diff --git a/app/models/service.rb b/app/models/service.rb
deleted file mode 100644
index 7cdf4524..00000000
--- a/app/models/service.rb
+++ /dev/null
@@ -1,41 +0,0 @@
-class Service < ApplicationRecord
-  attr_accessor :provider, :info
-
-  belongs_to :user
-  validates_uniqueness_of :uid, scope: :type
-  validates_length_of :post_tag, maximum: 20
-
-  class << self
-
-    def first_from_omniauth(auth_hash)
-      @@auth = auth_hash
-      where(type: service_type, uid: options[:uid]).first
-    end
-
-    def initialize_from_omniauth(auth_hash)
-      @@auth = auth_hash
-      service_type.constantize.new(options)
-    end
-
-    private
-
-      def auth
-        @@auth
-      end
-
-      def service_type
-        "Services::#{options[:provider].camelize}"
-      end
-
-      def options
-        {
-          nickname:      auth['info']['nickname'],
-          access_token:  auth['credentials']['token'],
-          access_secret: auth['credentials']['secret'],
-          uid:           auth['uid'],
-          provider:      auth['provider'],
-          info:          auth['info']
-        }
-      end
-  end
-end
diff --git a/app/models/services/twitter.rb b/app/models/services/twitter.rb
deleted file mode 100644
index 388c316d..00000000
--- a/app/models/services/twitter.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-class Services::Twitter < Service
-  include Rails.application.routes.url_helpers
-  include SocialHelper::TwitterMethods
-
-  def provider
-    "twitter"
-  end
-
-  def post(answer)
-    Rails.logger.debug "posting to Twitter {'answer' => #{answer.id}, 'user' => #{self.user_id}}"
-    post_tweet answer
-  end
-
-  private
-
-    def client
-      @client ||= Twitter::REST::Client.new(
-        consumer_key: APP_CONFIG['sharing']['twitter']['consumer_key'],
-        consumer_secret: APP_CONFIG['sharing']['twitter']['consumer_secret'],
-        access_token: self.access_token,
-        access_token_secret: self.access_secret
-      )
-    end
-
-    def post_tweet(answer)
-      client.update! prepare_tweet(answer, self.post_tag)
-    end
-end
diff --git a/app/models/user.rb b/app/models/user.rb
index fb32d232..df628cc5 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -33,7 +33,6 @@ class User < ApplicationRecord # rubocop:disable Metrics/ClassLength
   has_many :comments, dependent: :destroy_async
   has_many :inboxes, dependent: :destroy_async
   has_many :smiles, class_name: "Appendable::Reaction", dependent: :destroy_async
-  has_many :services, dependent: :destroy_async
   has_many :notifications, foreign_key: :recipient_id, dependent: :destroy_async
   has_many :reports, dependent: :destroy_async
   has_many :lists, dependent: :destroy_async
diff --git a/config/locales/activerecord.en.yml b/config/locales/activerecord.en.yml
index 2b1b178e..3a0a0742 100644
--- a/config/locales/activerecord.en.yml
+++ b/config/locales/activerecord.en.yml
@@ -30,8 +30,6 @@ en:
         location: "Location"
         motivation_header: "Motivation header"
         website: "Website"
-      service:
-        post_tag: "Tag"
       theme:
         background_color: "Background colour"
         body_text: "Body text colour"
@@ -90,8 +88,6 @@ en:
       profile:
         anon_display_name: "This name will be used for questions asked to you by anonymous users."
         motivation_header: "Shown in the header of the question box on your profile. Motivate users to ask you questions!"
-      services/twitter:
-        post_tag: "Automatically append a tag to your shared answers. A # symbol is not automatically prepended."
       theme:
         danger_color: "Colour used for errors or critical actions like deleting something."
         info_color: "Colour used for informational popups or messages."