diff --git a/app/src/main/java/io/github/wulkanowy/WulkanowyApp.java b/app/src/main/java/io/github/wulkanowy/WulkanowyApp.java
index e4fd7ca9c..2ecc51090 100644
--- a/app/src/main/java/io/github/wulkanowy/WulkanowyApp.java
+++ b/app/src/main/java/io/github/wulkanowy/WulkanowyApp.java
@@ -3,6 +3,7 @@ package io.github.wulkanowy;
 import android.app.Application;
 
 import com.crashlytics.android.Crashlytics;
+import com.crashlytics.android.answers.Answers;
 import com.crashlytics.android.core.CrashlyticsCore;
 import com.jakewharton.threetenabp.AndroidThreeTen;
 
@@ -61,9 +62,12 @@ public class WulkanowyApp extends Application {
 
     private void initializeFabric() {
         Fabric.with(new Fabric.Builder(this)
-                .kits(new Crashlytics.Builder()
-                        .core(new CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build())
-                        .build())
+                .kits(
+                        new Crashlytics.Builder()
+                                .core(new CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build())
+                                .build(),
+                        new Answers()
+                )
                 .debuggable(BuildConfig.DEBUG)
                 .build());
     }
diff --git a/app/src/main/java/io/github/wulkanowy/data/db/dao/DbContract.java b/app/src/main/java/io/github/wulkanowy/data/db/dao/DbContract.java
index 38115cc45..34541d3ea 100644
--- a/app/src/main/java/io/github/wulkanowy/data/db/dao/DbContract.java
+++ b/app/src/main/java/io/github/wulkanowy/data/db/dao/DbContract.java
@@ -4,6 +4,7 @@ import java.util.List;
 
 import io.github.wulkanowy.data.db.dao.entities.Grade;
 import io.github.wulkanowy.data.db.dao.entities.Subject;
+import io.github.wulkanowy.data.db.dao.entities.Symbol;
 import io.github.wulkanowy.data.db.dao.entities.Week;
 
 public interface DbContract {
@@ -20,6 +21,8 @@ public interface DbContract {
 
     long getCurrentSymbolId();
 
+    Symbol getCurrentSymbol();
+
     long getCurrentDiaryId();
 
     long getSemesterId(int name);
diff --git a/app/src/main/java/io/github/wulkanowy/data/db/dao/DbRepository.java b/app/src/main/java/io/github/wulkanowy/data/db/dao/DbRepository.java
index 6757c48e7..43eee87ed 100644
--- a/app/src/main/java/io/github/wulkanowy/data/db/dao/DbRepository.java
+++ b/app/src/main/java/io/github/wulkanowy/data/db/dao/DbRepository.java
@@ -12,6 +12,7 @@ import io.github.wulkanowy.data.db.dao.entities.Semester;
 import io.github.wulkanowy.data.db.dao.entities.SemesterDao;
 import io.github.wulkanowy.data.db.dao.entities.StudentDao;
 import io.github.wulkanowy.data.db.dao.entities.Subject;
+import io.github.wulkanowy.data.db.dao.entities.Symbol;
 import io.github.wulkanowy.data.db.dao.entities.SymbolDao;
 import io.github.wulkanowy.data.db.dao.entities.Week;
 import io.github.wulkanowy.data.db.dao.entities.WeekDao;
@@ -57,10 +58,15 @@ public class DbRepository implements DbContract {
     }
 
     @Override
-    public long getCurrentSymbolId() {
+    public Symbol getCurrentSymbol() {
         return daoSession.getSymbolDao().queryBuilder().where(
                 SymbolDao.Properties.UserId.eq(sharedPref.getCurrentUserId())
-        ).unique().getId();
+        ).unique();
+    }
+
+    @Override
+    public long getCurrentSymbolId() {
+        return getCurrentSymbol().getId();
     }
 
     @Override
diff --git a/app/src/main/java/io/github/wulkanowy/ui/login/LoginPresenter.java b/app/src/main/java/io/github/wulkanowy/ui/login/LoginPresenter.java
index 3140ad785..e5b37a6ee 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/login/LoginPresenter.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/login/LoginPresenter.java
@@ -11,6 +11,7 @@ import io.github.wulkanowy.api.login.BadCredentialsException;
 import io.github.wulkanowy.data.RepositoryContract;
 import io.github.wulkanowy.ui.base.BasePresenter;
 import io.github.wulkanowy.utils.AppConstant;
+import io.github.wulkanowy.utils.FabricUtils;
 
 public class LoginPresenter extends BasePresenter<LoginContract.View>
         implements LoginContract.Presenter {
@@ -84,6 +85,7 @@ public class LoginPresenter extends BasePresenter<LoginContract.View>
     @Override
     public void onEndAsync(boolean success, Exception exception) {
         if (success) {
+            FabricUtils.logRegister(true, getRepository().getDbRepo().getCurrentSymbol().getSymbol());
             getView().openMainActivity();
             return;
         } else if (exception instanceof BadCredentialsException) {
@@ -93,6 +95,7 @@ public class LoginPresenter extends BasePresenter<LoginContract.View>
             getView().setErrorSymbolRequired();
             getView().showSoftInput();
         } else {
+            FabricUtils.logRegister(false, symbol);
             getView().onError(getRepository().getResRepo().getErrorLoginMessage(exception));
         }
 
diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/attendance/AttendanceTabPresenter.java b/app/src/main/java/io/github/wulkanowy/ui/main/attendance/AttendanceTabPresenter.java
index 47927feb4..72cab5d33 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/attendance/AttendanceTabPresenter.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/attendance/AttendanceTabPresenter.java
@@ -10,6 +10,7 @@ import io.github.wulkanowy.data.db.dao.entities.AttendanceLesson;
 import io.github.wulkanowy.data.db.dao.entities.Day;
 import io.github.wulkanowy.data.db.dao.entities.Week;
 import io.github.wulkanowy.ui.base.BasePresenter;
+import io.github.wulkanowy.utils.FabricUtils;
 import io.github.wulkanowy.utils.async.AbstractTask;
 import io.github.wulkanowy.utils.async.AsyncListeners;
 
@@ -88,6 +89,8 @@ public class AttendanceTabPresenter extends BasePresenter<AttendanceTabContract.
             getView().onError(getRepository().getResRepo().getErrorLoginMessage(exception));
         }
         getView().hideRefreshingBar();
+
+        FabricUtils.logRefresh("Attendance", result, date);
     }
 
     @Override
diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsTabPresenter.java b/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsTabPresenter.java
index 8c8914a0d..5925b3577 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsTabPresenter.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/exams/ExamsTabPresenter.java
@@ -10,6 +10,7 @@ import io.github.wulkanowy.data.db.dao.entities.Day;
 import io.github.wulkanowy.data.db.dao.entities.Exam;
 import io.github.wulkanowy.data.db.dao.entities.Week;
 import io.github.wulkanowy.ui.base.BasePresenter;
+import io.github.wulkanowy.utils.FabricUtils;
 import io.github.wulkanowy.utils.async.AbstractTask;
 import io.github.wulkanowy.utils.async.AsyncListeners;
 
@@ -93,6 +94,8 @@ public class ExamsTabPresenter extends BasePresenter<ExamsTabContract.View>
             getView().onError(getRepository().getResRepo().getErrorLoginMessage(exception));
         }
         getView().hideRefreshingBar();
+
+        FabricUtils.logRefresh("Exams", result, date);
     }
 
     @Override
diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesPresenter.java b/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesPresenter.java
index 0927d1458..1e99bbdea 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesPresenter.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesPresenter.java
@@ -1,5 +1,8 @@
 package io.github.wulkanowy.ui.main.grades;
 
+import com.crashlytics.android.answers.Answers;
+import com.crashlytics.android.answers.CustomEvent;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -10,6 +13,7 @@ import io.github.wulkanowy.data.db.dao.entities.Grade;
 import io.github.wulkanowy.data.db.dao.entities.Subject;
 import io.github.wulkanowy.ui.base.BasePresenter;
 import io.github.wulkanowy.ui.main.OnFragmentIsReadyListener;
+import io.github.wulkanowy.utils.FabricUtils;
 import io.github.wulkanowy.utils.async.AbstractTask;
 import io.github.wulkanowy.utils.async.AsyncListeners;
 
@@ -59,6 +63,9 @@ public class GradesPresenter extends BasePresenter<GradesContract.View>
         getView().setCurrentSemester(which);
 
         reloadGrades();
+
+        Answers.getInstance().logCustom(new CustomEvent("Semester change")
+                .putCustomAttribute("Name", semesterName));
     }
 
     private void reloadGrades() {
@@ -100,8 +107,8 @@ public class GradesPresenter extends BasePresenter<GradesContract.View>
     }
 
     @Override
-    public void onEndRefreshAsync(boolean success, Exception exception) {
-        if (success) {
+    public void onEndRefreshAsync(boolean result, Exception exception) {
+        if (result) {
             reloadGrades();
 
             int numberOfNewGrades = getRepository().getDbRepo().getNewGrades(semesterName).size();
@@ -115,6 +122,8 @@ public class GradesPresenter extends BasePresenter<GradesContract.View>
             getView().onError(getRepository().getResRepo().getErrorLoginMessage(exception));
         }
         getView().hideRefreshingBar();
+
+        FabricUtils.logRefresh("Grades", result, null);
     }
 
     @Override
diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/timetable/TimetableTabPresenter.java b/app/src/main/java/io/github/wulkanowy/ui/main/timetable/TimetableTabPresenter.java
index ca582726c..ef41c4c75 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/timetable/TimetableTabPresenter.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/timetable/TimetableTabPresenter.java
@@ -1,6 +1,5 @@
 package io.github.wulkanowy.ui.main.timetable;
 
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -11,6 +10,7 @@ import io.github.wulkanowy.data.db.dao.entities.Day;
 import io.github.wulkanowy.data.db.dao.entities.TimetableLesson;
 import io.github.wulkanowy.data.db.dao.entities.Week;
 import io.github.wulkanowy.ui.base.BasePresenter;
+import io.github.wulkanowy.utils.FabricUtils;
 import io.github.wulkanowy.utils.async.AbstractTask;
 import io.github.wulkanowy.utils.async.AsyncListeners;
 
@@ -91,6 +91,8 @@ public class TimetableTabPresenter extends BasePresenter<TimetableTabContract.Vi
             getView().onError(getRepository().getResRepo().getErrorLoginMessage(exception));
         }
         getView().hideRefreshingBar();
+
+        FabricUtils.logRefresh("Timetable", result, date);
     }
 
     @Override
diff --git a/app/src/main/java/io/github/wulkanowy/utils/FabricUtils.java b/app/src/main/java/io/github/wulkanowy/utils/FabricUtils.java
new file mode 100644
index 000000000..38811534c
--- /dev/null
+++ b/app/src/main/java/io/github/wulkanowy/utils/FabricUtils.java
@@ -0,0 +1,27 @@
+package io.github.wulkanowy.utils;
+
+import com.crashlytics.android.answers.Answers;
+import com.crashlytics.android.answers.CustomEvent;
+import com.crashlytics.android.answers.SignUpEvent;
+
+public final class FabricUtils {
+
+    private FabricUtils() {
+        throw new IllegalStateException("Utility class");
+    }
+
+    public static void logRegister(boolean result, String symbol) {
+        Answers.getInstance().logSignUp(new SignUpEvent()
+                .putMethod("Login activity")
+                .putSuccess(result)
+                .putCustomAttribute("symbol", symbol));
+    }
+
+    public static void logRefresh(String name, boolean result, String date) {
+        Answers.getInstance().logCustom(
+                new CustomEvent(name + " refresh")
+                        .putCustomAttribute("Success", result ? 1 : 0)
+                        .putCustomAttribute("Date", date)
+        );
+    }
+}
diff --git a/build.gradle b/build.gradle
index 3fbed0fd5..3be2d2d4e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ ext {
     dagger2 = "2.16"
     ahbottom = "2.2.0"
     jsoup = "1.11.3"
-    gson = "2.8.4"
+    gson = "2.8.5"
     ossLicenses = "15.0.1"
 
     debugDb = "1.0.3"
@@ -57,8 +57,8 @@ ext {
     mockito = "2.18.3"
     testRunner = "1.0.2"
 
-    fabricGradle = "1.25.3"
-    crashlyticsSdk = "2.9.2"
+    fabricGradle = "1.25.4"
+    crashlyticsSdk = "2.9.3"
     crashlyticsAnswers = "1.4.1"
 }