Last month, Microsoft launched the Visio for iPad Insider Program. As it turns out, it will be available for Android and Windows phones too. The company says that mobile applications are one of the core investment areas for Visio, along with the Windows desktop, data, and the ecosystem.
The new apps should have feature parity with the iOS app, which is currently in preview for the iPad and not generally available. The company showed off the new iOS app today at its Ignite 2016 conference, showing how easy it is to navigate through a large diagram. The presenter magnified his diagram to almost 200,000x.
Microsoft would not provide a timeframe for when these new apps will arrive - or even when Visio for iOS might come out of Preview - but instead simply said that these things are on the roadmap.
Later, when announcing other new features, the company confirmed that "on the roadmap" means that features will arrive within 1 1/2 to 2 years, although there's no reason to believe that we'll have to wait so long to see the new apps, at least in Preview form.