1Stack
I'm No. 1 in the World
Free · Designed for iPad. Not verified for macOS.
Stack with one tap, build perfect combos, and climb the world ranking.
Tap at the right moment, stack each moving block, and build the tallest tower you can.
1Stack is a focused one-hand arcade game for quick runs. Precise placements preserve the tower, perfect drops build combos, and every miss ends the run.
Features:
• Simple one-tap controls
• Normal and daily challenge modes
• Daily, weekly, country, and world rankings
• Perfect-drop combos and increasing difficulty
• Local best score with offline gameplay
• Korean, English, Japanese, and Spanish
• No ads
Internet access is optional. Core gameplay and local best scores remain available offline.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, KCREW, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- KCREW
- Size
- 51.4 MB
- Category
- Action
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 KCREW