How to detect terminate of watchOS app?

I am writing SDK which will be used by watchOS apps. I need to catch the moment when the app is closed like at image. Or even when app cames from not running state to active state. For now I can only catch transition from inactive to active.
I already try:

_applicationWillEnterForegroundObserver = [notificationCenter addObserverForName:@"UIApplicationWillEnterForegroundNotification" object:NULL queue:NULL usingBlock:^(NSNotification * _Nonnull note) {
        [self willEnterForeground];
    }];
    _applicationDidBecomeActiveObserver = [notificationCenter addObserverForName: @"UIApplicationDidBecomeActiveNotification" object:NULL queue:NULL usingBlock:^(NSNotification * _Nonnull note) {
        [self didBecomeActive];
    }];
    [notificationCenter addObserverForName:@"UIApplicationWillTerminateNotification" object:NULL queue:NULL usingBlock:^(NSNotification * _Nonnull note) {
        [self willTerminate];
    }];
    _applicationWillResignActiveObserver = [notificationCenter addObserverForName:@"UIApplicationWillResignActiveNotification" object:NULL queue:NULL usingBlock:^(NSNotification * _Nonnull note) {
        [self willResignActive];
    }];

How can I achieve this?