# Bernstein vs Probiotics Guide.

The clearest difference is in-app purchases: Bernstein at none against Probiotics Guide.'s 2. Bernstein also leads on ads (none vs shown). Probiotics Guide.'s advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Probiotics Guide. sells 2 in-app purchases, starting at $1.99 per month. Bernstein asks for nothing beyond the download.

## The numbers

| Metric | Bernstein | Probiotics Guide. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 weeks |
| Size | 0 MB | 160 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Olga Ivanova](https://appshunter.io/developer/1733570435) |

## What reviewers say

### Bernstein

[App page](https://appshunter.io/ios/app/bernstein-vazirani-algorithm/id6457204574)

**Features:** macOS Compatibility

**In-app purchases:** none


### Probiotics Guide.

[App page](https://appshunter.io/ios/app/probiotics-guide/id6720753184)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription | $1.99 | per month |
| Sponsorship | $1.99 | one-time |


## Frequently asked questions

### Is Bernstein free?

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

### Is Probiotics Guide. free?

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

### Do Bernstein or Probiotics Guide. have ads?

Probiotics Guide. shows ads; Bernstein does not.

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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.*