Fast Tract Diet vs Nerva
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fast Tract Diet
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.
- Identify gut-friendly foods
- Track meals and symptoms
- Food symptom potential lookup
- Flexible point system
- Create shopping lists
- Addresses digestive disorders
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Fast Tract Diet App helps you identify gut friendly foods versus hard-to-digest foods, track and chart your meals and symptoms, create shopping lists and quickly look up symptom potential for specific foods & drinks at your favorite market on the fly. Fast Tract Diet is based on a flexible “FP” point system adaptable to a variety of dietary preferences. Each food is assigned a specific point value based on its symptom potential; the lower the points, the lower the symptom potential. Fast Tract Diet addresses the symptoms of Functional Gastrointestinal Disorders and Small Intestinal Bacterial Overgrowth (SIBO) and related digestive and general health issues including: • Gas, bloating, distension and belching • Cramps, abdominal pain and indigestion • Diarrhea, constipation or altered bowel habits • Heartburn, sore throat, sinus irritation, persistent cough, sour taste, hoarseness, lump in throat feeling and post nasal drip • Respiratory symptoms • Allergic and autoimmune reactions Credits for various Icons - https://icons8.com/ - http://www.flaticon.com/ Icons made by Freepik from www.flaticon.com Icon made by Picol from www.flaticon.com
Nerva
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.
- 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
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Address the miscommunication between your gut and brain. Designed for people living with IBS, functional dyspepsia (FD), GERD, bloating symptoms, and other gut–brain disorders - as well as those seeking additional support alongside IBD care - Nerva is a personalized gut–brain program that supports symptom management through daily sessions, practical tools, and structured guidance. Target the root cause Many people spend years cutting out foods in an effort to calm their gut - a difficult path that can miss what’s really driving symptoms. In disorders of gut–brain interaction (DGBIs), the root cause is gut–brain hypersensitivity. After a trigger like illness, antibiotics, or prolonged stress, the nerves in the gut can become over-reactive. Even once the gut tissue heals, the nervous system may keep the alarm turned up. Normal digestion, gas, or movement are then misread as danger - leading to pain, bloating, reflux, urgency, constipation, or diarrhea. Diets and medications can reduce symptoms temporarily, but they don’t retrain this signaling system. That’s why symptoms often return or shift over time. Lasting relief means calming the nervous system and restoring healthy gut–brain communication - where the symptoms actually start. How Nerva helps Nerva is a structured gut–brain program that helps you practice brain-gut techniques shown to support a calmer response to gut sensations. Over the program you'll learn to: - Respond differently to uncomfortable gut signals - Practice calming the gut–brain stress response - Build daily habits that support digestive comfort Tailored to you No two guts are the same. Nerva adapts your program to your symptoms, triggers, and progress - using AI to adjust the coaching and guidance as you go. The sessions, the tools you receive, and the coaching you follow are all shaped around your experience. Evidence-based Unlike most apps, Nerva is built on clinical research. In a randomized controlled trial at Monash University, Nerva helped 81% of people significantly manage their gastrointestinal symptoms. Since then, more than 300,000 people have used Nerva, and over 11,000 healthcare providers recommend it. Features of Nerva - Daily 15-minute sessions designed to retrain gut-brain miscommunication - Flare-up tools for pain, bloating, constipation, reflux and diarrhea - Long-term maintenance plan to keep symptoms under control after the program - AI personalization to tailor the program to your selected triggers and progress Who is the team behind Nerva? Nerva was built by Dr. Simone Peters, GI psychophysiologist, together with clinicians, dietitians, and researchers. Many of us live with gut conditions ourselves. Member stories “Nerva has really worked for me. I’ve been using the app for several months now, and I’ve noticed that I’m experiencing less negative instances with my stomach. I would highly recommend to anyone - absolutely worth the subscription” Disclaimer: Nerva is a self-guided program that may help people self-manage and live well with a diagnosed disorder of the gut-brain interaction. It is not a substitute for professional medical care, diagnosis, or treatment, and has not been evaluated by the FDA, TGA, MHRA, or equivalent bodies. Do not change prescribed medication or treatment without professional advice. Some content is personalized or generated by AI for educational and wellness purposes only. It is not therapy or mental health care, is not from a licensed professional, and is not monitored in real time. If you are in distress or thinking of harming yourself or others, call your local emergency number right away. Subscription and trial 7-day free trial After the trial, your account is charged according to the plan you choose Subscriptions renew until cancelled Cancel anytime in iOS Settings, Apple ID, Subscriptions Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.mindsethealth.com/privacy
Screenshots
Verdict
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 (#171 vs unranked). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Fast Tract Diet | Nerva |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 3.4 (63 ratings) | 4.7 (15K ratings) — better |
| Positive reviews | 51.3% of reviews | 72.4% of reviews — better |
| Number of ratings | 63 | 15K — better |
| Update frequency | Every 3 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #171 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 11 MB | 138 MB |
| Age rating | 12+ | 12+ |
| Developer | Norm Robillard | Mindset Health Pty Ltd |
Customer experience
Fast Tract Diet
Nerva
User reviews
Fast Tract Diet
From 63 App Store ratingsWhat we love
- 👍 Helpful for diet tracking
- 👍 Useful for symptom tracking
- 👍 Science-based approach
- 👍 Easy to use (for some)
- 👍 Companion to book
Room to improve
- 🐛 Glitchy and buggy
- 🐛 Limited food database
- 🐛 Inaccurate FP scores
- 🐛 Custom recipes buggy
- 🐛 Slow to fill in
Nerva
From 15K App Store ratingsWhat we love
- 🚀 Effective for symptom reduction
- 👍 Calming and relaxing sessions
- 💡 Helpful for managing stress and anxiety
- 👍 Positive affirmations and education
- 🚀 Quick improvements seen by some users
Room to improve
- 🔁 Repetitive nature of sessions
- 💰 Expensive subscription cost
- 🔍 Lack of customization options
- 🐛 Technical issues with app functionality
Bugs and requests
Fast Tract Diet
Reported bugs
14 issues- 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
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- App gives different FP scores for the same food
- App closes when hitting the back button
- First item entered in a new meal ends up on the previous meal
- App closes when trying to change number of servings on a recipe
- Custom added foods show up blank in recipes
- App freezes or doesn't respond
- FP calculator sliders only work for glycemic index
- App stopped charging iPhone 6 when connected
- Data not transferred to new iPad after update
Requested features
17 requests- 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)
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- Add custom symptoms
- Include calorie and protein content
- Integration with book recipes
- Add multiple items at once when tracking food
- Alphabetical order for category lists
- Integration of Glycemic Index lists or links
- Inclusion of recipes from the book
- Add sample recipes
- Add custom foods with less effort
- Dark mode
- More whole foods in the list
- Add vegan meal replacements/supplements
Nerva
Reported bugs
3 issues- App getting stuck on certain days
- Difficulty accessing previous sessions
- Inconsistent user experience across devices
Requested features
4 requests- More variety in guided visualizations
- Ability to skip or replace certain sessions
- Maintenance plan with reduced pricing
- Offline access to recordings
In-app purchases
Fast Tract Diet
No in-app purchases
Nerva
- Nerva IBS program (Monthly)7 Days trial$99.001 Month
- Nerva IBS program (3 Month)7 Days trial$149.003 Months
- 30% Off Nerva IBS (3 Month)7 Days trial$149.003 Months
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- Nerva Full Access7 Days trial$199.001 Year









