# SonicTonic vs Mendi App

The clearest difference is in-app purchases: Mendi App at none against SonicTonic's 13. Mendi App also leads on ratings volume (460 vs 11). SonicTonic's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. SonicTonic sells 13 in-app purchases, starting at $2.99 per month. Mendi App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for SonicTonic against 4.4 for Mendi App. That said, the two scores are not equally well evidenced: Mendi App has 460 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 71% of SonicTonic's written reviews are positive against 76% of Mendi App's.

SonicTonic ships an update every 2 weeks, Mendi App every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | SonicTonic | Mendi App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/sonictonic/id1057946205/reviews)** | [4.4 (460 ratings)](https://appshunter.io/ios/app/mendi-app/id1548944912/reviews) |
| Number of ratings | 11 | **460** |
| Positive reviews | 70.8% of reviews | **76.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 57 MB | 489 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [GROVES Sound Branding GmbH](https://appshunter.io/developer/1057946204) | [Mendi Innovations AB](https://appshunter.io/developer/1463276456) |

## What reviewers say

### SonicTonic

[App page](https://appshunter.io/ios/app/sonictonic/id1057946205)

This app uses sound and music, informed by neurophysiology, to improve mental well-being. It helps reduce stress, enhance sleep, and boost concentration without requiring any practice.

**Highlights:** Stress reduction, Sleep improvement, Concentration stimulation, Learning ability enhancement, Anxiety and phobia treatment, Uses neurophysiological knowledge

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Premium (monthly) | $3.99 | per month |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription Offer | $9.99 | per year |
| SonicTonic Annual Discount | $24.99 | per year |
| Premium (annually) | $34.99 | per year |
| 10 Credits | $0.99 | one-time |
| Single Purchase Category 1 | $0.99 | one-time |
| Single Purchase Category 2 | $1.99 | one-time |
| Single Purchase Category 3 | $2.99 | one-time |
| 30 Credits | $3.99 | one-time |
| 80 Credits | $8.99 | one-time |
| Premium (lifetime) | $179.99 | one-time |


### Mendi App

[App page](https://appshunter.io/ios/app/mendi-app/id1548944912)

This app uses a connected headband with advanced neurofeedback technology to monitor brain activity. It provides scientifically-validated cognitive training designed to improve focus, memory, and emotional balance through personalized exercises.

**Highlights:** Advanced neurofeedback technology, Real-time brain activity insights, Scientifically-validated cognitive training, Boosts neuroplasticity, Comfortable and lightweight headband, Bluetooth connectivity

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Helpful for focus and mental health
- 🧠 Improves brain function
- 💤 Helps with sleep and relaxation
- 🤝 Positive impact on daily life

**What reviewers complain about**

- 🐛 App crashes and glitches
- 🔌 Connectivity issues with headband
- 📊 Lack of data/progress tracking
- 🕹️ Limited game/training options
- 🤒 Caused negative side effects for some users

**Reported bugs**

- App freezing and crashing
- Headband sensor issues
- Inconsistent score/progress tracking
- Orientation and display problems

**Requested features**

- More game/training variety
- Advanced data tracking and analytics
- iPad/tablet support
- Customization options for visuals and audio
- Integration with other health/fitness apps


## Frequently asked questions

### Is SonicTonic free?

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

### Is Mendi App free?

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

### Which has better reviews, SonicTonic or Mendi App?

SonicTonic is rated higher. SonicTonic averages 4.5 out of 5 from 11 ratings, while Mendi App averages 4.4 from 460 ratings.

### Do SonicTonic or Mendi App have ads?

Neither SonicTonic nor Mendi App shows ads.

### Which is updated more often, SonicTonic or Mendi App?

SonicTonic ships an update every 2 weeks, and Mendi App every 10 days. Most recently, SonicTonic was updated on October 24, 2026 and Mendi App on October 24, 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.*