diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 41654dfe6e..e7bccae892 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -195,6 +195,7 @@ static const QString FBX_EXTENSION  = ".fbx";
 static const QString OBJ_EXTENSION  = ".obj";
 static const QString AVA_JSON_EXTENSION = ".ava.json";
 
+static const int MSECS_PER_SEC = 1000;
 static const int MIRROR_VIEW_TOP_PADDING = 5;
 static const int MIRROR_VIEW_LEFT_PADDING = 10;
 static const int MIRROR_VIEW_WIDTH = 265;
@@ -365,7 +366,7 @@ bool setupEssentials(int& argc, char** argv) {
 
     Setting::preInit();
 
-    CrashHandler::checkForAndHandleCrash();
+    bool previousSessionCrashed = CrashHandler::checkForAndHandleCrash();
     CrashHandler::writeRunningMarkerFiler();
     qAddPostRoutine(CrashHandler::deleteRunningMarkerFile);
 
@@ -427,7 +428,7 @@ bool setupEssentials(int& argc, char** argv) {
     DependencyManager::set<InterfaceParentFinder>();
     DependencyManager::set<EntityTreeRenderer>(true, qApp, qApp);
     DependencyManager::set<CompositorHelper>();
-    return true;
+    return previousSessionCrashed;
 }
 
 // FIXME move to header, or better yet, design some kind of UI manager
@@ -448,10 +449,13 @@ PluginContainer* _pluginContainer;
 OffscreenGLCanvas* _chromiumShareContext { nullptr };
 Q_GUI_EXPORT void qt_gl_set_global_share_context(QOpenGLContext *context);
 
+Setting::Handle<int> sessionRunTime{ "sessionRunTime", 0 };
+
 Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer) :
     QApplication(argc, argv),
     _window(new MainWindow(desktop())),
-    _dependencyManagerIsSetup(setupEssentials(argc, argv)),
+    _sessionRunTimer(startupTimer),
+    _previousSessionCrashed(setupEssentials(argc, argv)),
     _undoStackScriptingInterface(&_undoStack),
     _frameCount(0),
     _fps(60.0f),
@@ -601,7 +605,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer) :
     connect(&domainHandler, SIGNAL(disconnectedFromDomain()), SLOT(clearDomainOctreeDetails()));
 
     // update our location every 5 seconds in the metaverse server, assuming that we are authenticated with one
-    const qint64 DATA_SERVER_LOCATION_CHANGE_UPDATE_MSECS = 5 * 1000;
+    const qint64 DATA_SERVER_LOCATION_CHANGE_UPDATE_MSECS = 5 * MSECS_PER_SEC;
 
     auto discoverabilityManager = DependencyManager::get<DiscoverabilityManager>();
     connect(&locationUpdateTimer, &QTimer::timeout, discoverabilityManager.data(), &DiscoverabilityManager::updateLocation);
@@ -623,7 +627,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer) :
     // connect to appropriate slots on AccountManager
     AccountManager& accountManager = AccountManager::getInstance();
 
-    const qint64 BALANCE_UPDATE_INTERVAL_MSECS = 5 * 1000;
+    const qint64 BALANCE_UPDATE_INTERVAL_MSECS = 5 * MSECS_PER_SEC;
 
     connect(&balanceUpdateTimer, &QTimer::timeout, &accountManager, &AccountManager::updateBalance);
     balanceUpdateTimer.start(BALANCE_UPDATE_INTERVAL_MSECS);
@@ -638,7 +642,9 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer) :
     accountManager.setIsAgent(true);
     accountManager.setAuthURL(NetworkingConstants::METAVERSE_SERVER_URL);
 
-    UserActivityLogger::getInstance().launch(applicationVersion());
+    // sessionRunTime will be reset soon by loadSettings. Grab it now to get previous session value.
+    // The value will be 0 if the user blew away settings this session, which is both a feature and a bug.
+    UserActivityLogger::getInstance().launch(applicationVersion(), _previousSessionCrashed, sessionRunTime.get());
 
     // once the event loop has started, check and signal for an access token
     QMetaObject::invokeMethod(&accountManager, "checkAndSignalForAccessToken", Qt::QueuedConnection);
@@ -2804,6 +2810,7 @@ bool Application::exportEntities(const QString& filename, float x, float y, floa
 
 void Application::loadSettings() {
 
+    sessionRunTime.set(0); // Just clean living. We're about to saveSettings, which will update value.
     DependencyManager::get<AudioClient>()->loadSettings();
     DependencyManager::get<LODManager>()->loadSettings();
 
@@ -2817,6 +2824,7 @@ void Application::loadSettings() {
 }
 
 void Application::saveSettings() {
+    sessionRunTime.set(_sessionRunTimer.elapsed() / MSECS_PER_SEC);
     DependencyManager::get<AudioClient>()->saveSettings();
     DependencyManager::get<LODManager>()->saveSettings();
 
diff --git a/interface/src/Application.h b/interface/src/Application.h
index 3b906a7d17..695d30998a 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -377,8 +377,9 @@ private:
     void maybeToggleMenuVisible(QMouseEvent* event);
 
     MainWindow* _window;
+    QElapsedTimer& _sessionRunTimer;
 
-    bool _dependencyManagerIsSetup;
+    bool _previousSessionCrashed;
 
     OffscreenGLCanvas* _offscreenContext { nullptr };
     DisplayPluginPointer _displayPlugin;
diff --git a/interface/src/CrashHandler.cpp b/interface/src/CrashHandler.cpp
index 5a194973b4..50cca15c88 100644
--- a/interface/src/CrashHandler.cpp
+++ b/interface/src/CrashHandler.cpp
@@ -27,7 +27,7 @@
 
 static const QString RUNNING_MARKER_FILENAME = "Interface.running";
 
-void CrashHandler::checkForAndHandleCrash() {
+bool CrashHandler::checkForAndHandleCrash() {
     QFile runningMarkerFile(runningMarkerFilePath());
     if (runningMarkerFile.exists()) {
         QSettings::setDefaultFormat(QSettings::IniFormat);
@@ -42,7 +42,9 @@ void CrashHandler::checkForAndHandleCrash() {
                 handleCrash(action);
             }
         }
+        return true;
     }
+    return false;
 }
 
 CrashHandler::Action CrashHandler::promptUserForAction() {
diff --git a/interface/src/CrashHandler.h b/interface/src/CrashHandler.h
index 61361b6107..18c935b595 100644
--- a/interface/src/CrashHandler.h
+++ b/interface/src/CrashHandler.h
@@ -17,7 +17,7 @@
 class CrashHandler {
 
 public:
-    static void checkForAndHandleCrash();
+    static bool checkForAndHandleCrash();
 
     static void writeRunningMarkerFiler();
     static void deleteRunningMarkerFile();
diff --git a/libraries/networking/src/UserActivityLogger.cpp b/libraries/networking/src/UserActivityLogger.cpp
index f2019ba9a9..2e74a5166c 100644
--- a/libraries/networking/src/UserActivityLogger.cpp
+++ b/libraries/networking/src/UserActivityLogger.cpp
@@ -78,11 +78,15 @@ void UserActivityLogger::requestError(QNetworkReply& errorReply) {
     qCDebug(networking) << errorReply.error() << "-" << errorReply.errorString();
 }
 
-void UserActivityLogger::launch(QString applicationVersion) {
+void UserActivityLogger::launch(QString applicationVersion, bool previousSessionCrashed, int previousSessionRuntime) {
     const QString ACTION_NAME = "launch";
     QJsonObject actionDetails;
     QString VERSION_KEY = "version";
+    QString CRASH_KEY = "previousSessionCrashed";
+    QString RUNTIME_KEY = "previousSessionRuntime";
     actionDetails.insert(VERSION_KEY, applicationVersion);
+    actionDetails.insert(CRASH_KEY, previousSessionCrashed);
+    actionDetails.insert(RUNTIME_KEY, previousSessionRuntime);
     
     logAction(ACTION_NAME, actionDetails);
 }
diff --git a/libraries/networking/src/UserActivityLogger.h b/libraries/networking/src/UserActivityLogger.h
index 2811be86a8..8eda086521 100644
--- a/libraries/networking/src/UserActivityLogger.h
+++ b/libraries/networking/src/UserActivityLogger.h
@@ -29,7 +29,7 @@ public slots:
     void disable(bool disable);
     void logAction(QString action, QJsonObject details = QJsonObject(), JSONCallbackParameters params = JSONCallbackParameters());
     
-    void launch(QString applicationVersion);
+    void launch(QString applicationVersion, bool previousSessionCrashed, int previousSessionRuntime);
     
     void changedDisplayName(QString displayName);
     void changedModel(QString typeOfModel, QString modelURL);