Honest comparison
Phase vs Nerva
Nerva is gut-directed hypnotherapy for IBS. Phase is a guided low-FODMAP app built around the three-phase protocol. Here’s how they actually differ — and who each one is for.
At a glance
| Phase | Nerva | |
|---|---|---|
| Approach | Dietary protocol (low-FODMAP) | Gut-directed hypnotherapy (mind-body) |
| Food database & checking | Hundreds of foods with serving thresholds | Not a food tool |
| Guided program | 3-phase FODMAP journey | 6-week hypnotherapy program |
| Best used | To find your food triggers and tolerances | To calm a stress-driven gut |
What Nerva is
Nerva is a gut-directed hypnotherapy program: a structured series of daily audio sessions designed to calm the gut-brain axis and reduce IBS symptoms without changing what you eat. It's a fundamentally different approach from a diet app.
Where it shines
- +Targets the gut-brain connection, which is a real driver of IBS symptoms
- +Diet-free — appealing if food restriction feels overwhelming or you've already tried it
- +Structured daily program that's easy to follow
- +Backed by a growing body of evidence for gut-directed hypnotherapy
Where it’s limited
- –It isn't a food tool — no FODMAP data, food checking, or meal logging
- –Won't help you decide whether a specific food is safe or run a reintroduction
- –Best thought of as complementary to, not a replacement for, dietary work
Best for
People whose symptoms are strongly stress-driven, or who want a non-diet approach alongside their eating changes.
The bottom line
Nerva and Phase solve different problems and pair well. If food is clearly triggering your symptoms, a FODMAP approach like Phase is where to start. If stress and the gut-brain loop dominate, Nerva's hypnotherapy may help — and many people benefit from doing both.
Compare other apps
Comparison based on each app’s publicly described features and approach; details and pricing change, so check each app’s own site before deciding. This page is not medical advice.