# FoldTheorem: Origami Checker

> Validate origami flat-foldability using math and geometric theorems.

Canonical page: [https://chrome-stats.com/d/com.sbse.foldtheorem](https://chrome-stats.com/d/com.sbse.foldtheorem)

## Overview

- **ID:** `com.sbse.foldtheorem`
- **Platform:** Android
- **Type:** Android app
- **Status:** Removed
- **Publisher:** SBS ENTERPRISES PRIVATE LIMITED
- **Category:** PRODUCTIVITY
- **Downloads:** 11
- **Version:** 1.0
- **Last updated:** 2026-06-27
- **First published:** 2026-06-27
- **Publisher country:** PK
- **Size:** 11 MB
- **Data as of:** 2026-08-21
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.sbse.foldtheorem)
- **Privacy policy:** [https://sbsenterprisesprivatelimite.blogspot.com/p/privacy-policy.html](https://sbsenterprisesprivatelimite.blogspot.com/p/privacy-policy.html)

## Description

Explore the geometry of paper folding with FoldTheorem, a specialized tool designed for origami enthusiasts, students, and professional designers. This application provides a robust environment to analyze the flat-foldability of vertex patterns using established mathematical principles.<br><br>Whether you are designing a complex original model or studying computational geometry, FoldTheorem helps you verify your designs instantly. By entering mountain and valley creases, you can determine if a vertex can be folded completely flat without paper tension or self-intersection.<br>Key Features:<br>• Interactive Vertex Design: Use the visual dial to build and adjust crease patterns with high precision. <br>• Live Analysis Dashboard: Get instant feedback as you work. The app calculates total angles and foldability status as you add or modify creases. <br>• Mathematical Validation: Full support for Maekawa’s Theorem and Kawasaki’s Theorem, providing clear pass/fail results for each rule. <br>• Quick-Add Presets: Speed up your workflow with one-tap buttons for standard origami angles like 22.5°, 45°, 60°, and 90°. <br>• Pattern History: Save your successful patterns to a personal history for later reference or further study. <br>• Educational Tool: Learn the logic behind flat-foldability through an intuitive interface that makes abstract geometric concepts tangible.<br><br>FoldTheorem bridges the gap between artistic creativity and mathematical rigor. Perfect for anyone looking to deepen their understanding of how complex origami structures behave in 2D space.

## Permissions and access

### Permissions

- `com.android.vending.CHECK_LICENSE`
- `com.sbse.foldtheorem.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.sbse.foldtheorem)