diff --git a/Source/Extensions/Foundation/BoolExtensions.swift b/Source/Extensions/Foundation/BoolExtensions.swift
index 73a6fa7..cc78810 100644
--- a/Source/Extensions/Foundation/BoolExtensions.swift
+++ b/Source/Extensions/Foundation/BoolExtensions.swift
@@ -9,6 +9,14 @@ public extension Bool {
         }
     }
     
+    public init?(yesNoString: String) {
+        switch yesNoString.uppercased() {
+        case "YES": self = true
+        case "NO": self = false
+        default: return nil
+        }
+    }
+    
     public init?(oneZeroString: String) {
         switch oneZeroString {
         case "1": self = true
@@ -45,6 +53,10 @@ public extension Bool {
         return self ? "On" : "Off"
     }
     
+    public var yesNoString: String {
+        return self ? "Yes" : "No"
+    }
+    
     public var trueFalseString: String {
         return self ? "True" : "False"
     }
diff --git a/Tests/Extensions/Foundation/BoolExtensionsTests.swift b/Tests/Extensions/Foundation/BoolExtensionsTests.swift
index 5b0ea28..8c2f93a 100644
--- a/Tests/Extensions/Foundation/BoolExtensionsTests.swift
+++ b/Tests/Extensions/Foundation/BoolExtensionsTests.swift
@@ -11,6 +11,14 @@ public class BoolExtensionsTests: XCTestCase {
         XCTAssertEqual(Bool(onOffString: "Off"), false)
         XCTAssertNil(Bool(onOffString: "caca"))
 
+        XCTAssertEqual(Bool(yesNoString: "yes"), true)
+        XCTAssertEqual(Bool(yesNoString: "YES"), true)
+        XCTAssertEqual(Bool(yesNoString: "Yes"), true)
+        XCTAssertEqual(Bool(yesNoString: "no"), false)
+        XCTAssertEqual(Bool(yesNoString: "NO"), false)
+        XCTAssertEqual(Bool(yesNoString: "No"), false)
+        XCTAssertNil(Bool(yesNoString: "caca"))
+        
         XCTAssertEqual(Bool(oneZeroString: "1"), true)
         XCTAssertEqual(Bool(oneZeroString: "0"), false)
         XCTAssertNil(Bool(oneZeroString: "caca"))
@@ -47,6 +55,11 @@ public class BoolExtensionsTests: XCTestCase {
         XCTAssertEqual(true.onOffString, "On")
     }
 
+    public func testYesNoString() {
+        XCTAssertEqual(false.yesNoString, "No")
+        XCTAssertEqual(true.yesNoString, "Yes")
+    }
+    
     public func testTrueFalseString() {
         XCTAssertEqual(false.trueFalseString, "False")
         XCTAssertEqual(true.trueFalseString, "True")