If you are experiencing login issues please create a ticket with Warframe Support:
https://digitalextremes.zendesk.com

This official companion app for Warframe lets you check your Inventory to plan for your next mission build and claim items from the Foundry take care of your Kubrow refine Relics deploy and collect Extractors and more all while on the go!

You can also dynamically tracks active Alerts Sorties Invasions and Void fissures. This app supports push notifications.

For troubleshooting tips and support please visit:
https://digitalextremes.zendesk.com/hc/en-us/articles/360006829311-Warframe-App-Troubleshooting

Thank you