diff --git a/app/src/main/java/com/herbron/moodl/Activities/CurrencySelectionActivity.java b/app/src/main/java/com/herbron/moodl/Activities/CurrencySelectionActivity.java
index c15e4ea..caa2cd1 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/CurrencySelectionActivity.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/CurrencySelectionActivity.java
@@ -46,7 +46,7 @@ public class CurrencySelectionActivity extends AppCompatActivity implements Sear
 
         currencyDetailsList = CurrencyDetailsList.getInstance(this);
 
-        setTitle("Select a coin");
+        setTitle(getString(R.string.select_coin));
 
         Intent intent = getIntent();
         isWatchList = intent.getBooleanExtra("isWatchList", false);
@@ -103,7 +103,7 @@ public class CurrencySelectionActivity extends AppCompatActivity implements Sear
                     }
                     else
                     {
-                        Toast.makeText(getApplicationContext(), "Currency already in watchlist.", Toast.LENGTH_SHORT).show();
+                        Toast.makeText(getApplicationContext(), getString(R.string.already_watchlisr), Toast.LENGTH_SHORT).show();
                     }
                 }
                 else
diff --git a/app/src/main/java/com/herbron/moodl/Activities/DetailsActivityFragments/Informations.java b/app/src/main/java/com/herbron/moodl/Activities/DetailsActivityFragments/Informations.java
index 1fb345b..482cc55 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/DetailsActivityFragments/Informations.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/DetailsActivityFragments/Informations.java
@@ -120,7 +120,7 @@ public class Informations extends Fragment {
         ((TextView) view.findViewById(R.id.txtViewDescription))
                 .setMovementMethod(LinkMovementMethod.getInstance());
         ((TextView) view.findViewById(R.id.txtViewPercentageCoinEmited))
-                .setText("Percentage of coin emited : " + numberConformer(currency.getMinedCoinSupply() / currency.getMaxCoinSupply() * 100) + "%");
+                .setText(PlaceholderManager.getEmitedPercentageString(numberConformer(currency.getMinedCoinSupply() / currency.getMaxCoinSupply() * 100), getContext()));
 
         if(currency.getMarketCapitalization() != 0)
         {
diff --git a/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java b/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java
index 056c71b..cf8f721 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java
@@ -341,8 +341,8 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface,
 
     private void showErrorSnackbar()
     {
-        Snackbar.make(getActivity().findViewById(R.id.content_frame), "Error while updating data", Snackbar.LENGTH_LONG)
-                .setAction("Update", new View.OnClickListener() {
+        Snackbar.make(getActivity().findViewById(R.id.content_frame), getString(R.string.error_update_data), Snackbar.LENGTH_LONG)
+                .setAction(getString(R.string.update), new View.OnClickListener() {
                     @Override
                     public void onClick(View view) {
 
@@ -584,7 +584,7 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface,
             {
                 case "com.android.volley.AuthFailureError":
                     preferencesManager.disableHitBTC();
-                    Snackbar.make(view, "HitBTC synchronization error : Invalid keys", Snackbar.LENGTH_LONG)
+                    Snackbar.make(view, getString(R.string.invalid_keys_hitbtc), Snackbar.LENGTH_LONG)
                             .show();
 
                     refreshLayout.setRefreshing(false);
@@ -593,19 +593,19 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface,
                     break;
                 case "API-key format invalid.":
                     preferencesManager.disableBinance();
-                    Snackbar.make(view, "Binance synchronization error : Invalid keys", Snackbar.LENGTH_LONG)
+                    Snackbar.make(view, getString(R.string.invalid_keys_binance), Snackbar.LENGTH_LONG)
                             .show();
 
                     updateAll(true);
                     break;
                 case "com.android.volley.NoConnectionError: java.net.UnknownHostException: Unable to resolve host \"api.hitbtc.com\": No address associated with hostname":
-                    Snackbar.make(view, "Can't resolve host", Snackbar.LENGTH_LONG)
+                    Snackbar.make(view, getString(R.string.cannot_resole_host), Snackbar.LENGTH_LONG)
                             .show();
                     break;
                 case "com.android.volley.TimeoutError":
                     break;
                 default:
-                    Snackbar.make(view, "Unexpected error", Snackbar.LENGTH_LONG)
+                    Snackbar.make(view, R.string.unexpected, Snackbar.LENGTH_LONG)
                             .show();
 
                     Log.d("moodl", error);
diff --git a/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java b/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java
index 3646eaa..3d2644c 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java
@@ -19,6 +19,7 @@ import com.herbron.moodl.DataManagers.CurrencyData.Currency;
 import com.herbron.moodl.DataManagers.CurrencyData.Transaction;
 import com.herbron.moodl.DataManagers.DatabaseManager;
 import com.herbron.moodl.DataManagers.PreferencesManager;
+import com.herbron.moodl.PlaceholderManager;
 import com.herbron.moodl.R;
 
 import java.text.ParseException;
@@ -168,7 +169,7 @@ public class RecordTransactionActivity extends AppCompatActivity {
 
         if(transactionId != -1)
         {
-            setTitle("Edit " + coin + " transaction");
+            setTitle(PlaceholderManager.getEditTransactionString(coin, getBaseContext()));
 
             DatabaseManager databaseManager = new DatabaseManager(this);
             Transaction transaction = databaseManager.getCurrencyTransactionById(transactionId);
@@ -180,7 +181,7 @@ public class RecordTransactionActivity extends AppCompatActivity {
         }
         else
         {
-            setTitle("Add " + coin + " transaction");
+            setTitle(PlaceholderManager.getAddCoinTransactionString(coin, getBaseContext()));
 
             purchaseDate.setText(sdf.format(calendar.getTime()));
             symbolTxtView.setText(symbol);
@@ -300,7 +301,6 @@ public class RecordTransactionActivity extends AppCompatActivity {
                                 purchasedPriceEditText.setText(price);
                             }
                         }, calendar.getTimeInMillis() / 1000);
-                        Log.d("moodl", "Time : " + calendar.getTimeInMillis());
                     }
                 },
                 calendar.get(Calendar.HOUR_OF_DAY),
diff --git a/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java b/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java
index 2ae23cc..5bfdf0f 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java
@@ -465,8 +465,8 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                         }
                     });
 
-                    dialogBuilder.setTitle("Create backup");
-                    dialogBuilder.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
+                    dialogBuilder.setTitle(getString(R.string.create_backup));
+                    dialogBuilder.setPositiveButton(getString(R.string.confirm), new DialogInterface.OnClickListener() {
                         public void onClick(DialogInterface dialog, int whichButton) {
 
                             checkPermissions();
@@ -510,7 +510,7 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                             dialog.dismiss();
                         }
                     });
-                    dialogBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+                    dialogBuilder.setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
                         public void onClick(DialogInterface dialog, int whichButton) {
                             dialog.dismiss();
                         }
@@ -621,7 +621,7 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                                     }
                                     else
                                     {
-                                        textInputLayoutPassword.setError("Wrong password");
+                                        textInputLayoutPassword.setError(getString(R.string.wrong_password));
                                     }
 
                                 } catch (JSONException e) {
diff --git a/app/src/main/java/com/herbron/moodl/FingerprintToolkit/FingerprintHandler.java b/app/src/main/java/com/herbron/moodl/FingerprintToolkit/FingerprintHandler.java
index 1316587..5964de8 100644
--- a/app/src/main/java/com/herbron/moodl/FingerprintToolkit/FingerprintHandler.java
+++ b/app/src/main/java/com/herbron/moodl/FingerprintToolkit/FingerprintHandler.java
@@ -8,6 +8,8 @@ import android.os.CancellationSignal;
 import android.os.Handler;
 import android.support.v4.app.ActivityCompat;
 
+import com.herbron.moodl.R;
+
 /**
  * Created by Guitoune on 28/02/2018.
  */
@@ -39,7 +41,7 @@ public class FingerprintHandler extends FingerprintManager.AuthenticationCallbac
     {
         if(dialogFragment.isVisible())
         {
-            dialogFragment.wrongFingerprint("Error");
+            dialogFragment.wrongFingerprint(context.getString(R.string.error));
             new Handler().postDelayed(new Runnable() {
                 @Override
                 public void run() {
@@ -57,7 +59,7 @@ public class FingerprintHandler extends FingerprintManager.AuthenticationCallbac
     {
         if(dialogFragment.isVisible())
         {
-            dialogFragment.wrongFingerprint("Wrong fingerprint");
+            dialogFragment.wrongFingerprint(context.getString(R.string.wrong_fingerprint));
             new Handler().postDelayed(new Runnable() {
                 @Override
                 public void run() {
diff --git a/app/src/main/java/com/herbron/moodl/PlaceholderManager.java b/app/src/main/java/com/herbron/moodl/PlaceholderManager.java
index fdf4fb1..9b6edb7 100644
--- a/app/src/main/java/com/herbron/moodl/PlaceholderManager.java
+++ b/app/src/main/java/com/herbron/moodl/PlaceholderManager.java
@@ -1,5 +1,7 @@
 package com.herbron.moodl;
 
+import android.content.Context;
+
 import com.herbron.moodl.DataManagers.PreferencesManager;
 
 /**
@@ -32,7 +34,21 @@ public class PlaceholderManager {
         return formattedString;
     }
 
-    public static String getValuePercentageString(String value, String percentage, android.content.Context context)
+    public static String getAddCoinTransactionString(String coinName, Context context) {
+        return context.getResources().getString(R.string.add_coin_transaction, coinName);
+    }
+
+    public static String getEditTransactionString(String coinName, Context context)
+    {
+        return context.getResources().getString(R.string.edit_transaction, coinName);
+    }
+
+    public static String getEmitedPercentageString(String percentage, Context context)
+    {
+        return context.getResources().getString(R.string.emitedPlaceholder, percentage);
+    }
+
+    public static String getValuePercentageString(String value, String percentage, Context context)
     {
         PreferencesManager preferencesManager = new PreferencesManager(context);
         String formattedString = null;
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 4427267..ac0ce6f 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -116,4 +116,19 @@
         <item>6 mois</item>
         <item>1 année</item>
     </string-array>
+    <string name="emitedPlaceholder">Pourcentage de coin émis : %1$s%%</string>
+    <string name="edit_transaction">Edition d\'une transaction de %1$s</string>
+    <string name="add_coin_transaction">Ajouter d\'une transaction de %1$s</string>
+    <string name="error_update_data">Erreur lors de l\'actualisation des données</string>
+    <string name="update">Rafraichir</string>
+    <string name="invalid_keys_hitbtc">Erreur de synchronisation avec HitBTC : Clefs invalides</string>
+    <string name="invalid_keys_binance">Erreur de synchronisation avec Binance : Clefs invalides</string>
+    <string name="cannot_resole_host">Impossible de résoudre l\'hôte</string>
+    <string name="unexpected">Erreur inconnue</string>
+    <string name="select_coin">Selectionner une monnaie</string>
+    <string name="already_watchlisr">Monnaie déjà présente dans la liste suivie</string>
+    <string name="create_backup">Créer une sauvegarde</string>
+    <string name="wrong_password">Mauvais mot de passe</string>
+    <string name="error">Erreur</string>
+    <string name="wrong_fingerprint">Mauvaise empreinte digitale</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index ef89a40..d14a022 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -174,6 +174,7 @@
 
     <!--DetailsActivity placeholders-->
     <string name="timestampPlaceholder">Date\n%1$s</string>
+    <string name="emitedPlaceholder">Percentage of coin emitted : %1$s%%</string>
     <!--Dollar-->
     <string name="volumeDollarPlaceholder">Volume\nUS$%1$s</string>
     <string name="priceDollarPlaceholder">Price\nUS$%1$s</string>
@@ -190,6 +191,9 @@
     <string name="fingerprint_dialog_cancel">Cancel</string>
     <string name="fingerprint_dialog_title">Verify your fingerprint to continue</string>
 
+    <string name="edit_transaction">Edit %1$s transaction</string>
+    <string name="add_coin_transaction">Add %1$s transaction</string>
+
 
     <!--Marketcap placeholders-->
     <!--Dollar-->
@@ -219,5 +223,17 @@
     <string name="market_dominance">Market Cap Dominance</string>
     <string name="global">Global</string>
     <string name="other_coins">Other coins</string>
+    <string name="error_update_data">Error while updating data</string>
+    <string name="update">Update</string>
+    <string name="invalid_keys_hitbtc">HitBTC synchronization error : Invalid keys</string>
+    <string name="invalid_keys_binance">Binance synchronization error : Invalid keys</string>
+    <string name="cannot_resole_host">Can\'t resolve host</string>
+    <string name="unexpected">Unexpected error</string>
+    <string name="select_coin">Select a coin</string>
+    <string name="already_watchlisr">Currency already in watchlist</string>
+    <string name="create_backup">Create backup</string>
+    <string name="wrong_password">Wrong password</string>
+    <string name="error">Error</string>
+    <string name="wrong_fingerprint">Wrong fingerprint</string>
 
 </resources>