# Probiotic Guide USA vs Sitara App

The clearest difference is update cadence: Sitara App at every 2 months against Probiotic Guide USA's every 6 months. Sitara App also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Probiotic Guide USA ships an update every 6 months, Sitara App every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Probiotic Guide USA | Sitara App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/probiotic-guide-usa/id1378720485/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 15 MB | 34 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [BH SOFT INC](https://appshunter.io/developer/1378719091) | [WEBSOFT TECHNOLOGY](https://appshunter.io/developer/1757848792) |

## What reviewers say

### Probiotic Guide USA

[App page](https://appshunter.io/ios/app/probiotic-guide-usa/id1378720485)

This clinical guide aids healthcare professionals in making informed decisions about probiotic therapy for patients. It translates scientific evidence into practical information, helping clinicians select the right product, dose, and formulation for specific indications.

**Highlights:** Clinical decision-making tool, Translates scientific evidence, Selects product, dose, formulation, Supports various indications, Annual review and updates

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

**In-app purchases:** none


### Sitara App

[App page](https://appshunter.io/ios/app/sitara-app/id6593691901)

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

**In-app purchases:** none


## Frequently asked questions

### Is Probiotic Guide USA free?

Probiotic Guide USA is free to download, with no in-app purchases.

### Is Sitara App free?

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

### Do Probiotic Guide USA or Sitara App have ads?

Neither Probiotic Guide USA nor Sitara App shows ads.

### Which is updated more often, Probiotic Guide USA or Sitara App?

Probiotic Guide USA ships an update every 6 months, and Sitara App every 2 months. Most recently, Probiotic Guide USA was updated on October 24, 2026 and Sitara App on October 25, 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.*