diff --git a/mobile/kotlin.kt b/mobile/kotlin.kt
new file mode 100644
index 0000000..18ff717
--- /dev/null
+++ b/mobile/kotlin.kt
@@ -0,0 +1,264 @@
+// Kotlin is a statically typed programming language for modern multiplatform applications.
+
+// Mutability
+var mutableString: String = "Adam"
+val immutableString: String = "Adam"
+val inferredString = "Adam"
+
+// Strings
+val name = "Adam"
+val greeting = "Hello, " + name
+val greetingTemplate = "Hello, $name"
+val interpolated = "Hello, ${name.toUpperCase()}"
+
+// Numbers
+val intNum = 10
+val doubleNum = 10.0
+val longNum = 10L
+val floatNum = 10.0F
+
+// Booleans
+val trueBoolean = true
+val falseBoolean = false
+val andCondition = trueBoolean && falseBoolean
+val orCondition = trueBoolean || falseBoolean
+
+// Static Fields
+class Person {
+    companion object {
+        val NAME_KEY = "name_key"
+    }
+}
+
+val key = Person.NAME_KEY
+
+
+// Nullable properties
+val cannotBeNull: String = null // Invalid
+val canBeNull: String? = null // Valid
+
+val cannotBeNull: Int = null // Invalid
+val canBeNull: Int? = null // Valid
+
+// Checking for null
+val name: String? = "Adam"
+
+if (name != null && name.length > 0) {
+    print("String length is ${name.length}")
+} else {
+    print("String is empty.")
+}
+
+// Safe Operator
+val nullableStringLength: Int? = nullableString?.length
+val nullableDepartmentHead: String? = person?.department?.head?.name
+
+// Elvis Operator
+val nonNullStringLength: Int = nullableString?.length ?: 0
+val nonNullDepartmentHead: String = person?.department?.head?.name ?: ""
+val nonNullDepartmentHead: String = person?.department?.head?.name.orEmpty()
+
+// Safe Casts
+// Will not throw ClassCastException
+val nullableCar: Car? = (input as? Car)
+
+/// Collections
+
+// Creation
+val numArray = arrayOf(1, 2, 3)
+val numList = listOf(1, 2, 3)
+val mutableNumList = mutableListOf(1, 2, 3)
+
+// Accessing
+val firstItem = numList[0]
+val firstItem = numList.first()
+val firstItem = numList.firstOrNull()
+
+// Maps
+val faceCards = mutableMapOf("Jack" to 11, "Queen" to 12, "King" to 13)
+val jackValue = faceCards["Jack"] // 11
+faceCards["Ace"] = 1
+
+// Mutability
+val immutableList = listOf(1, 2, 3)
+val mutableList = immutableList.toMutableList()
+
+val immutableMap = mapOf("Jack" to 11, "Queen" to 12, "King" to 13)
+val mutableMap = immutableMap.toMutableMap()
+
+// Iterating
+for (item in myList) {
+    print(item)
+}
+
+myList.forEach {
+    print(it)
+}
+
+myList.forEachIndexed { index, item -> 
+    print("Item at $index is: $item")
+}
+
+// Filtering & Searching
+val evenNumbers = numList.filter { it % 2 == 0 }
+val containsEven = numList.any { it % 2 == 0 }
+val containsNoEvens = numList.none { it % 2 == 0 }
+val containsNoEvens = numList.all { it % 2 == 1 }
+val firstEvenNumber: Int = numList.first { it % 2 == 0 }
+val firstEvenOrNull: Int? = numList.firstOrNull { it % 2 == 0 }
+// Note: it is the implicit name for a single parameter.
+
+/// Functions
+
+// Parameters & Return Types
+fun printName() {
+    print("Adam")
+}
+
+fun printName(person: Person) {
+    print(person.name)
+}
+
+fun getGreeting(person: Person): String {
+    return "Hello, ${person.name}"
+}
+
+fun getGreeting(person: Person): String = "Hello, ${person.name}"
+fun getGreeting(person: Person) = "Hello, ${person.name}"
+
+// Higher Order Functions
+fun callbackIfTrue(condition: Boolean, callback: () -> Unit) {
+    if (condition) {
+        callback()
+    }
+}
+
+callbackIfTrue(someBoolean) {
+    print("Condition was true")
+}
+
+/ Extension Functions
+fun Int.timesTwo(): Int {
+    return this * 2
+}
+
+val four = 2.timesTwo()
+
+// Default Parameters
+fun getGreeting(person: Person, intro: String = "Hello,") {
+    return "$intro ${person.name}"
+}
+
+// Returns "Hello, Adam"
+val hello = getGreeting(Person("Adam"))
+
+// Returns "Welcome, Adam"
+val welcome = getGreeting(Person("Adam"), "Welcome,")
+
+// Named Parameters
+class Person(val name: String = "", age: Int = 0)
+
+// All valid
+val person = Person()
+val person = Person("Adam", 100)
+val person = Person(name = "Adam", age = 100)
+val person = Person(age = 100)
+val person = Person(age = 100, name = "Adam")
+
+// Static Functions
+class Fragment(val args: Bundle) {
+    companion object {
+        fun newInstance(args: Bundle): Fragment {
+            return Fragment(args)
+        }
+    }
+}
+
+val fragment = Fragment.newInstance(args)
+// Companion Objects
+
+
+// Classes
+// Primary Constructor
+class Person(val name: String, val age: Int)
+val adam = Person("Adam", 100)
+
+// Secondary Constructors
+class Person(val name: String) {
+    private var age: Int? = null
+
+    constructor(name: String, age: Int) : this(name) {
+        this.age = age
+    }
+}
+
+// Above can be replaced with default params
+class Person(val name: String, val age: Int? = null)
+
+// Inheritance & Implementation
+open class Vehicle
+class Car : Vehicle()
+
+interface Runner {
+    fun run()
+}
+
+class Machine : Runner {
+    override fun run() {
+        // ...
+    }
+}
+// Control Flow
+If Statements
+if (someBoolean) {
+    doThing()
+} else {
+    doOtherThing()
+}
+
+// For Loops
+for (i in 0..10) { } // 1 - 10
+for (i in 0 until 10) // 1 - 9
+(0..10).forEach { }
+for (i in 0 until 10 step 2) // 0, 2, 4, 6, 8
+
+When Statements
+when (direction) {
+    NORTH -> {
+        print("North")
+    }
+    SOUTH -> print("South")
+    EAST, WEST -> print("East or West")
+    "N/A" -> print("Unavailable")
+    else -> print("Invalid Direction")
+}
+While Loops
+while (x > 0) {
+    x--
+}
+
+do {
+    x--
+} while (x > 0)
+
+// Destructuring Declarations
+// Objects & Lists
+val person = Person("Adam", 100)
+val (name, age) = person
+
+val pair = Pair(1, 2)
+val (first, second) = pair
+
+val coordinates = arrayOf(1, 2, 3)
+val (x, y, z) = coordinates
+
+// ComponentN Functions
+class Person(val name: String, val age: Int) {
+	operator fun component1(): String {
+		return name
+	}
+
+	operator fun component2(): Int {
+		return age
+	}
+}
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