diff --git a/app/build.gradle b/app/build.gradle
index e6aa6d3..7baf9e3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,9 +16,31 @@ android {
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
+    flavorDimensions 'price'
+
+    productFlavors{
+        free{
+            dimension "price"
+            resValue "string", "app_name", "Chrono Master Free"
+            applicationIdSuffix ".free"
+            versionNameSuffix "-free"
+        }
+        paid{
+            applicationId "com.equipo22.agenda.paid"
+            dimension "price"
+            resValue "string", "app_name", "Chrono Master Paid"
+            versionNameSuffix "-full"
+        }
+    }
+
     buildTypes {
+        debug{
+            applicationIdSuffix ".debug"
+            debuggable true
+        }
         release {
-            minifyEnabled false
+            minifyEnabled true
+            shrinkResources true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/app/src/free/java/com/equipo22/agenda/AdsFragment.kt b/app/src/free/java/com/equipo22/agenda/AdsFragment.kt
new file mode 100644
index 0000000..68c91d5
--- /dev/null
+++ b/app/src/free/java/com/equipo22/agenda/AdsFragment.kt
@@ -0,0 +1,74 @@
+package com.equipo22.agenda
+
+import android.graphics.drawable.AnimationDrawable
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.LinearLayout
+import android.widget.Toast
+import androidx.core.content.res.ResourcesCompat
+import androidx.core.view.isVisible
+import androidx.fragment.app.Fragment
+import com.google.android.material.button.MaterialButton
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+
+
+class AdsFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        val view = inflater.inflate(R.layout.fragment_ads, container, false)
+
+        val btnPaid = view.findViewById<MaterialButton>(R.id.btnPaid)
+        val LinearAds = view.findViewById<LinearLayout>(R.id.LinearAds)
+
+
+        loop()
+
+
+        btnPaid.setOnClickListener {
+
+            MaterialAlertDialogBuilder(requireActivity())
+                .setTitle(resources.getString(R.string.compra_dialog_title))
+                .setMessage(
+                    resources.getString(
+                        R.string.compra_dialog
+                    )
+                )
+                .setPositiveButton(resources.getString(R.string.accept)) { dialog, which ->
+                    Toast.makeText(requireActivity(),getString(R.string.paidOut), Toast.LENGTH_SHORT).show()
+                    LinearAds.visibility=View.GONE
+                }
+                .setNegativeButton(resources.getString(R.string.btnCancel)) { dialog, which ->
+                }
+                .show()
+
+        }
+        return view
+    }
+
+    fun loop(){
+        Handler(Looper.getMainLooper()).postDelayed({
+            anuncios((0..2).random())
+            loop()
+        }, 3000)
+    }
+    fun anuncios(n:Int){
+        val imageAds = view?.findViewById<ImageView>(R.id.imageAds)
+        when(n){
+            0->imageAds?.setImageResource(R.drawable.ads_becas)
+            1 ->imageAds?.setImageResource(R.drawable.ads_mexico)
+            2 -> imageAds?.setImageResource(R.drawable.ads_sale)
+            else ->imageAds?.setImageResource(R.drawable.ads_becas)
+        }
+    }
+
+
+}
\ No newline at end of file
diff --git a/app/src/free/res/layout/fragment_ads.xml b/app/src/free/res/layout/fragment_ads.xml
new file mode 100644
index 0000000..ca8cf1f
--- /dev/null
+++ b/app/src/free/res/layout/fragment_ads.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="fill_parent"
+    android:orientation="horizontal"
+    android:layout_height="100dp"
+    tools:context=".AdsFragment"
+    android:background="@color/white"
+    android:id="@+id/LinearAds">
+
+    <ImageView
+        android:id="@+id/imageAds"
+        android:layout_width="271dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:src="@drawable/ads_becas" />
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/btnPaid"
+        style="@style/ChronoMasterTheme.Button"
+        android:layout_gravity="center"
+        android:layout_weight="1"
+        android:text="@string/adsButton" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/free/res/values/strings.xml b/app/src/free/res/values/strings.xml
new file mode 100644
index 0000000..8254f57
--- /dev/null
+++ b/app/src/free/res/values/strings.xml
@@ -0,0 +1,6 @@
+<resources>
+    <string name="adsButton">Quitar anuncios</string>
+    <string name="compra_dialog_title">Eliminar anuncios</string>
+    <string name="compra_dialog">¿Está seguro que desea comprar la version premium por $10?</string>
+    <string name="paidOut">Gracias por su compra</string>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index ed3f173..07e791c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -7,7 +7,7 @@
         android:allowBackup="true"
         android:fullBackupContent="true"
         android:icon="@mipmap/ic_launcher"
-        android:label="@string/appName"
+        android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/ChronoMasterTheme">
diff --git a/app/src/main/res/drawable/ads_becas.jpg b/app/src/main/res/drawable/ads_becas.jpg
new file mode 100644
index 0000000..0c1380b
Binary files /dev/null and b/app/src/main/res/drawable/ads_becas.jpg differ
diff --git a/app/src/main/res/drawable/ads_mexico.jpg b/app/src/main/res/drawable/ads_mexico.jpg
new file mode 100644
index 0000000..8310382
Binary files /dev/null and b/app/src/main/res/drawable/ads_mexico.jpg differ
diff --git a/app/src/main/res/drawable/ads_sale.jpg b/app/src/main/res/drawable/ads_sale.jpg
new file mode 100644
index 0000000..8747a6f
Binary files /dev/null and b/app/src/main/res/drawable/ads_sale.jpg differ
diff --git a/app/src/main/res/layout/activity_tarea_management.xml b/app/src/main/res/layout/activity_tarea_management.xml
index eb24511..4c07c86 100644
--- a/app/src/main/res/layout/activity_tarea_management.xml
+++ b/app/src/main/res/layout/activity_tarea_management.xml
@@ -1,6 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
-    android:id="@+id/fragment_container"
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android" />
+    xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <FrameLayout
+        android:id="@+id/fragment_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:layout_editor_absoluteX="0dp" />
+
+    <fragment
+        android:id="@+id/fragmentAds"
+        class="com.equipo22.agenda.AdsFragment"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/fragment_ads.xml b/app/src/main/res/layout/fragment_ads.xml
new file mode 100644
index 0000000..541368d
--- /dev/null
+++ b/app/src/main/res/layout/fragment_ads.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="fill_parent"
+    android:orientation="horizontal"
+    android:layout_height="wrap_content"
+    tools:context=".tareas.TareaManagementActivity">
+
+</LinearLayout>
+
diff --git a/app/src/main/res/layout/fragment_agregar_tarea.xml b/app/src/main/res/layout/fragment_agregar_tarea.xml
index a47e71b..c8e1b56 100644
--- a/app/src/main/res/layout/fragment_agregar_tarea.xml
+++ b/app/src/main/res/layout/fragment_agregar_tarea.xml
@@ -197,6 +197,7 @@
             android:id="@+id/btnCancel"
             style="@style/ChronoMasterTheme.Button"
             android:text="@string/btnCancel"
-            app:cornerRadius="20dp" />
+            app:cornerRadius="20dp"
+            android:layout_marginBottom="100dp"/>
     </LinearLayout>
 </androidx.core.widget.NestedScrollView>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_editar_tarea.xml b/app/src/main/res/layout/fragment_editar_tarea.xml
index a47e71b..d8f551c 100644
--- a/app/src/main/res/layout/fragment_editar_tarea.xml
+++ b/app/src/main/res/layout/fragment_editar_tarea.xml
@@ -197,6 +197,8 @@
             android:id="@+id/btnCancel"
             style="@style/ChronoMasterTheme.Button"
             android:text="@string/btnCancel"
-            app:cornerRadius="20dp" />
+            app:cornerRadius="20dp"
+            android:layout_marginBottom="100dp"
+            />
     </LinearLayout>
 </androidx.core.widget.NestedScrollView>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_ver_listado.xml b/app/src/main/res/layout/fragment_ver_listado.xml
index 5a4a5cd..d9c1a5d 100644
--- a/app/src/main/res/layout/fragment_ver_listado.xml
+++ b/app/src/main/res/layout/fragment_ver_listado.xml
@@ -50,7 +50,8 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/nameUser"
-            app:layout_constraintVertical_bias="0.344">
+            app:layout_constraintVertical_bias="0.344"
+            android:layout_marginBottom="100dp">
 
             <androidx.recyclerview.widget.RecyclerView
                 android:id="@+id/recyclerTareas"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 56b8d71..1d05817 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,5 +1,4 @@
 <resources>
-    <string name="appName">Chrono Master</string>
     <string name="activityMainLogIn">Log In</string>
     <string name="activitySignUpTitle">Sign Up</string>
     <string name="usrPlaceholder">Usuario</string>
diff --git a/app/src/paid/java/com/equipo22/agenda/AdsFragment.kt b/app/src/paid/java/com/equipo22/agenda/AdsFragment.kt
new file mode 100644
index 0000000..098e22d
--- /dev/null
+++ b/app/src/paid/java/com/equipo22/agenda/AdsFragment.kt
@@ -0,0 +1,26 @@
+package com.equipo22.agenda
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.LinearLayout
+import android.widget.Toast
+import androidx.fragment.app.Fragment
+import com.google.android.material.button.MaterialButton
+
+
+
+class AdsFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_ads, container, false)
+
+    }
+}
\ No newline at end of file
diff --git a/app/src/paid/res/layout/fragment_ads.xml b/app/src/paid/res/layout/fragment_ads.xml
new file mode 100644
index 0000000..dd7097d
--- /dev/null
+++ b/app/src/paid/res/layout/fragment_ads.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="fill_parent"
+    android:orientation="horizontal"
+    android:layout_height="100dp"
+    tools:context=".tareas.TareaManagementActivity">
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/paid/res/values/strings.xml b/app/src/paid/res/values/strings.xml
new file mode 100644
index 0000000..954afba
--- /dev/null
+++ b/app/src/paid/res/values/strings.xml
@@ -0,0 +1,4 @@
+<resources>
+    <string name="adsButton">Quitar anuncios</string>
+    <string name="paidOut">Gracias por su compra</string>
+</resources>
\ No newline at end of file