# Open vs HealthStack

The clearest difference is in-app purchases: Open at none against HealthStack's 4. Open also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Open | HealthStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/healthstack-scan-supplements/id6751443430/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 137 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Elaros](https://appshunter.io/developer/1544802505) | [purpurasalgada](https://appshunter.io/developer/1835145810) |

## What reviewers say

### Open

[App page](https://appshunter.io/ios/app/open-oh/id6502186049)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Open free?

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

### Is HealthStack free?

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

### Do Open or HealthStack have ads?

HealthStack shows ads; Open does not.

### Which is updated more often, Open or HealthStack?

Open ships an update every 2 weeks, and HealthStack every 2 weeks. Most recently, Open was updated on October 8, 2026 and HealthStack on October 3, 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.*