DDays vs Mo
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
DDays
Track important upcoming events with timely notifications. View countdowns directly on your home screen and lock screen widgets.
- D-day tracking
- Advance notifications
- Home screen widget
- Lock screen widget
- Live activity display
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Meet Simple D-day! You can check notifications and live-activity 24 hours in advance. Check D-Day through the Home screen, the lock screen widget!
Mo
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[A place where all nationalities gather without any hesitation, Mo:S] Mo:S is a multicultural community for daily life in Korea. We welcome everyone who is studying, working, or dreaming of living in Korea! β Home We handpick and provide useful information for living in Korea. You can also check out this week's HOT posts! β Board From boards for housing, visas, and legal issues, to boards for students, professionals, dating, marriage, and parenting - we have a wide range of topics covered. Pin your frequently used boards for easy access! β Companion βNew to Korea and wondering where to make friends?β Enjoy hobbies and connect with others through online and offline gatherings. Mo:S offers various categories to help you enjoy hobbies together! β Vocabulary We provide a vocabulary list of must-know abbreviations and memes for living in Korea. Itβs a space where you can ask about and help each other with Korean words, abbreviations, and trending phrases! β Chatting With βone-on-one chatβ and βgroup chat,β you can enjoy faster and more fun real-time communication! Mo:S will make your experience in Korea more meaningful and enjoyable. Download now and join the fun! * * * * * β App Access Permissions [Required Permissions] - None [Optional Permissions] - Photos: Needed to attach images to boards or Companion, or to change profile pictures. - Push Notifications: Needed to receive notifications for content, services, and event benefits. Homepage : https://teammos.notion.site/Mo-S-36be11e4ef854385a2457fdd34da0b53 Terms of Service : https://teammos.notion.site/6731b1f978ba4b68a9af95eabad1b87c Privacy Policy : https://teammos.notion.site/Privacy-Policy-80639f3d4e03489ba677c15e425c02b8 * * * * * β Feedback and Inquiries β» You can conveniently send feedback to Mo:S via βSend Feedbackβ (within the My Page tab)! We appreciate your interest! Customer Inquiries : seohongju7733@gmail.com Development Inquiries : wlgnsdl815@gmail.com Business Inquiries : seohongju7733@gmail.com
Screenshots
Verdict
The clearest difference is device support: Mo at 3 against DDays's 1. Mo also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DDays ships an update every 2 weeks, Mo every 3 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.
| Parameter | DDays | Mo |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 2 weeks β better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 17.0 | 12.0 β better |
| Further details β not scored | ||
| Size | 5 MB | 76 MB |
| Age rating | 4+ | 17+ |
| Developer | Lee Jaeho | Jihoon Park |
In-app purchases
DDays
No in-app purchases
Mo
No in-app purchases









