# Nerva vs Mind Muscle Mastery

The clearest difference is update cadence: Nerva at weekly against Mind Muscle Mastery's every 2 months. Nerva also leads on ratings volume (15K vs 1) and chart position (#197 vs unranked). Mind Muscle Mastery's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Nerva sells 4 in-app purchases, starting at $43.99 per month and Mind Muscle Mastery sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Mind Muscle Mastery holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Nerva has 15K ratings behind it against 1, so its average is the more settled of the two.

Nerva ships an update weekly, Mind Muscle Mastery every 2 months. The most recent releases landed on September 26, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Nerva | Mind Muscle Mastery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15K ratings)](https://appshunter.io/ios/app/nerva-gut-brain-program/id1467398796/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mind-muscle-mastery/id6752859624/reviews)** |
| Number of ratings | **15K** | 1 |
| Positive reviews | 72.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#197** | — |
| Size | 134 MB | 57 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Mindset Health Pty Ltd](https://appshunter.io/developer/1255073245) | [Hunter Fuller](https://appshunter.io/developer/1841374949) |

## What reviewers say

### Nerva

[App page](https://appshunter.io/ios/app/nerva-gut-brain-program/id1467398796)

**Currently charting:** #197 Top Grossing · Health & Fitness (US App Store)

This app offers a personalized gut-brain therapy program to manage symptoms of IBS, FD, GERD, and other gut-brain disorders. It aims to retrain the nervous system and improve communication between the gut and brain through daily sessions and practical tools.

**Highlights:** Personalized gut-brain therapy program, Daily 15-minute retraining sessions, Flare-up management tools, Long-term symptom maintenance plan, AI-driven personalization, Evidence-based clinical research

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nerva IBS program (Monthly) | $43.99 | per month |
| 30% Off Nerva IBS (3 Month) | $60.99 | per 3 months |
| Nerva IBS program (3 Month) | $78.99 | per 3 months |
| Nerva Full Access | $199.00 | per year |

**What reviewers like**

- 🚀 Effective for symptom reduction
- 👍 Calming and relaxing sessions
- 💡 Helpful for managing stress and anxiety
- 👍 Positive affirmations and education
- 🚀 Quick improvements seen by some users

**What reviewers complain about**

- 🔁 Repetitive nature of sessions
- 💰 Expensive subscription cost
- 🔍 Lack of customization options
- 🐛 Technical issues with app functionality

**Reported bugs**

- App getting stuck on certain days
- Difficulty accessing previous sessions
- Inconsistent user experience across devices

**Requested features**

- More variety in guided visualizations
- Ability to skip or replace certain sessions
- Maintenance plan with reduced pricing
- Offline access to recordings


### Mind Muscle Mastery

[App page](https://appshunter.io/ios/app/mind-muscle-mastery/id6752859624)

This app provides comprehensive fitness and mindset coaching to help users achieve physical transformation and mental resilience. It offers custom workouts, nutrition guidance, and progress tracking to foster discipline and results.

**Highlights:** Custom workouts, Nutrition guidance, Progress tracking, Mindset coaching, Accountability tools

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mind Muscle Mastery Coaching | $0.99 | per month |


## Frequently asked questions

### Is Nerva free?

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

### Is Mind Muscle Mastery free?

Mind Muscle Mastery is free to download, with in-app purchases available.

### Which has better reviews, Nerva or Mind Muscle Mastery?

Mind Muscle Mastery is rated higher. Nerva averages 4.7 out of 5 from 15K ratings, while Mind Muscle Mastery averages 5.0 from 1 ratings.

### Do Nerva or Mind Muscle Mastery have ads?

Neither Nerva nor Mind Muscle Mastery shows ads.

### Which is updated more often, Nerva or Mind Muscle Mastery?

Nerva ships an update weekly, and Mind Muscle Mastery every 2 months. Most recently, Nerva was updated on September 26, 2026 and Mind Muscle Mastery on June 1, 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.*