He basically was not a fan of it, and said they most likely won't work in the future (Because of the changing of data gathered from Niantec, this is why some apps still work, and some apps are no longer working after the update, pokevision statement seems to be ). All of this is against their terms of services  as well, in that statement. 

They could have had communication with Pokevision directly, but from what I gathered from the head of Pokevision, is that he was respecting Niantec's wishes, not that he was specifically sent C&D. 

Or maybe they just want to make the experience feel more real, Ash doesn't have a tracking system after all

Being the very best ain't easy, you gotta work hard

click on the button on the lower right. It has an option to favorite the pokemon or transfer 

This update really highlights that Pokemon Go should have had a few more months of development before release, if the initial release didn't seal that already. I get that there are things a developer can only really understand with an app like this once they get an idea of what the full server load will be, but when they have the audacity to release a game that is basically an alpha build and then fail to communicate in anyway when they clearly were not ready, it shatters confidence in the product. There are fundamental aspects of the game that don't work as intended, and rather than fixing them, the first noteworthy update since the game launch makes it that much more of a chore to play.

It might help if Niantic actually communicated, ever. They've put themselves in the public eye just long enough to say "FEATURES ARE COMING GAIS" and then fled back into their hole where legitimate complaints can't reach them. Then we have to operate off of good faith, that Niantic absolutely has not earned, in assuming that with the loss of the previously broken tracker, it is just to fix it and bring it back. I mean, Niantic has not in anyway indicated that removal until fix is their intent, but we are in such disbelief that they would remove a fundamental means of Pokemon hunting and playing the game that we have to believe the optimism.

Honestly, Pokemon Go was already borderline trash. It is a buggy nightmare of an app that barely works as intended more than 50% of the time, and even then, the times it seems to actually be working reveals a whole slew of other bugs. This is coming from someone who easily put around 20+ hours into it and even spent about $10 like an idiot. With this update and the subsequent removal of reliable third party trackers, I have absolutely no problem saying that Pokemon Go is truly trash, amateur hour app that has no business being seen as an even remotely competent venture.

Any other app this garbage would be skewered from day one, but hey, let's give this one a pass because it's Pokemon. This is not at all sending a terrible message to Nintendo about how they can consider future app releases, I'm sure.

I am in the same boat. Living in regional Australia, the population density allows for perhaps a few good spawns in the area per day. The fact that the radar is broken only adds to the frustration by lowering those already low chances of catching something decent.

I'm all for not allowing people to fill up their Pokedex too quickly, but people who spend an entire week of their free time and come up with nothing new are bound to start feeling that it isn't worth the effort.

If PokeVision shut itself down, they woud have announced it properly, instead of the cryptic "I wish we had news to tell you" tweet on Twitter. 

Also, several other sites providing the same service shut down at the same time. Do you believe that they all had the same intention at once? (The comment from the Niantic CEO is a few days old now...)

Just found something like Pokevision made just for the city I live in. Its not quite as good but it does the job.

The shutting down of those websites has more to do with the update messing everything up for them. They will be back in full force once they learn how to get behind Niantec's servers (which by the way, is against terms and condition since day 1).

Their are other formats of services provided by others, that use different system of gathering data that fully work still. 

Will I still be able to catch Pokemon without this update, or will I be locked out after a few days/weeks? This sounds incredibly unappealing as it is now.