Gacha Calc: Probability Sim
Calculate Gacha Odds & Costs
Free · Designed for iPad. Not verified for macOS.
Are you a fan of in-game gacha draws, opening your wallet based solely on the hope of "This time, it has to drop"?
The [Gacha Calc: Probability Sim] is your essential tool, helping you predict spending and make smarter drawing plans based on mathematical probability, not just intuition.
Key Features
- Accurate Probability Calculation (Independent Trials): Simply enter the item's drop rate (%) and your desired number of attempts. The app instantly calculates the "Probability of acquiring at least one item."
- Predictive Table: We provide an easy-to-read table showing the minimum number of attempts and the estimated cost required to reach your target probability milestones (e.g., 50%, 90% success rate).
- History Tracking: Conveniently save your calculation results and check your simulation data anytime in the history log, allowing you to track your past strategies.
- Clean UI/UX: The app offers a simple, intuitive design that anyone can use—no complex formulas, just instant input and immediate results.
Stop Overspending Now!
Instead of relying on vague expectations, use the [Gacha Calc: Probability Sim] to predict your goal achievement rate and optimize your spending.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved input removal
The developer, hyeokjin cho, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- hyeokjin cho
- Size
- 37.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 14.0.0 or later.
- iPhone
Requires iOS 14.0.0 or later. - iPad
Requires iPadOS 14.0.0 or later. - iPod touch
Requires iOS 14.0.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Korean
- Age Rating
16+
- 16+
- Contains
Unrestricted Web Access
Advertising
- Copyright
- 2025 © Simplewoody