Bellabee PRO vs Z
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bellabee PRO
This app uses brainwave entrainment technology to help you achieve desired mental states. It acts as a digital metronome, guiding your mind and body to work in harmony for stress relief, improved concentration, and better meditation.
- Brainwave entrainment technology
- Digital metronome
- State of mind selection
- Stress relief
- Concentration improvement
- Meditation aid
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Brainwave entrainment (BWE) technology, which uses rhythmic stimuli to alter brainwave frequency and thus brain states, has been investigated and used since the late 1800s, yet many clinicians and scientists are unaware of its existence. Bellabee is such a device, tested and used worldwide, an active digital metronome which you control, choosing your preferred state of mind and allowing the device to suggest how your mind should behave and the rhythm at which it operates. It’s a personal assistant which coaxes your mind and body to work in tandem as you would like them to. It’s 100% safe, effective and very easy to use. We’re going to cover how it works, and why so many people are choosing this particular device to find harmony, relieve stress, improve meditation and concentrate. It doesn’t need batteries or re-charging, it simply plugs into the headphone socket on your smartphone or tablet. Using an app, you can choose the signal frequency that’s best suited to what you want to achieve.
Z
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.
- Rife frequency generator
- Over 1300 sequences
- Audio frequency generation
- Wellness exploration
- Mobile and tablet use
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Z-App is a rife frequency generator designed to generate audio frequencies for wellness. With over 1300 sequences, it allows users to explore frequency-based wellness practices right on their phone or tablet. Disclaimer: Z-App is intended for personal wellness and experimental use only. It is not intended to diagnose, treat, cure, or prevent any medical condition. The frequency lists provided are based on anecdotal and alternative wellness traditions and are not supported by medical evidence. Always consult a healthcare professional before using the app, especially if you have any health concerns. This app should not be used as a substitute for professional medical advice or treatment. Use of the app is at your own discretion.
Screenshots
Verdict
The clearest difference is rating: Z at 4.8 against Bellabee PRO's 4.1. Z also leads on review sentiment (83% vs 55%) and ratings volume (517 vs 19). Bellabee PRO's advantage is iOS requirement (11.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Z holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Z has 517 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 55% of Bellabee PRO's written reviews are positive against 83% of Z's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Bellabee PRO | Z |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (19 ratings) | 4.8 (517 ratings) — better |
| Positive reviews | 54.5% of reviews | 83.3% of reviews — better |
| Number of ratings | 19 | 517 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 13 MB | 17 MB |
| Age rating | 4+ | 17+ |
| Developer | Implementacija snova Ltd | Allt Hitt ehf |
Customer experience
Bellabee PRO
Z
Bugs and requests
Bellabee PRO
Not enough reviews yet to summarise bugs or requests.
Z
Reported bugs
5 issues- Freezing during session
- Stopping playback when interrupted
- Compatibility issues with newer OS
- Lack of TMJ frequency
- Unexpected volume adjustments
Requested features
6 requests- Sawtooth tone
- Multiple frequencies
- Play controls
- Dark mode
- Back button
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- Users manual
In-app purchases
Bellabee PRO
No in-app purchases
Z
No in-app purchases
Questions
Is Bellabee PRO free?
Is Z free?
Which has better reviews, Bellabee PRO or Z?
Do Bellabee PRO or Z have ads?
Which is updated more often, Bellabee PRO or Z?
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