# Nerva vs Bia

The clearest difference is monetization model: Nerva at free with in-app purchases against Bia's subscription. Nerva also leads on update cadence (weekly vs every 2 months) and ratings volume (15K vs 21). Bia's advantage is review sentiment (86% vs 73%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Nerva sells 4 in-app purchases, starting at $43.99 per month and Bia sells 5 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Nerva against 4.7 for Bia. That said, the two scores are not equally well evidenced: Nerva has 15K ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 73% of Nerva's written reviews are positive against 86% of Bia's.

Nerva ships an update weekly, Bia every 2 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Nerva | Bia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15K ratings)](https://appshunter.io/ios/app/nerva-gut-brain-program/id1467398796/reviews) | [4.7 (21 ratings)](https://appshunter.io/ios/app/bia/id6740422896/reviews) |
| Number of ratings | **15K** | 21 |
| Positive reviews | 72.5% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 134 MB | 1 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Mindset Health Pty Ltd](https://appshunter.io/developer/1255073245) | [MyTherapy LLC](https://appshunter.io/developer/1789888469) |

## What reviewers say

### 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) | $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


### Bia

[App page](https://appshunter.io/ios/app/bia/id6740422896)

This interactive tool guides users through a step-by-step process to understand and overcome phobias. It utilizes proven therapeutic techniques and offers tailored versions for adults and children, with options to connect with a therapist.

**Highlights:** Step-by-step phobia overcoming guidance, Exposure and Response Prevention (ERP) techniques, Acceptance and Commitment Therapy (ACT) principles, Cognitive Behavioral Therapy (CBT) methods, Tailored versions for adults and kids, Therapist connection option, Parental resources

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $29.99 | per month |
| Monthly | $29.99 | per month |
| Yearly | $149.99 | per year |
| Yearly | $149.99 | per year |
| Lifetime | $299.99 | one-time |


## Frequently asked questions

### Is Nerva free?

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

### Is Bia free?

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

### Which has better reviews, Nerva or Bia?

Nerva and Bia are both rated 4.7 out of 5 on the App Store, from 15K and 21 ratings respectively.

### Do Nerva or Bia have ads?

Neither Nerva nor Bia shows ads.

### Which is updated more often, Nerva or Bia?

Nerva ships an update weekly, and Bia every 2 months. Most recently, Nerva was updated on October 3, 2026 and Bia on October 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.*