Comparison

DDays vs Mo

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

DDays

Track important upcoming events with timely notifications. View countdowns directly on your home screen and lock screen widgets.

Highlights
  • D-day tracking
  • Advance notifications
  • Home screen widget
  • Lock screen widget
  • Live activity display
Read full description

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!

About

Mo

Features
Read full description

[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 β€˜New to Korea and wondering where to make friends?’ 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. It’s a space where you can ask about and help each other with Korean words, abbreviations, and trending phrases! β–  Chatting With β€˜one-on-one chat’ and β€˜group chat,’ 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 β€˜Send Feedback’ (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

DDays4 screens
Mo4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

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.

Scorecard2 real differences Β· 6 level
DDays versus Mo: the parameters behind the verdict, then further details
ParameterDDaysMo
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 2 weeks β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhoneiPhone, iPad, iPod β€” better
Requires iOS17.012.0 β€” better
Further details β€” not scored
Size5 MB76 MB
Age rating4+17+
DeveloperLee JaehoJihoon Park

In-app purchases

None

DDays

No in-app purchases

None

Mo

No in-app purchases

Questions

Is DDays free?
DDays is free to download, with no in-app purchases.
Is Mo free?
Mo is free to download, with no in-app purchases.
Do DDays or Mo have ads?
Neither DDays nor Mo shows ads.
Which is updated more often, DDays or Mo?
DDays ships an update every 2 weeks, and Mo every 3 weeks. Most recently, DDays was updated on November 3, 2026 and Mo on October 25, 2026.

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