# Fast Tract Diet vs Nerva

The clearest difference is price: Nerva at Free against Fast Tract Diet's $7.99. Nerva also leads on rating (4.7 vs 3.4) and update cadence (every 8 days vs every 3 months). Fast Tract Diet's advantage is in-app purchases (none vs 4) and chart position (#149 vs unranked). On ads and device support there is nothing between them.

Nerva is free to download; Fast Tract Diet costs $7.99 up front. Nerva sells 4 in-app purchases, starting at $99.00 per month. Fast Tract Diet asks for nothing beyond the download.

Nerva holds the better App Store score, 4.7 against 3.4. That said, the two scores are not equally well evidenced: Nerva has 15K ratings behind it against 63, so its average is the more settled of the two. Written reviews point the same way: 51% of Fast Tract Diet's written reviews are positive against 72% of Nerva's.

Fast Tract Diet ships an update every 3 months, Nerva every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Fast Tract Diet | Nerva |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [3.4 (63 ratings)](https://appshunter.io/ios/app/fast-tract-diet/id1062915865/reviews) | **[4.7 (15K ratings)](https://appshunter.io/ios/app/nerva-gut-brain-program/id1467398796/reviews)** |
| Number of ratings | 63 | **15K** |
| Positive reviews | 51.3% of reviews | **72.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#149** | — |
| Size | 11 MB | 138 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Norm Robillard](https://appshunter.io/developer/1062915864) | [Mindset Health Pty Ltd](https://appshunter.io/developer/1255073245) |

## What reviewers say

### Fast Tract Diet

[App page](https://appshunter.io/ios/app/fast-tract-diet/id1062915865)

**Currently charting:** #149 Top Paid · Health & Fitness (US App Store)

This app helps identify gut-friendly foods and track meals and symptoms. It uses a flexible point system to rate foods based on their symptom potential, aiding those with digestive issues like SIBO.

**Highlights:** Identify gut-friendly foods, Track meals and symptoms, Food symptom potential lookup, Flexible point system, Create shopping lists, Addresses digestive disorders

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

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for diet tracking
- 👍 Useful for symptom tracking
- 👍 Science-based approach
- 👍 Easy to use (for some)
- 👍 Companion to book

**What reviewers complain about**

- 🐛 Glitchy and buggy
- 🐛 Limited food database
- 🐛 Inaccurate FP scores
- 🐛 Custom recipes buggy
- 🐛 Slow to fill in

**Reported bugs**

- App changed ingredients in custom recipes
- Items swapped out in custom recipes
- Food items swapped for incorrect ones (e.g., Splenda for sucrose)
- Food added to the previous day instead of the current day
- Custom foods not saving

**Requested features**

- Export to spreadsheet/tab-delineated document
- Community/user-submitted food database
- Barcode scanner for food entry
- More foods in the database
- Sync data between devices (iPhone/iPad)


### Nerva

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

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) | $99.00 | per month |
| Nerva IBS program (3 Month) | $149.00 | per 3 months |
| 30% Off Nerva IBS (3 Month) | $149.00 | 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


## Frequently asked questions

### Is Fast Tract Diet free?

Fast Tract Diet costs $7.99, with no in-app purchases.

### Is Nerva free?

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

### Which has better reviews, Fast Tract Diet or Nerva?

Nerva is rated higher. Fast Tract Diet averages 3.4 out of 5 from 63 ratings, while Nerva averages 4.7 from 15K ratings.

### Do Fast Tract Diet or Nerva have ads?

Neither Fast Tract Diet nor Nerva shows ads.

### Which is updated more often, Fast Tract Diet or Nerva?

Fast Tract Diet ships an update every 3 months, and Nerva every 8 days. Most recently, Fast Tract Diet was updated on October 24, 2026 and Nerva 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.*