# Birthdays countdown vs JDay

The clearest difference is iOS requirement: JDay at 15.1 against Birthdays countdown's 18.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on September 20, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Birthdays countdown | JDay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Size | 8 MB | 40 MB |
| Requires iOS | 18.1 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ANDREI LEBEDEV](https://appshunter.io/developer/1814229946) | [Development17](https://appshunter.io/developer/1798461664) |

## What reviewers say

### Birthdays countdown

[App page](https://appshunter.io/ios/app/birthdays-countdown-widget/id6749833074)

**Features:** macOS Compatibility

**In-app purchases:** none


### JDay

[App page](https://appshunter.io/ios/app/jday/id6751944488)

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

**In-app purchases:** none


## Frequently asked questions

### Is Birthdays countdown free?

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

### Is JDay free?

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

### Do Birthdays countdown or JDay have ads?

Neither Birthdays countdown nor JDay shows ads.

### Which is updated more often, Birthdays countdown or JDay?

Birthdays countdown ships an update every 7 months, and JDay every 7 months. Most recently, Birthdays countdown was updated on September 20, 2026 and JDay on September 28, 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.*