# Day2U vs 49재 계산기

The clearest difference is in-app purchases: 49재 계산기 at none against Day2U's 1. 49재 계산기 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Day2U sells 1 one-off in-app purchase. 49재 계산기 asks for nothing beyond the download.

Day2U ships an update fortnightly, 49재 계산기 every 4 weeks. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Day2U | 49재 계산기 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Size | 25 MB | 41 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CHUNGKIL KIM](https://appshunter.io/developer/960187999) | [Seulki Eom](https://appshunter.io/developer/1718927408) |

## What reviewers say

### Day2U

[App page](https://appshunter.io/ios/app/day2u-d-day-countdown/id1456616742)

**Features:** macOS Compatibility, iMessage stickers

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $3.99 | one-time |


### 49재 계산기

[App page](https://appshunter.io/ios/app/49-49/id6473444329)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Day2U free?

Day2U is free to download, with in-app purchases available.

### Is 49재 계산기 free?

49재 계산기 is free to download, with no in-app purchases.

### Do Day2U or 49재 계산기 have ads?

Both Day2U and 49재 계산기 show ads.

### Which is updated more often, Day2U or 49재 계산기?

Day2U ships an update fortnightly, and 49재 계산기 every 4 weeks. Most recently, Day2U was updated on September 17, 2026 and 49재 계산기 on September 10, 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.*