I’m sure you are right, but... I am hugely disappointed in the lack of J interest shown in the iPhone App Store; it is listed under Education, with the unlikely-to-guess name “J701”, and has earned only five reviews, only one of which can be displayed! This for what is likely the most powerful app on my iThings. It (and JHS now that my old MacBook can’t support QT) is the only thing that helps me remember the little I know about the J language.
Re the iOS version, here is a random thought from the bottom of one of my rabbit holes: I had expected more from the iOS Workflow/tasks capability added to Siri, and (perhaps) one limitation is a lack of a wide range of available general purpose tasks. What would it take to build an app that could publish a bunch of Workflow tasks implemented by calls to JE and the J application library? > On Jul 26, 2019, at 3:26 PM, Skip Cave <s...@caveconsulting.com> wrote: > > The conciseness of J as well as the compactness of the J interpreter, makes > it particularly suited for use on a modern smartphone. Android-OS-based > phones are the most popular phones on the planet. > *Mobile Operating System* Market Share Worldwide - June 2019 > Android 76.03% > iOS 22.04% > KaiOS 0.79% > > It would potentially be worthwhile to build a robust J language environment > on the Android OS, which could be placed on the Google Play Store. The > Google Play Store is on billions of phones all over the world, and would > give visibility of J to a much wider audience. Also, one should not > underestimate the power of a "one-click" install, for a free app that > promises the power that J has. > > I would envision a J application on Android which would follow as closely > as possible a two-window paradigm on Windows (one window for the Qt IDE, > and one window for the editor). The Android UI should provide a vertical > split-screen, showing the execution window on top and the editor window > below, with an adjustable boundary between them. A single click should pop > either window to full screen, or back to a split. This scheme will need to > have a custom pop-up J keyboard auto-installed (draggable pop-up), with > substitute mechanisms for cntrl-R (copying editor verbs into the execution > window) as well as other J control functions. > > I believe this approach could have a significant impact on getting > non-programmers to use J as an everyday calculator substitute, providing > much more powerful functions, with automatic execution & result history in > the interactive execution window. J libraries like stats or finance could > be presented as J addons in the Play Store, with an overview for each > library addon in the store. Once the app is in the store, J users can > install it with a click, and then give glowing (hopefully) comments on the > app, which will raise it's ratings in the store. > > For that matter, you might even want to charge for the interpreter, or > maybe for just charge for the library addons (remember the razor & blades > scheme?). In many cases, charging a modest amount for an app raises it's > perceived value, even before the purchase. I built an app for the iPhone, > (Tune Transformer), charged a pop fee it, and have received a steady income > each year, though it has tapered off recently. I have been tempted to port > the app to Android, but I'm not a system programmer. I contracted out my > signal processing math and UI design to an iPhone app developer group, so > they ported the signal processing code and implemented my UI design so I > could put it on the Apple store. > > Promoting the app on the Google Play Store using a promo video showing the > amazing power of J, could bring a whole new set of J users to the language. > > Skip > > Skip Cave > Cave Consulting LLC > > > On Fri, Jul 26, 2019 at 12:21 AM Linda Alvord <lindaalvor...@outlook.com> > wrote: > >> It would be great to have J as an app in an app store. >> >> What route would you offer as the easiest route for getting J installed as >> easily as possible on a phone or table? >> Linda >> >> >> >> >> >> >> Sent from my Verizon, Samsung Galaxy smartphone >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
