# Mendi App vs Sonal

The clearest difference is rating: Sonal at 5.0 against Mendi App's 4.4. Sonal also leads on monetization model (free vs paid) and device support (3 vs 1). Mendi App's advantage is ratings volume (460 vs 7) and update cadence (every 10 days vs every 3 weeks). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sonal holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Mendi App has 460 ratings behind it against 7, so its average is the more settled of the two.

Mendi App ships an update every 10 days, Sonal every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Mendi App | Sonal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (460 ratings)](https://appshunter.io/ios/app/mendi-app/id1548944912/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/sonal/id1592485070/reviews)** |
| Number of ratings | **460** | 7 |
| Positive reviews | 76.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Paid | **Free** |
| Size | 489 MB | 34 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Mendi Innovations AB](https://appshunter.io/developer/1463276456) | [Wave Neuroscience, Inc](https://appshunter.io/developer/1592485072) |

## What reviewers say

### 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


### Sonal

[App page](https://appshunter.io/ios/app/sonal/id1592485070)

This application connects to a specialized device to administer brain optimization sessions. It allows users to manage their profile, set session parameters, and monitor progress. The app facilitates the transfer of session data to the connected device.

**Highlights:** Connect to Sonal Device, Administer brain optimization sessions, Access Braincare profile, Transfer session parameters, Monitor session progress

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mendi App free?

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

### Is Sonal free?

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

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

Sonal is rated higher. Mendi App averages 4.4 out of 5 from 460 ratings, while Sonal averages 5.0 from 7 ratings.

### Do Mendi App or Sonal have ads?

Neither Mendi App nor Sonal shows ads.

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

Mendi App ships an update every 10 days, and Sonal every 3 weeks. Most recently, Mendi App was updated on October 24, 2026 and Sonal 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.*