The OS on mobile phones will never allow real applications or VBA to run. It isn't a bad thing, it is just not what they were designed for.
Citrix has some seminars that allow mobile to connect to a server where Office products run in a virtual sandbox over a thin-client.
Microsoft actually offers this as one of its Office 365 options, but they made it so complex to understand and worse, they require a large group licensing (no individual) to qualify for it.
Citrix seems to understand the advantage of reaching out to smaller developers and is running seminars. With that said, they may need a couple of years to actually figure it out.
For now, it might be a subscribed Citrix service with a SILK web interface. A 5 concurrent user license pack shared might go a long way?
e.g.
https://www.citrix.com/products/xenmobile/tech-info/worx-mobile-apps.html
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