for frequency-based practices on your mobile device. This app is for wellness exploration and is not a medical device.

**Highlights:** Rife frequency generator, Over 1300 sequences, Audio frequency generation, Wellness exploration, Mobile and tablet use

**In-app purchases:** none

**What reviewers like**

- 🚀 Amazing support for health
- 👍 Help that is accessible
- 🤯 Astounded me
- 📚 Comprehensive List!
- 💫 Love it!

**What reviewers complain about**

- 🐛 Frozen during session
- 🐛 Frozen
- 🐛 Doesn't stay on
- 🐛 Not working
- 🐛 Stopped playing sound

**Reported bugs**

- Freezing during session
- Stopping playback when interrupted
- Compatibility issues with newer OS
- Lack of TMJ frequency
- Unexpected volume adjustments

**Requested features**

- Sawtooth tone
- Multiple frequencies
- Play controls
- Dark mode
- Back button


### Spirogenix MoldWave™

[App page](https://appshunter.io/ios/app/spirogenix-moldwave/id6505110013)

This app utilizes patented audio vibration technology to reduce or eliminate mold, mildew, fungus, and mycotoxins from indoor environments. It offers various subscription plans for personal or professional use, with options for single or multiple device access.

**Highlights:** Audio vibration technology, Reduces mold, mildew, fungus, Eliminates mycotoxins, Indoor air and surface treatment, Multiple subscription tiers, Multi-device support

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual - Weekly | $9.99 | per 7 days |
| Individual - Monthly | $34.99 | per month |
| Professional - Monthly | $89.99 | per month |
| Individual - Yearly | $174.99 | per year |
| Professional - Yearly | $449.99 | per year |
| Lifetime | $294.99 | one-time |


## Frequently asked questions

### Is Z free?

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

### Is Spirogenix MoldWave™ free?

Spirogenix MoldWave™ is free to download, with in-app purchases available.

### Which has better reviews, Z or Spirogenix MoldWave™?

Z is rated higher. Z averages 4.8 out of 5 from 517 ratings, while Spirogenix MoldWave™ averages 4.0 from 4 ratings.

### Do Z or Spirogenix MoldWave™ have ads?

Neither Z nor Spirogenix MoldWave™ shows ads.

### Which is updated more often, Z or Spirogenix MoldWave™?

Z ships an update every 2 months, and Spirogenix MoldWave™ weekly. Most recently, Z was updated on November 3, 2026 and Spirogenix MoldWave™ on October 30, 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.*