diff --git a/Pipfile b/Pipfile
index 6afaee4..c65be00 100644
--- a/Pipfile
+++ b/Pipfile
@@ -5,14 +5,14 @@ name = "pypi"
 
 [packages]
 requests = "*"
-pytest = "*"
-pytest-mock = "*"
 click = "*"
 schedule = "*"
 notify-py = "*"
 
 [dev-packages]
 flake8 = "*"
+pytest = "*"
+pytest-mock = "*"
 
 [requires]
 python_version = "3.10"
diff --git a/Pipfile.lock b/Pipfile.lock
index e7d9ae3..d0e98bc 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "66a034435a9b16d1e951839e1e65bc6fc38e9eec5bd49a2ef99bf49e706465d9"
+            "sha256": "b1f7443b0ef383b55df1e84167df1ab9b100229a9bc577446cfb968d3f85f5d7"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -16,14 +16,6 @@
         ]
     },
     "default": {
-        "attrs": {
-            "hashes": [
-                "sha256:29adc2665447e5191d0e7c568fde78b21f9672d344281d0c6e1ab085429b22b6",
-                "sha256:86efa402f67bf2df34f51a335487cf46b1ec130d02b8d39fd248abfd30da551c"
-            ],
-            "markers": "python_version >= '3.5'",
-            "version": "==22.1.0"
-        },
         "certifi": {
             "hashes": [
                 "sha256:0d9c601124e5a6ba9712dbc60d9c53c21e34f5f641fe83002317394311bdce14",
@@ -56,13 +48,6 @@
             "markers": "python_version >= '3.5'",
             "version": "==3.4"
         },
-        "iniconfig": {
-            "hashes": [
-                "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
-                "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"
-            ],
-            "version": "==1.1.1"
-        },
         "jeepney": {
             "hashes": [
                 "sha256:5efe48d255973902f6badc3ce55e2aa6c5c3b3bc642059ef3a91247bcfcc5806",
@@ -87,54 +72,6 @@
             "index": "pypi",
             "version": "==0.3.3"
         },
-        "packaging": {
-            "hashes": [
-                "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb",
-                "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"
-            ],
-            "markers": "python_version >= '3.6'",
-            "version": "==21.3"
-        },
-        "pluggy": {
-            "hashes": [
-                "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159",
-                "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"
-            ],
-            "markers": "python_version >= '3.6'",
-            "version": "==1.0.0"
-        },
-        "py": {
-            "hashes": [
-                "sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719",
-                "sha256:607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378"
-            ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==1.11.0"
-        },
-        "pyparsing": {
-            "hashes": [
-                "sha256:2b020ecf7d21b687f219b71ecad3631f644a47f01403fa1d1036b0c6416d70fb",
-                "sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc"
-            ],
-            "markers": "python_full_version >= '3.6.8'",
-            "version": "==3.0.9"
-        },
-        "pytest": {
-            "hashes": [
-                "sha256:1377bda3466d70b55e3f5cecfa55bb7cfcf219c7964629b967c37cf0bda818b7",
-                "sha256:4f365fec2dff9c1162f834d9f18af1ba13062db0c708bf7b946f8a5c76180c39"
-            ],
-            "index": "pypi",
-            "version": "==7.1.3"
-        },
-        "pytest-mock": {
-            "hashes": [
-                "sha256:77f03f4554392558700295e05aed0b1096a20d4a60a4f3ddcde58b0c31c8fca2",
-                "sha256:8a9e226d6c0ef09fcf20c94eb3405c388af438a90f3e39687f84166da82d5948"
-            ],
-            "index": "pypi",
-            "version": "==3.8.2"
-        },
         "requests": {
             "hashes": [
                 "sha256:7c5599b102feddaa661c826c56ab4fee28bfd17f5abca1ebbe3e7f19d7c97983",
@@ -151,14 +88,6 @@
             "index": "pypi",
             "version": "==1.1.0"
         },
-        "tomli": {
-            "hashes": [
-                "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc",
-                "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==2.0.1"
-        },
         "urllib3": {
             "hashes": [
                 "sha256:3fa96cf423e6987997fc326ae8df396db2a8b7c667747d47ddd8ecba91f4a74e",
@@ -169,6 +98,14 @@
         }
     },
     "develop": {
+        "attrs": {
+            "hashes": [
+                "sha256:29adc2665447e5191d0e7c568fde78b21f9672d344281d0c6e1ab085429b22b6",
+                "sha256:86efa402f67bf2df34f51a335487cf46b1ec130d02b8d39fd248abfd30da551c"
+            ],
+            "markers": "python_version >= '3.5'",
+            "version": "==22.1.0"
+        },
         "flake8": {
             "hashes": [
                 "sha256:6fbe320aad8d6b95cec8b8e47bc933004678dc63095be98528b7bdd2a9f510db",
@@ -177,6 +114,13 @@
             "index": "pypi",
             "version": "==5.0.4"
         },
+        "iniconfig": {
+            "hashes": [
+                "sha256:011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3",
+                "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"
+            ],
+            "version": "==1.1.1"
+        },
         "mccabe": {
             "hashes": [
                 "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325",
@@ -185,6 +129,30 @@
             "markers": "python_version >= '3.6'",
             "version": "==0.7.0"
         },
+        "packaging": {
+            "hashes": [
+                "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb",
+                "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==21.3"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159",
+                "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==1.0.0"
+        },
+        "py": {
+            "hashes": [
+                "sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719",
+                "sha256:607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378"
+            ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
+            "version": "==1.11.0"
+        },
         "pycodestyle": {
             "hashes": [
                 "sha256:2c9607871d58c76354b697b42f5d57e1ada7d261c261efac224b664affdc5785",
@@ -200,6 +168,38 @@
             ],
             "markers": "python_version >= '3.6'",
             "version": "==2.5.0"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:2b020ecf7d21b687f219b71ecad3631f644a47f01403fa1d1036b0c6416d70fb",
+                "sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc"
+            ],
+            "markers": "python_full_version >= '3.6.8'",
+            "version": "==3.0.9"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:1377bda3466d70b55e3f5cecfa55bb7cfcf219c7964629b967c37cf0bda818b7",
+                "sha256:4f365fec2dff9c1162f834d9f18af1ba13062db0c708bf7b946f8a5c76180c39"
+            ],
+            "index": "pypi",
+            "version": "==7.1.3"
+        },
+        "pytest-mock": {
+            "hashes": [
+                "sha256:77f03f4554392558700295e05aed0b1096a20d4a60a4f3ddcde58b0c31c8fca2",
+                "sha256:8a9e226d6c0ef09fcf20c94eb3405c388af438a90f3e39687f84166da82d5948"
+            ],
+            "index": "pypi",
+            "version": "==3.8.2"
+        },
+        "tomli": {
+            "hashes": [
+                "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc",
+                "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.1"
         }
     }
 }
diff --git a/assests/leetcoin.png b/assets/leetcoin.png
similarity index 100%
rename from assests/leetcoin.png
rename to assets/leetcoin.png
diff --git a/leeteasy/__main__.py b/leeteasy/__main__.py
index 592478a..ad8f774 100644
--- a/leeteasy/__main__.py
+++ b/leeteasy/__main__.py
@@ -11,10 +11,21 @@
 
 
 @click.command()
+@click.option(
+    '-d',
+    '--difficulty',
+    type=click.Choice(['Medium', 'Hard'], case_sensitive=False),
+    help='Additional problem difficulty for notification.'
+)
 @click.argument('time')
-def main(time) -> None:
-    """Schedule notification at TIME."""
+def main(time, difficulty) -> None:
+    """
+    Schedule notification at given TIME [24hrs].
+
+    Example: leeteasy 13:15
+    """
     TimeValidator.validate(time)
+    Notifier.target_difficulty.append(difficulty)
     schedule.every().day.at(time).do(Notifier.notify)
 
     while True:
diff --git a/leeteasy/services/notification_service.py b/leeteasy/services/notification_service.py
index 7654c1d..e284076 100644
--- a/leeteasy/services/notification_service.py
+++ b/leeteasy/services/notification_service.py
@@ -8,23 +8,25 @@ class Notifier:
     """Handles notification related functionalities."""
 
     target_difficulty = ['Easy']
-    app_name = 'LeetEasy - Easy Problem Alert \U0001F514'
+    app_name = 'LeetEasy'
+    challenge = None
 
     @classmethod
     def prepare_notification(cls):
         """Prepares notification msg and triggers notification."""
         challenge_info = RequestHandler.get_challenge_info()
-        challenge = RequestParser.parse(challenge_info)
-        if challenge.difficulty in cls.target_difficulty:
+        cls.challenge = RequestParser.parse(challenge_info)
+        if cls.challenge.difficulty in cls.target_difficulty:
             return '{0}\nLink: {1}'.format(
-                challenge.title,
-                challenge.problem_link,
+                cls.challenge.title,
+                cls.challenge.problem_link,
             )
 
     @classmethod
     def notify(cls):
         notification = Notify()
-        notification.title = cls.app_name
         notification.message = cls.prepare_notification()
-        notification.icon = 'assests/leetcoin.png'
+        notification.title = f'{cls.app_name} - {cls.challenge.difficulty} ' \
+                             f'Problem Alert \U0001F514'
+        notification.icon = 'assets/leetcoin.png'
         notification.send()
diff --git a/requirements.txt b/requirements.txt
index d99ae34..07e08ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,22 +1,3 @@
-certifi==2022.9.14
-charset-normalizer==2.1.1
-idna==3.4
-requests==2.28.1
-urllib3==1.26.12
-attrs==22.1.0
-certifi==2022.9.14
-charset-normalizer==2.1.1
-idna==3.4
-iniconfig==1.1.1
-packaging==21.3
-pluggy==1.0.0
-py==1.11.0
-pyparsing==3.0.9
-pytest==7.1.3
-pytest-mock==3.8.2
-requests==2.28.1
-tomli==2.0.1
-urllib3==1.26.12
 attrs==22.1.0
 certifi==2022.9.24
 charset-normalizer==2.1.1
@@ -25,13 +6,14 @@ idna==3.4
 iniconfig==1.1.1
 jeepney==0.8.0
 loguru==0.5.3
+mccabe==0.7.0
 notify-py==0.3.3
 packaging==21.3
 pluggy==1.0.0
 py==1.11.0
+pycodestyle==2.9.1
+pyflakes==2.5.0
 pyparsing==3.0.9
-pytest==7.1.3
-pytest-mock==3.8.2
 requests==2.28.1
 schedule==1.1.0
 tomli==2.0.1
diff --git a/setup.cfg b/setup.cfg
index 900d2c4..c33b5fa 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = leet-easy
-version = 0.0.1
+version = 0.1.0
 author = Sudipto Baral
 author_email = sudiptobaral.me@gmail.com
 description = Desktop notification of easy daily challenge of leetcode.
@@ -32,25 +32,6 @@ install_requires =
 
 [options.packages.find]
 where =
-    certifi==2022.9.14
-    charset-normalizer==2.1.1
-    idna==3.4
-    requests==2.28.1
-    urllib3==1.26.12
-    attrs==22.1.0
-    certifi==2022.9.14
-    charset-normalizer==2.1.1
-    idna==3.4
-    iniconfig==1.1.1
-    packaging==21.3
-    pluggy==1.0.0
-    py==1.11.0
-    pyparsing==3.0.9
-    pytest==7.1.3
-    pytest-mock==3.8.2
-    requests==2.28.1
-    tomli==2.0.1
-    urllib3==1.26.12
     attrs==22.1.0
     certifi==2022.9.24
     charset-normalizer==2.1.1
@@ -59,13 +40,14 @@ where =
     iniconfig==1.1.1
     jeepney==0.8.0
     loguru==0.5.3
+    mccabe==0.7.0
     notify-py==0.3.3
     packaging==21.3
     pluggy==1.0.0
     py==1.11.0
+    pycodestyle==2.9.1
+    pyflakes==2.5.0
     pyparsing==3.0.9
-    pytest==7.1.3
-    pytest-mock==3.8.2
     requests==2.28.1
     schedule==1.1.0
     tomli==2.0.1