diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
new file mode 100644
index 0000000..98b58b4
--- /dev/null
+++ b/app/src/main/res/values-cs/strings.xml
@@ -0,0 +1,86 @@
+<!--
+  ~ GNU General Public License v3.0
+  ~
+  ~ Copyright (c) 2021 Toh Jeen Gie Keith
+  ~
+  ~
+  ~ This file is part of Ohms Now!.
+  ~
+  ~ Ohms Now! is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ Ohms Now! is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with Ohms Now!.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<resources>
+    <string name="app_name">Ohms Now!</string>
+
+    <string name="band_menu_black">0\t\tČerná</string>
+    <string name="band_menu_brown">1\t\tHnědá</string>
+    <string name="band_menu_red">2\t\tČervená</string>
+    <string name="band_menu_orange">3\t\tOranžová</string>
+    <string name="band_menu_yellow">4\t\tŽlutá</string>
+    <string name="band_menu_green">5\t\tZelená</string>
+    <string name="band_menu_blue">6\t\tModrá</string>
+    <string name="band_menu_violet">7\t\tFialová</string>
+    <string name="band_menu_grey">8\t\tŠedivá</string>
+    <string name="band_menu_white">9\t\tBílá</string>
+
+    <string name="multiplier_band_3_4_pink">0.0xx Ω\t\tRůžová</string>
+    <string name="multiplier_band_3_4_silver">0.xx Ω\t\tStříbrná</string>
+    <string name="multiplier_band_3_4_gold">x.x Ω\t\tZlatá</string>
+    <string name="multiplier_band_3_4_black">xx Ω\t\tČerná</string>
+    <string name="multiplier_band_3_4_brown">xx0 Ω\t\tHnědá</string>
+    <string name="multiplier_band_3_4_red">x.x KΩ\t\tČervená</string>
+    <string name="multiplier_band_3_4_orange">xx KΩ\t\tOranžová</string>
+    <string name="multiplier_band_3_4_yellow">xx0 KΩ\t\tŽlutá</string>
+    <string name="multiplier_band_3_4_green">x.x MΩ\t\tZelená</string>
+    <string name="multiplier_band_3_4_blue">xx MΩ\t\tModrá</string>
+    <string name="multiplier_band_3_4_violet">xx0 MΩ\t\tFialová</string>
+    <string name="multiplier_band_3_4_grey">x.x GΩ\t\tŠedivá</string>
+    <string name="multiplier_band_3_4_white">xx GΩ\t\tBílá</string>
+
+    <string name="multiplier_band_5_6_pink">0.xxx Ω\t\tRůžová</string>
+    <string name="multiplier_band_5_6_silver">x.xx Ω\t\tStříbrná</string>
+    <string name="multiplier_band_5_6_gold">xx.x Ω\t\tZlatá</string>
+    <string name="multiplier_band_5_6_black">xxx Ω\t\tČerná</string>
+    <string name="multiplier_band_5_6_brown">x.xx KΩ\t\tHnědá</string>
+    <string name="multiplier_band_5_6_red">xx.x KΩ\t\tČervená</string>
+    <string name="multiplier_band_5_6_orange">xxx KΩ\t\tOranžová</string>
+    <string name="multiplier_band_5_6_yellow">x.xx MΩ\t\tŽlutá</string>
+    <string name="multiplier_band_5_6_green">xx.x MΩ\t\tZelená</string>
+    <string name="multiplier_band_5_6_blue">xxx MΩ\t\tModrá</string>
+    <string name="multiplier_band_5_6_violet">x.xx GΩ\t\tFialová</string>
+    <string name="multiplier_band_5_6_grey">xx.x GΩ\t\tŠedivá</string>
+    <string name="multiplier_band_5_6_white">xxx GΩ\t\tBílá</string>
+
+    <string name="temp_coef_band_black">250 ppm/K\t\tČerná</string>
+    <string name="temp_coef_band_brown">100 ppm/K\t\tHnědá</string>
+    <string name="temp_coef_band_red">50 ppm/K\t\tČervená</string>
+    <string name="temp_coef_band_orange">15 ppm/K\t\tOranžová</string>
+    <string name="temp_coef_band_yellow">25 ppm/K\t\tŽlutá</string>
+    <string name="temp_coef_band_green">20 ppm/K\t\tZelená</string>
+    <string name="temp_coef_band_blue">10 ppm/K\t\tModrá</string>
+    <string name="temp_coef_band_violet">5 ppm/K\t\tFialová</string>
+    <string name="temp_coef_band_grey">1 ppm/K\t\tŠedivá</string>
+
+    <string name="tolerance_band_none">20%\t\tŽádná</string>
+    <string name="tolerance_band_silver">10%\t\tStříbrná</string>
+    <string name="tolerance_band_gold">5%\t\tZlatá</string>
+    <string name="tolerance_band_brown">1%\t\tHnědá</string>
+    <string name="tolerance_band_red">2%\t\tČervená</string>
+    <string name="tolerance_band_orange">0.05%\t\tOranžová</string>
+    <string name="tolerance_band_yellow">0.02%\t\tŽlutá</string>
+    <string name="tolerance_band_green">0.5%\t\tZelená</string>
+    <string name="tolerance_band_blue">0.25%\t\tModrá</string>
+    <string name="tolerance_band_violet">0.1%\t\tFialová</string>
+    <string name="tolerance_band_grey">0.01%\t\tŠedivá</string>
+</resources>
diff --git a/fastlane/metadata/android/cs-CZ/full_description.txt b/fastlane/metadata/android/cs-CZ/full_description.txt
new file mode 100644
index 0000000..e773bbe
--- /dev/null
+++ b/fastlane/metadata/android/cs-CZ/full_description.txt
@@ -0,0 +1,9 @@
+<i>Ohms Now!</i> je jednoduchá aplikace, která vám pomůže dekódovat barevné proužky na rezistorech.
+
+Jednoduše klepněte na jakýkoliv proužek, abyste změnili jeho barvu. Až budete mít všechny proužky nastavené tak, aby odpovídaly vašemu rezistoru, můžete zjistit jeho hodnotu v textovém poli níže.
+
+Dlouhým podržením proužku se zobrazí okno, ve kterém můžete vybrat konkrétní barvu proužku.
+
+Přejetím doleva/doprava přejdete na předchozí/následující hodnotu řady E.
+
+V režimu s 5 proužky přejdete na režim s 6 klepnutím na ikonu '6' v pravém horním rohu. Klepnutím na ikonu (která se změnila na ikonu '5') znovu se vrátíte zpět do režimu s 5 proužky.
diff --git a/fastlane/metadata/android/cs-CZ/short_description.txt b/fastlane/metadata/android/cs-CZ/short_description.txt
new file mode 100644
index 0000000..42135b5
--- /dev/null
+++ b/fastlane/metadata/android/cs-CZ/short_description.txt
@@ -0,0 +1 @@
+Pomůže vám dekódovat barevné proužky na rezistorech