diff --git a/app/controllers/advertisements_controller.rb b/app/controllers/advertisements_controller.rb
new file mode 100644
index 0000000..850e230
--- /dev/null
+++ b/app/controllers/advertisements_controller.rb
@@ -0,0 +1,42 @@
+class AdvertisementsController < ApplicationController
+  before_action :authenticate_user!, only: %i[index new create show]
+  before_action :redirect_unauthorized_user, only: %i[index new create show]
+
+  def index
+    @advertisements = Advertisement.all
+  end
+
+  def new
+    @advertisement = Advertisement.new
+  end
+
+  def create
+    @advertisement = current_user.advertisements.build(ads_params)
+
+    redirect_to advertisement_path(@advertisement), notice: t('.success') if @advertisement.save
+  end
+
+  def show
+    @advertisement = Advertisement.find(params[:id])
+  end
+
+  def update
+    @advertisement = Advertisement.find(params[:id])
+    @advertisement.update(view_count: @advertisement.view_count + 1)
+
+    url = @advertisement.link
+    url = "http://#{url}" unless url.start_with?('http://', 'https://')
+
+    redirect_to url, allow_other_host: true
+  end
+
+  private
+
+  def ads_params
+    params.require(:advertisement).permit(:title, :link, :display_time, :image)
+  end
+
+  def redirect_unauthorized_user
+    redirect_to root_path unless current_user.admin?
+  end
+end
diff --git a/app/controllers/home_controller.rb b/app/controllers/home_controller.rb
index b5a0ba6..1583a1d 100644
--- a/app/controllers/home_controller.rb
+++ b/app/controllers/home_controller.rb
@@ -8,6 +8,6 @@ def index
 
     return if @followed_posts.any?
 
-    @posts = Post.get_sample(3)
+    @posts = Post.get_sample(10)
   end
 end
diff --git a/app/models/advertisement.rb b/app/models/advertisement.rb
new file mode 100644
index 0000000..ad58182
--- /dev/null
+++ b/app/models/advertisement.rb
@@ -0,0 +1,14 @@
+class Advertisement < ApplicationRecord
+  belongs_to :user
+  has_one_attached :image
+  validates :title, :link, presence: true
+  validates :link, format: URI::DEFAULT_PARSER.make_regexp(%w[http https])
+
+  def self.displayed
+    where.not(id: Advertisement.select(&:expired?)).sample(1)
+  end
+
+  def expired?
+    (created_at + display_time.days) < Time.zone.now
+  end
+end
diff --git a/app/models/user.rb b/app/models/user.rb
index b3e2455..05f5aa6 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -15,6 +15,7 @@ class User < ApplicationRecord
   has_many :professional_infos, through: :profile
   has_many :education_infos, through: :profile
   has_many :invitation_requests, through: :profile
+  has_many :advertisements, dependent: :destroy
   has_one :subscription, dependent: :destroy
 
   enum role: { user: 0, admin: 10 }
diff --git a/app/views/advertisements/_advertisement.html.erb b/app/views/advertisements/_advertisement.html.erb
new file mode 100644
index 0000000..0b57c24
--- /dev/null
+++ b/app/views/advertisements/_advertisement.html.erb
@@ -0,0 +1,7 @@
+<div id="advertisement_<%= advertisement.id %>" class="text-center mb-3">
+  <%= button_to advertisement_path(advertisement), method: :patch,
+                class: 'advertisement rounded btn btn-light w-100', data: { turbo: false }, id: 'to-ad' do %>
+    <p><%= advertisement.title %></p>
+    <p><%= image_tag advertisement.image, width: '400rem', alt: 'advertisement' if advertisement.image.present? %></p>
+  <% end %>
+</div>
diff --git a/app/views/advertisements/index.html.erb b/app/views/advertisements/index.html.erb
new file mode 100644
index 0000000..9678849
--- /dev/null
+++ b/app/views/advertisements/index.html.erb
@@ -0,0 +1,11 @@
+<%= link_to t('new_ad_btn'), new_advertisement_path, class: 'btn btn-primary mt-3' %>
+
+<% @advertisements.each do |ad| %>
+
+<ul class="list-group mt-3">
+  <li class="list-group-item my-2">
+    <%= link_to ad.title, advertisement_path(ad) %>
+  </li>
+</ul>
+
+<% end %>
\ No newline at end of file
diff --git a/app/views/advertisements/new.html.erb b/app/views/advertisements/new.html.erb
new file mode 100644
index 0000000..3557654
--- /dev/null
+++ b/app/views/advertisements/new.html.erb
@@ -0,0 +1,23 @@
+<%= form_with model: @advertisement, class: 'mt-3' do |f| %>
+  <div class="form-group">
+    <%= f.label :title, class: 'form-label' %>
+    <%= f.text_field :title, class: 'form-control' %>
+  </div>
+
+  <div class="form-group">
+    <%= f.label :link, class: 'form-label' %>
+    <%= f.text_field :link, class: 'form-control' %>
+  </div>
+
+  <div class="form-group">
+    <%= f.label :display_time, class: 'form-label' %>
+    <%= f.number_field :display_time, class: 'form-control', min: 1 %>
+  </div>
+
+  <div class="form-group">
+    <%= f.label :image, class: 'form-label' %>
+    <%= f.file_field :image, class: 'form-control' %>
+  </div>
+
+  <%= f.submit t('save_btn'), class: 'btn btn-primary mt-3' %>
+<% end %>
\ No newline at end of file
diff --git a/app/views/advertisements/show.html.erb b/app/views/advertisements/show.html.erb
new file mode 100644
index 0000000..05fea3e
--- /dev/null
+++ b/app/views/advertisements/show.html.erb
@@ -0,0 +1,14 @@
+<%= link_to t('return_btn'), advertisements_path, class: 'btn btn-secondary mb-3' %> <br>
+
+<div class="container">
+  <h4><%= @advertisement.title %></h4>
+  
+  <%= image_tag @advertisement.image, width: 400, class: 'mb-3' if @advertisement.image.present? %>
+
+  <p><strong>Tempo de exibição (em dias):</strong> <%= @advertisement.display_time %></p>
+
+  <p><strong>Link:</strong> <%= @advertisement.link %></p>
+
+  <p><strong>Cliques:</strong>  <%= @advertisement.view_count %></p>
+</div>
+
diff --git a/app/views/posts/_listing.html.erb b/app/views/posts/_listing.html.erb
index 5a85c5a..480d261 100644
--- a/app/views/posts/_listing.html.erb
+++ b/app/views/posts/_listing.html.erb
@@ -1,4 +1,4 @@
-<% posts.each do |post| %>
+<% posts.each_with_index do |post, index| %>
   <div class="feed-post mb-3 p-3 rounded row bg-white border" id="post-list">
     <%= link_to post, class: "text-decoration-none link-dark col-md-10" do %>
       <div class="card-body">
@@ -37,4 +37,7 @@
       </div>
     <% end %>
   </div>
+  <% if current_user.subscription.inactive? && (index+1) % 5 == 0 && Advertisement.any? %>
+    <%= render partial: 'advertisements/advertisement', locals: { advertisement: Advertisement.displayed.first } %>
+  <% end %>
 <% end %>
diff --git a/app/views/shared/_navbar.html.erb b/app/views/shared/_navbar.html.erb
index 156a684..46462fe 100644
--- a/app/views/shared/_navbar.html.erb
+++ b/app/views/shared/_navbar.html.erb
@@ -69,6 +69,11 @@
             <li class="dropdown-item" href="#">
               <%= link_to t('settings.index.settings'), profile_settings_path(current_user.profile), class: 'nav-link' %>
             </li>
+            <% if current_user.admin? %>
+              <li class="dropdown-item">
+                <%= link_to t('ads_btn'), advertisements_path, class: 'nav-link' %>
+              </li>
+            <% end %>
             <div class="dropdown-divider"></div>
             <li class="dropdown-item" href="#">
               <%= link_to Subscription.model_name.human, subscriptions_path, class: 'nav-link text-primary' %>
diff --git a/config/locales/buttons.pt-BR.yml b/config/locales/buttons.pt-BR.yml
index b8949ae..9b88ca5 100644
--- a/config/locales/buttons.pt-BR.yml
+++ b/config/locales/buttons.pt-BR.yml
@@ -10,4 +10,6 @@ pt-BR:
   unpin_btn: Desafixar
   return_btn: Voltar
   send_btn: Enviar
-  publish_btn: Publicar
\ No newline at end of file
+  publish_btn: Publicar
+  ads_btn: Anúncios
+  new_ad_btn: Criar Anúncio
\ No newline at end of file
diff --git a/config/locales/models/advertisement.pt-BR.yml b/config/locales/models/advertisement.pt-BR.yml
new file mode 100644
index 0000000..8f902e2
--- /dev/null
+++ b/config/locales/models/advertisement.pt-BR.yml
@@ -0,0 +1,16 @@
+pt-BR:
+  activerecord:
+    models:
+      advertisement:
+        one: Anúncio
+        other: Anúncios
+    attributes:
+      advertisement:
+        title: Título
+        link: Link
+        image: Imagem
+        view_count: Visualizações
+        display_time: Prazo (em dias)
+  advertisements:
+    create:
+      success: Anúncio criado com sucesso
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index e779c33..e02d076 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -3,6 +3,8 @@
 
   root to: 'home#index'
 
+  resources :advertisements, only: %i[index show new create update]
+
   resources :searches, only: %i[index]
   resources :invitations, only: %i[index show] do
     patch 'decline', on: :member
diff --git a/db/migrate/20240215195415_create_advertisements.rb b/db/migrate/20240215195415_create_advertisements.rb
new file mode 100644
index 0000000..b40a45e
--- /dev/null
+++ b/db/migrate/20240215195415_create_advertisements.rb
@@ -0,0 +1,13 @@
+class CreateAdvertisements < ActiveRecord::Migration[7.1]
+  def change
+    create_table :advertisements do |t|
+      t.string :link, null: false
+      t.integer :display_time, default: 0
+      t.integer :view_count, default: 0
+      t.string :title, null: false
+      t.references :user, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 4463e2e..6aedd6d 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_02_15_181135) do
+ActiveRecord::Schema[7.1].define(version: 2024_02_15_195415) do
   create_table "action_text_rich_texts", force: :cascade do |t|
     t.string "name", null: false
     t.text "body"
@@ -49,6 +49,17 @@
     t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
   end
 
+  create_table "advertisements", force: :cascade do |t|
+    t.string "link", null: false
+    t.integer "display_time", default: 0
+    t.integer "view_count", default: 0
+    t.string "title", null: false
+    t.integer "user_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["user_id"], name: "index_advertisements_on_user_id"
+  end
+
   create_table "billings", force: :cascade do |t|
     t.integer "subscription_id", null: false
     t.date "billing_date", null: false
@@ -411,6 +422,7 @@
 
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
+  add_foreign_key "advertisements", "users"
   add_foreign_key "billings", "subscriptions"
   add_foreign_key "comments", "posts"
   add_foreign_key "comments", "users"
diff --git a/spec/factories/advertisements.rb b/spec/factories/advertisements.rb
new file mode 100644
index 0000000..243feb3
--- /dev/null
+++ b/spec/factories/advertisements.rb
@@ -0,0 +1,9 @@
+FactoryBot.define do
+  factory :advertisement do
+    image { nil }
+    link { 'https://www.campuscode.com' }
+    display_time { 7 }
+    title { Faker::Lorem.paragraph }
+    user
+  end
+end
diff --git a/spec/models/advertisement_spec.rb b/spec/models/advertisement_spec.rb
new file mode 100644
index 0000000..504402e
--- /dev/null
+++ b/spec/models/advertisement_spec.rb
@@ -0,0 +1,49 @@
+require 'rails_helper'
+
+RSpec.describe Advertisement, type: :model do
+  describe '#valid?' do
+    it 'Deve ter título' do
+      advertisement = Advertisement.new
+      advertisement.valid?
+      expect(advertisement.errors[:title]).to include('não pode ficar em branco')
+    end
+
+    context 'Formato do link' do
+      it 'Deve ter link' do
+        advertisement = Advertisement.new
+        advertisement.valid?
+        expect(advertisement.errors[:link]).to include('não pode ficar em branco')
+      end
+
+      it 'deve ser válido com formato correto' do
+        user = create(:user)
+        ad = Advertisement.new(title: 'Venha ser Dev', user:, link: 'https://www.campuscode.com')
+        expect(ad).to be_valid
+      end
+
+      it 'deve ser inválido com formato incorreto' do
+        user = create(:user)
+        ad = Advertisement.new(title: 'Venha ser Dev', user:, link: 'campus##code.com')
+        expect(ad).not_to be_valid
+      end
+    end
+  end
+
+  describe '#displayed' do
+    it 'deve retornar apenas anúncios não expirados' do
+      create(:advertisement, created_at: 6.days.ago, display_time: 7)
+
+      ads = Advertisement.displayed
+
+      expect(ads.size).to eq 1
+    end
+
+    it 'não deve retornar anúncios expirados' do
+      create(:advertisement, created_at: 2.days.ago, display_time: 1)
+
+      ads = Advertisement.displayed
+
+      expect(ads.size).to eq 0
+    end
+  end
+end
diff --git a/spec/requests/advertisements/user_visits_advertisements_page_spec.rb b/spec/requests/advertisements/user_visits_advertisements_page_spec.rb
new file mode 100644
index 0000000..afdb424
--- /dev/null
+++ b/spec/requests/advertisements/user_visits_advertisements_page_spec.rb
@@ -0,0 +1,18 @@
+require 'rails_helper'
+
+describe 'Usuário visita listagem de anúncios' do
+  it 'e não é admin' do
+    user = create(:user)
+
+    login_as user
+    get advertisements_path
+
+    expect(response).to redirect_to root_path
+  end
+
+  it 'e não está autenticado' do
+    get advertisements_path
+
+    expect(response).to redirect_to new_user_session_path
+  end
+end
diff --git a/spec/system/advertisements/admin_create_ad_spec.rb b/spec/system/advertisements/admin_create_ad_spec.rb
new file mode 100644
index 0000000..11c7b2f
--- /dev/null
+++ b/spec/system/advertisements/admin_create_ad_spec.rb
@@ -0,0 +1,39 @@
+require 'rails_helper'
+
+describe 'Administrador cadastra um anúncio' do
+  it 'com sucesso' do
+    admin = create(:user, role: 'admin')
+
+    login_as admin
+    visit root_path
+    click_button class: 'dropdown-toggle'
+    within 'nav' do
+      click_on 'Anúncios'
+    end
+    click_on 'Criar Anúncio'
+    fill_in 'Título', with: 'Buscador'
+    fill_in 'Link', with: 'https://www.google.com'
+    fill_in 'Prazo (em dias)', with: 7
+    attach_file('Imagem', Rails.root.join('spec/support/assets/images/test_image.png'))
+    click_on 'Salvar'
+
+    ad = Advertisement.last
+    expect(page).to have_content 'Anúncio criado com sucesso'
+    expect(page).to have_current_path advertisement_path(ad)
+    expect(page).to have_content 'Buscador'
+    expect(page).to have_css('img[src*="test_image.png"]')
+    expect(page).to have_link 'Voltar', href: advertisements_path
+  end
+
+  it 'e não é admin' do
+    user = create(:user)
+
+    login_as user
+    visit root_path
+    click_button class: 'dropdown-toggle'
+
+    within 'nav' do
+      expect(page).not_to have_link 'Anúncios'
+    end
+  end
+end
diff --git a/spec/system/advertisements/user_sees_ads_spec.rb b/spec/system/advertisements/user_sees_ads_spec.rb
new file mode 100644
index 0000000..fe55eec
--- /dev/null
+++ b/spec/system/advertisements/user_sees_ads_spec.rb
@@ -0,0 +1,74 @@
+require 'rails_helper'
+
+describe 'Usuário visualiza anúncios na home page' do
+  context 'com assinatura free' do
+    it 'a cada 5 posts' do
+      user = create(:user, :free)
+      admin = create(:user, role: 'admin')
+      ad1 = create(:advertisement, user: admin, title: 'Cursos de Software', link: 'https://campuscode.com.br')
+      ad2 = create(:advertisement, user: admin, title: 'Venha ser Dev', link: 'https://dev.com.br')
+
+      10.times { create(:post) }
+      allow(Post).to receive(:get_sample).and_return(Post.all)
+      allow(Advertisement).to receive(:displayed).and_return([ad1], [ad2])
+
+      login_as user
+      visit root_path
+
+      within "#advertisement_#{ad1.id}" do
+        expect(page).to have_button 'Cursos de Software'
+      end
+      within "#advertisement_#{ad2.id}" do
+        expect(page).to have_button 'Venha ser Dev'
+      end
+
+      expect(page).to have_selector '.advertisement', count: 2
+      expect(page.body.index(Post.find(5).title)).to be < page.body.index('Cursos de Software')
+      expect(page.body.index(Post.find(6).title)).to be > page.body.index('Cursos de Software')
+      expect(page.body.index(Post.find(10).title)).to be < page.body.index('Venha ser Dev')
+    end
+
+    it 'e clica em um anúncio' do
+      user = create(:user, :free)
+      admin = create(:user, role: 'admin')
+      ad = create(:advertisement, user: admin, title: 'Cursos de Software', link: 'https://www.campuscode.com.br',
+                                  view_count: 0)
+      ad.image.attach(io: File.open('spec/support/assets/images/test_image.png'),
+                      filename: 'test_image.png', content_type: 'image/png')
+      ad.save
+
+      5.times { create(:post) }
+      allow(Post).to receive(:get_sample).and_return(Post.all)
+      login_as user
+      visit root_path
+
+      within "#advertisement_#{ad.id}" do
+        click_button id: 'to-ad'
+      end
+
+      expect(ad.reload.view_count).to eq 1
+      expect(page).to have_current_path ad.link
+    end
+  end
+
+  context 'com assinatura premium' do
+    it 'não visualiza anúncios' do
+      user = create(:user, :paid)
+      admin = create(:user, role: 'admin')
+      ad = create(:advertisement, user: admin, title: 'Cursos de Software', link: 'https://www.campuscode.com.br',
+                                  view_count: 0)
+      ad.image.attach(io: File.open('spec/support/assets/images/test_image.png'),
+                      filename: 'test_image.png', content_type: 'image/png')
+      ad.save
+
+      5.times { create(:post) }
+      allow(Post).to receive(:get_sample).and_return(Post.all)
+      login_as user
+      visit root_path
+
+      expect(page).not_to have_css "#advertisement_#{ad.id}"
+      expect(page).not_to have_content 'Cursos de Software'
+      expect(page).not_to have_link 'https://www.campuscode.com.br'
+    end
+  end
+end