diff --git a/src/main.py b/src/main.py
index 962d4e1..ae80d49 100644
--- a/src/main.py
+++ b/src/main.py
@@ -2,7 +2,7 @@ from miniscord import Bot
 import logging
 
 from utils import emojis
-from scanners import EmotesScanner
+from scanners import EmotesScanner, FrequencyScanner
 
 logging.basicConfig(
     format="[%(asctime)s][%(levelname)s][%(module)s] %(message)s", level=logging.INFO
@@ -11,16 +11,22 @@ logging.basicConfig(
 emojis.load_emojis()
 
 bot = Bot(
-    "Discord Analyst",  # name
-    "1.6(wip)",  # version
-    alias="%",  # respond to '|command' messages
+    "Discord Analyst",
+    "1.6(wip)",
+    alias="%",
 )
 bot.log_calls = True
 bot.client.bot = bot  # TODO place in miniscord
 bot.register_command(
-    "emotes",  # command text (regex)
-    lambda *args: EmotesScanner().compute(*args),  # command function
-    "emotes: Emotes analysis",  # short help
+    "freq(ency)?",
+    lambda *args: FrequencyScanner().compute(*args),
+    "freq: Frequency analysis",
+    FrequencyScanner.help(),
+)
+bot.register_command(
+    "emotes",
+    lambda *args: EmotesScanner().compute(*args),
+    "emotes: Emotes analysis",
     EmotesScanner.help(),
 )
 bot.start()
diff --git a/src/scanners/__init__.py b/src/scanners/__init__.py
index f44b017..bdd5e40 100644
--- a/src/scanners/__init__.py
+++ b/src/scanners/__init__.py
@@ -1 +1 @@
-from .emotes_scanner import EmotesScanner
+from .emotes_scanner import EmotesScanner, FrequencyScanner
diff --git a/src/scanners/frequency_scanner.py b/src/scanners/frequency_scanner.py
index e69de29..adcddf3 100644
--- a/src/scanners/frequency_scanner.py
+++ b/src/scanners/frequency_scanner.py
@@ -0,0 +1,46 @@
+from typing import List
+import discord
+
+
+# Custom libs
+
+from .scanner import Scanner
+from utils.log_manager import ChannelLogs, MessageLog
+
+
+class FrequencyScanner(Scanner):
+    @staticmethod
+    def help() -> str:
+        return "```\n"
+        +"%freq : Show frequency-related statistics\n"
+        +"arguments:\n"
+        +"* @member : filter for one or more member\n"
+        +"* #channel : filter for one or more channel\n"
+        +"Example: %freq #mychannel1 @user\n"
+        +"```"
+
+    def __init__(self):
+        super().__init__(
+            help=FrequencyScanner.help(),
+            intro_context="frequency",
+        )
+
+    async def compute_args(self, message: discord.Message, *args: str) -> bool:
+        return True
+
+    def compute_message(self, channel: ChannelLogs, message: MessageLog):
+        return FrequencyScanner.analyse_message(message, self.raw_members)
+
+    def get_results(self, intro: str) -> List[str]:
+        res = [intro]
+        # TODO
+        return res
+
+    @staticmethod
+    def analyse_message(message: MessageLog, raw_members: List[int]) -> bool:
+        impacted = False
+        # If author is included in the selection (empty list is all)
+        if not message.bot and (len(raw_members) == 0 or message.author in raw_members):
+            impacted = True
+            # TODO
+        return impacted
diff --git a/src/scanners/scanner.py b/src/scanners/scanner.py
index 0685025..cfdf793 100644
--- a/src/scanners/scanner.py
+++ b/src/scanners/scanner.py
@@ -12,8 +12,8 @@ class Scanner(ABC):
     def __init__(
         self,
         *,
-        has_digit_args: bool,
-        valid_args: List[str],
+        has_digit_args: bool = False,
+        valid_args: List[str] = [],
         help: str,
         intro_context: str,
     ):