On June 30, 2019 IBM will end support for the IBM Connections Editor mobile application and remove it from the Apple and Google app stores.

Effective June 30, 2019 IBM will no longer support or feature the IBM Connections Editor application for mobile devices on the Apple or Google app stores. Customers will no  longer be able to download the application to their devices; however existing installations on phones or tablets will continue to work and usage is covered under the included license.
Please note that starting June 30, 2019 IBM will no longer support the IBM Connections Editor application.

Alternatives

Since IBM released the IBM Connections Editor, enhancements in the respective mobile operating systems made it possible to better integrate office document editors of choice which reduces the need for a dedicated office suite. IBM Connections mobile users can open documents in their preferred office editing application via the “Open In’ command; alternatively iOS users can also use the Apple Files app on their devices to conveniently open or edit IBM Connections documents there.

Link to the official IBM announcement: https://www-01.ibm.com/support/docview.wss?uid=ibm10791201&myns=swglotus&mynp=OCSSYGQH&mync=E&cm_sp=swglotus-_-OCSSYGQH-_-E