# WindowViewer vs Birthyay

The clearest difference is update cadence: Birthyay at every 3 weeks against WindowViewer's every 3 months. 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.

WindowViewer ships an update every 3 months, Birthyay every 3 weeks. The most recent releases landed on September 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | WindowViewer | Birthyay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 138 MB | 73 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Digital Building Solutions GmbH](https://appshunter.io/developer/1456095004) | [Pillowcode Limited](https://appshunter.io/developer/1795497339) |

## What reviewers say

### WindowViewer

[App page](https://appshunter.io/ios/app/windowviewer/id1606181528)

**In-app purchases:** none


### Birthyay

[App page](https://appshunter.io/ios/app/birthyay/id6741772804)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WindowViewer free?

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

### Is Birthyay free?

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

### Do WindowViewer or Birthyay have ads?

Neither WindowViewer nor Birthyay shows ads.

### Which is updated more often, WindowViewer or Birthyay?

WindowViewer ships an update every 3 months, and Birthyay every 3 weeks. Most recently, WindowViewer was updated on September 10, 2026 and Birthyay on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*