# CalAdvent vs Birthify

CalAdvent and Birthify are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CalAdvent ships an update every 4 months, Birthify every 7 months. The most recent releases landed on September 8, 2026 and May 18, 2026 respectively.

## The numbers

| Metric | CalAdvent | Birthify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Size | 28 MB | 33 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eric Smith](https://appshunter.io/developer/415133551) | [Burak Harun YILDIZ](https://appshunter.io/developer/1789220188) |

## What reviewers say

### CalAdvent

[App page](https://appshunter.io/ios/app/caladvent/id1439383338)

**Features:** macOS Compatibility

**In-app purchases:** none


### Birthify

[App page](https://appshunter.io/ios/app/birthify/id6741242799)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CalAdvent free?

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

### Is Birthify free?

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

### Do CalAdvent or Birthify have ads?

Neither CalAdvent nor Birthify shows ads.

### Which is updated more often, CalAdvent or Birthify?

CalAdvent ships an update every 4 months, and Birthify every 7 months. Most recently, CalAdvent was updated on September 8, 2026 and Birthify on May 18, 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.*