# EEG Waves vs Protocol Grip Trainer

The clearest difference is price: Protocol Grip Trainer at Free against EEG Waves's $24.99. Protocol Grip Trainer also leads on rating (5.0 vs 2.5) and update cadence (weekly vs every 12 months). EEG Waves's advantage is chart position (#187 vs unranked) and iOS requirement (13.0 vs 16.6). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Protocol Grip Trainer is free to download; EEG Waves costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Protocol Grip Trainer holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

EEG Waves ships an update every 12 months, Protocol Grip Trainer weekly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | EEG Waves | Protocol Grip Trainer |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/eeg-waves/id6443848939/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/protocol-grip-trainer/id6756031987/reviews)** |
| Number of ratings | 2 | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#187** | — |
| Size | 55 MB | 30 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BRAINBIT INC.](https://appshunter.io/developer/1510548622) | [Sawyer Blankenship](https://appshunter.io/developer/1858099080) |

## What reviewers say

### EEG Waves

[App page](https://appshunter.io/ios/app/eeg-waves/id6443848939)

**Currently charting:** #187 Top Paid · Health & Fitness (US App Store)

This system records user emotional activity, including relaxation and concentration states. It generates graphs of wave activity, emotional dynamics, and rhythm diagrams. Data can be exported, saved, and filtered by date.

**Highlights:** Record emotional activity, Track relaxation and concentration, Graph wave activity dynamics, Visualize emotional states, Circular rhythm diagrams, Export and save session data, Filter data by date

**Features:** Vision Pro support

**In-app purchases:** none


### Protocol Grip Trainer

[App page](https://appshunter.io/ios/app/protocol-grip-trainer/id6756031987)

This app pairs with a Bluetooth grip trainer device to track your grip strength workouts. Perform structured exercises to improve your grip and monitor your progress directly on your phone.

**Highlights:** Bluetooth connectivity, Workout tracking, Grip strength measurement, Structured workouts, Progress monitoring

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EEG Waves free?

EEG Waves costs $24.99, with no in-app purchases.

### Is Protocol Grip Trainer free?

Protocol Grip Trainer is free to download, with no in-app purchases.

### Which has better reviews, EEG Waves or Protocol Grip Trainer?

Protocol Grip Trainer is rated higher. EEG Waves averages 2.5 out of 5 from 2 ratings, while Protocol Grip Trainer averages 5.0 from 9 ratings.

### Do EEG Waves or Protocol Grip Trainer have ads?

Neither EEG Waves nor Protocol Grip Trainer shows ads.

### Which is updated more often, EEG Waves or Protocol Grip Trainer?

EEG Waves ships an update every 12 months, and Protocol Grip Trainer weekly. Most recently, EEG Waves was updated on November 7, 2026 and Protocol Grip Trainer 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.*