BySide: D-Day Countdown
Naegyeotui Lifestyle iPhoneiPadiPod touch
BySide: D-Day Countdown is a free Lifestyle app for iPhone and iPad by Naegyeotui. Requires iOS 16.4. Updated October 16, 2026.
- Price
- Free
- on the App Store
- Size
- 52 MB
- Age 4+
- Updated
- Oct 16
- 2026 · v1.4.1
Screenshots
About BySide: D-Day Countdown
Keep the days that matter by your side. The day you met, Mom's birthday, your wedding anniversary, an exam or a trip. BySide counts down to — or up from — the days that matter, and reminds you before they arrive. ■ Timeline and calendar • See upcoming days grouped by this week, this month and each month, with a badge on 100-day milestones. • Jump to any month or year in the Calendar tab, and tap a date to start a new D-Day. • Holidays from your device calendar appear in the calendar and widgets. ■ A D-Day album decorated with your photos • Add a photo to each D-Day and browse them as photo tiles, like an album. • Crop and rotate each photo to fit just right. • Choose from four views — list, cards, album or calendar. Your last view is remembered. ■ A reminder every 100 days • Count your days together with D+, and 100, 200 and 1,000-day milestones are calculated for you. • Get reminded on the day, and 1, 3 or 7 days before. • Set a different reminder time for each D-Day. ■ Repeats on its own • Birthdays and anniversaries repeat yearly; paydays and card bills repeat monthly. ■ Your first D-Day, together • When you first open the app, just pick what kind of day it is. Relationship, birthday, or exam & deadline — the settings are filled in to match. ■ Home screen widgets • One D-Day shown big with its photo, several D-Days in a list, or this month's calendar. • Style the widgets to match your wallpaper. • Show the days left for a chosen D-Day as a badge on the app icon. ■ Share as photo cards • Make a card with a photo background and send it to friends in your favorite messaging or social apps. • Save the card image straight to your photo library. ■ Neat and tidy • Create your own categories like Couple, Family or Work, with colors and emoji • Sort by nearest, manually, recently added or by name, and pin to top • D-Days you won't need afterward, like exams and deadlines, can be cleared automatically the next day • Memos, search, month/year view and dark mode ■ Use with peace of mind • Start right away, no sign-up • Your D-Days and photos are stored only on your iPhone • Backup files include your photos, so everything comes with you to a new phone ■ Remove ads with a one-time purchase • Removes all ads in the app. • Not a subscription — no recurring charges. All features are free; the free version shows ads. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://boksday.github.io/dday/privacy/ Contact: [email protected]
What’s new
Version 1.4.1 · Updated October 16, 2026
• Cleaner category chips, and the selection glides from one to the next. • List, card, album and timeline views switch smoothly, and D-Days slide in as they appear. • Small touches: cards press in, checkmarks pop, and the big number on each D-Day grows in.
App privacy
The developer, Naegyeotui, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
Used for: Third-Party Advertising, Analytics, App Functionality
Alternatives to BySide: D-Day Countdown
Looking for apps like BySide: D-Day Countdown? Here are 6 similar apps on the App Store. The highest rated is 성경암송수첩 (5.0/5), and all 6 are free to download.
-
KNK지하식당 - 오늘의 메뉴
-
D-Day Keep: Countdown Widget
-
Huma-i
-
미즘-출퇴근길 돈벌기, 반값퀵
-
성경암송수첩
5.0
-
Dayte - Countdown Widgets
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| BySide: D-Day Countdown | – | Free | October 16, 2026 | |
| KNK지하식당 - 오늘의 메뉴 | – | Free | Apr 8, 2026 | Compare |
| D-Day Keep: Countdown Widget | – | Free | Oct 28, 2026 | Compare |
| Huma-i | – | Free | Nov 14, 2023 | Compare |
| 미즘-출퇴근길 돈벌기, 반값퀵 | – | Free | Dec 22, 2025 | Compare |
| 성경암송수첩 | 5.0 / 5 (2) | Free | Oct 10, 2026 | Compare |
| Dayte - Countdown Widgets | 5.0 / 5 (1) | Free | Oct 21, 2026 | Compare |