# Birthdays Countdown vs DayMark

The clearest difference is ads: DayMark at none against Birthdays Countdown's shown. DayMark also leads on update cadence (daily vs every 3 months). Birthdays Countdown's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. Birthdays Countdown sells 4 in-app purchases, starting at $1.99 per month and DayMark sells 1 in-app purchase, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Birthdays Countdown ships an update every 3 months, DayMark daily. The most recent releases landed on November 6, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Birthdays Countdown | DayMark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (46 ratings)](https://appshunter.io/ios/app/birthdays-countdown/id1254766135/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 19 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [tadashi atoji](https://appshunter.io/developer/431510057) | [wataru takahashi](https://appshunter.io/developer/1896618750) |

## What reviewers say

### Birthdays Countdown

[App page](https://appshunter.io/ios/app/birthdays-countdown/id1254766135)

This app helps you keep track of upcoming birthdays with timely notifications. Customize reminder settings and choose whether to display years and ages. An optional add-on can remove ads and increase widget capacity.

**Highlights:** Birthday countdowns, Customizable notifications, Year and age display options, Widget customization, Ad removal option

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version (monthly) | $1.99 | per month |
| Pro version(Year) | $19.99 | per year |
| Increase widget cells | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |


### DayMark

[App page](https://appshunter.io/ios/app/daymark-anniversary-countdown/id6819137408)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 無制限プラン | $0.49 | per month |


## Frequently asked questions

### Is Birthdays Countdown free?

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

### Is DayMark free?

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

### Do Birthdays Countdown or DayMark have ads?

Birthdays Countdown shows ads; DayMark does not.

### Which is updated more often, Birthdays Countdown or DayMark?

Birthdays Countdown ships an update every 3 months, and DayMark daily. Most recently, Birthdays Countdown was updated on November 6, 2026 and DayMark on October 29, 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.*