# HealthStack vs SONA VNS

The clearest difference is rating: HealthStack at 5.0 against SONA VNS's 2.0. SONA VNS's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. HealthStack sells 4 in-app purchases, starting at $5.99 per 7 days. SONA VNS asks for nothing beyond the download.

HealthStack holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

HealthStack ships an update every 2 weeks, SONA VNS fortnightly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HealthStack | SONA VNS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/healthstack-scan-supplements/id6751443430/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/sona-vns/id6756424780/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 137 MB | 120 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [purpurasalgada](https://appshunter.io/developer/1835145810) | [Mindspire Limited](https://appshunter.io/developer/1586140980) |

## What reviewers say

### HealthStack

[App page](https://appshunter.io/ios/app/healthstack-scan-supplements/id6751443430)

This app helps you manage your vitamin and supplement routine. It analyzes your specific products to identify potential risks and interactions, offering personalized AI-driven insights for safer and more effective supplementation.

**Highlights:** Intelligent AI assistant for personalized insights, Automatic safety checks for nutrient intake, Comprehensive view of total nutrient breakdown, Precision tracking of inventory and schedules, Doctor-ready PDF reports, Shareable supplement regimen

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Monthly | $14.99 | per month |
| Annual | $59.99 | per year |
| Lifetime | $99.99 | one-time |


### SONA VNS

[App page](https://appshunter.io/ios/app/sona-vns/id6756424780)

This app guides personalized, non-invasive vagus nerve stimulation sessions to support relaxation, sleep, and cognitive function. It tracks progress with analytics and integrates with wearables for deeper insights into your wellness journey.

**Highlights:** Personalized journey sessions, Daily taVNS for stress recovery, Guided audio and breathing exercises, Heart rate and HRV analytics, Wearable device integration, Progress tracking and streaks

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

**In-app purchases:** none


## Frequently asked questions

### Is HealthStack free?

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

### Is SONA VNS free?

SONA VNS is free to download, with no in-app purchases.

### Which has better reviews, HealthStack or SONA VNS?

HealthStack is rated higher. HealthStack averages 5.0 out of 5 from 1 ratings, while SONA VNS averages 2.0 from 1 ratings.

### Do HealthStack or SONA VNS have ads?

HealthStack shows ads; SONA VNS does not.

### Which is updated more often, HealthStack or SONA VNS?

HealthStack ships an update every 2 weeks, and SONA VNS fortnightly. Most recently, HealthStack was updated on October 20, 2026 and SONA VNS 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.*