# Onseol: Countdown Widget — Days since, birthday & couple

> Days since, birthday & couple (iPhone/iPad app by Mustafa Salim Erek.)

- Source: https://appshunter.io/ios/app/onseol-countdown-widget/id6782953468 (this page in markdown: same URL + `.md`)
- Developer: [Mustafa Salim Erek](https://appshunter.io/developer/1896175573)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 26 MB
- Languages: American English
- Released: 2026-06-24
- Data updated: 2026-08-04
- User reviews in markdown: https://appshunter.io/ios/app/onseol-countdown-widget/id6782953468/reviews.md

## What is Onseol?

Onseol counts the days that matter — no account, no sign-up.
Every date lives only on your phone.

• Korean-style D-day — D-DAY, D-100, and days-since counted from day 1. 100-day and yearly milestones, automatically.
• Lunar (음력) birthdays & memorials — converted to the solar date each year.
• Home & Lock Screen widgets — they survive iOS updates and stay date-sorted.
• Reminders — D-7, D-DAY, and milestones, all on device.

No subscription. No account. A one-time Pro removes the ads and lifts the event limit.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Onseol Pro | $9.99 | one-time |



## Version history (last 4 releases)

### 1.1.0 — 2026-08-01

Free use is now ad-supported: a short ad after you save an event, and you can watch one to add a single event beyond the free five. A one-time Pro removes the ads and lifts the limit for good. Your dates still never leave your phone.

### 1.0.3 — 2026-07-21

Small refinements and reliability improvements.

### 1.0.1 — 2026-06-25

Lunar (음력) birthdays and anniversaries now roll forward to the correct solar date every year — on your widgets and reminders too. Plus more accent colours to make each day yours.

### 1.0.0 — 2026-06-24

No release notes.

## More apps by Mustafa Salim Erek

- [Squeezly: Compressor & Cleaner](https://appshunter.io/ios/app/squeezly-compressor-and-cleaner/id6766046501)
- [PDF Scanner & Editor: Privio](https://appshunter.io/ios/app/pdf-scanner-and-editor-privio/id6769985472)
- [Daylit: Honest Daily Planner](https://appshunter.io/ios/app/daylit-honest-daily-planner/id6778850267)
- [Evenfall: Reflective Journal](https://appshunter.io/ios/app/evenfall-reflective-journal/id6780204063)
- [Naqio: Halal Food Scanner](https://appshunter.io/ios/app/naqio-halal-food-scanner/id6782854289)

All apps by Mustafa Salim Erek: https://appshunter.io/developer/1896175573

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-04.*