Running django and flask on same apache server

I'm not sure if this would solve the problem, but have you tried changing the order of your script alias so that /app1 is found before / ?

WSGISocketPrefix /var/www/wsgi<VirtualHost *:80>        ServerAdmin name@email.com        ServerName  domain.com        ServerAlias www.domain.com        DocumentRoot /var/www/        LogLevel warn        WSGIDaemonProcess apache processes=2 maximum-requests=500 threads=1        WSGIProcessGroup apache        Alias /media /var/www/media/        WSGIScriptAlias /app1 /var/www/flaskapps/app.wsgi        WSGIScriptAlias / /var/www/djangoapps/django.wsgi</VirtualHost>

For anyone who want to achieve the same in 2018 this really helped me:

https://www.phusionpassenger.com/library/deploy/apache/deploy/python/

I know it is off topic, but I found this question like 20 searches before I found the link to the Description from Passenger....

How ev's here is an excert from the tutorial:

<VirtualHost *:80>    ServerName www.phusion.nl    DocumentRoot /websites/phusion/public<Directory /websites/phusion>    Allow from all    Options -MultiViews    # Uncomment this if you're on Apache >= 2.4:    #Require all granted</Directory>Alias /subapp /websites/secondapp/public<Location /subapp>    PassengerBaseURI /subapp    PassengerAppRoot /websites/secondapp    PassengerAppType wsgi    PassengerStartupFile passenger_wsgi.py</Location><Directory /websites/secondapp/public>    Allow from all    Options -MultiViews    # Uncomment this if you're on Apache >= 2.4:    #Require all granted</Directory>