Σ-Sigma is made and published by Hiroe Oshimura. AppBrain is an independent app data site and isn't affiliated with Hiroe Oshimura. The app name, icon, screenshots and description belong to Hiroe Oshimura and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- March 24, 2026
Rankings
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Also available on Google Play
Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- March 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- $0.99
- App size
- 18.1 MB
- Content rating
- Everyone
Technologies used by Σ-Sigma
About the app and developer
About Σ-Sigma
Σ-Sigma is a games app developed by Hiroe Oshimura.
User Ratings
The app has no ratings yet.
App Information
Σ-Sigma costs $0.99. The app size is 18.09 MB. The latest version available is 1.0. The last update was on March 24, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since March 2026.
Developer information for Hiroe Oshimura
Address:
Frequently asked questions about Σ-Sigma
Is Σ-Sigma free?
No. Σ-Sigma costs $0.99 on the App Store.
Is Σ-Sigma still available?
Yes. Σ-Sigma is on the App Store, and the last update we saw was on March 24, 2026.
How large is Σ-Sigma?
Σ-Sigma is 18.09 MB.
Is Σ-Sigma suitable for children?
App Store rates the content of Σ-Sigma as suitable for everyone.
Who made Σ-Sigma?
Σ-Sigma was developed by Hiroe Oshimura. It is listed in the games category on the App Store.
Store listing
By Hiroe Oshimura, from the App Store
Description by Hiroe Oshimura Written by the developer, not by AppBrain. Click to read.
Enter the target sum, number of cells, excluded digits, and required digits. The app instantly generates all valid combinations that match your conditions. No more manual calculations—focus on logic and move forward efficiently.
■ Key Features
• Generate combinations from cell count and sum
• Filter using excluded and required digits
• View all possible sets instantly
• Support for the 45 rule (total sum strategy)
• Clean and intuitive interface
■ Who it’s for
• Killer Sudoku players
• Advanced puzzle solvers
• Anyone who prefers logical deduction over guesswork
■ Concept
Σ is not a solver.
It is a thinking tool.
It clears your view, organizes possibilities, and helps you focus on logic.
Handle complex cages with confidence.
See all options at once and find the shortest path to the solution.