# Kongres Zero vs Viraloo

The clearest difference is in-app purchases: Kongres Zero at none against Viraloo's 4. Viraloo's advantage is update cadence (every 8 days vs every 8 months) and iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Viraloo sells 4 in-app purchases, starting at $3.99 per month. Kongres Zero asks for nothing beyond the download.

Kongres Zero ships an update every 8 months, Viraloo every 8 days. The most recent releases landed on September 10, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Kongres Zero | Viraloo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 8 days** |
| Size | 50 MB | 81 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CLAWROCK](https://appshunter.io/developer/1694733924) | [Piotr Kisiel](https://appshunter.io/developer/1820945557) |

## What reviewers say

### Kongres Zero

[App page](https://appshunter.io/ios/app/kongres-zero/id6741068874)

**In-app purchases:** none


### Viraloo

[App page](https://appshunter.io/ios/app/viraloo/id6747347833)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP account | $3.99 | per month |
| 100 stars | $2.99 | one-time |
| 250 stars | $5.99 | one-time |
| 500 gwiazdek | $9.99 | one-time |


## Frequently asked questions

### Is Kongres Zero free?

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

### Is Viraloo free?

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

### Do Kongres Zero or Viraloo have ads?

Neither Kongres Zero nor Viraloo shows ads.

### Which is updated more often, Kongres Zero or Viraloo?

Kongres Zero ships an update every 8 months, and Viraloo every 8 days. Most recently, Kongres Zero was updated on September 10, 2026 and Viraloo on September 12, 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.*