# Probiotics Guide. vs Viko

The clearest difference is ads: Viko at none against Probiotics Guide.'s shown. Viko also leads on update cadence (weekly vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Probiotics Guide. sells 2 in-app purchases, starting at $1.99 per month and Viko sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Probiotics Guide. ships an update every 2 weeks, Viko weekly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Probiotics Guide. | Viko |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 160 MB | 45 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Olga Ivanova](https://appshunter.io/developer/1733570435) | [H2Tech](https://appshunter.io/developer/1830983745) |

## What reviewers say

### 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 |


### Viko

[App page](https://appshunter.io/ios/app/viko/id6753932320)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gói cơ bản | $2.99 | per month |
| Gói chuyên sâu | $6.99 | per month |
| Gói bổ trợ | $9.99 | per month |


## Frequently asked questions

### Is Probiotics Guide. free?

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

### Is Viko free?

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

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

Probiotics Guide. shows ads; Viko does not.

### Which is updated more often, Probiotics Guide. or Viko?

Probiotics Guide. ships an update every 2 weeks, and Viko weekly. Most recently, Probiotics Guide. was updated on October 14, 2026 and Viko on October 2, 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.*