The one and only time I used the app it lost connectivity and left my chuck roast in lukewarm water for who knows how long. Tossed it because I didn't want to kill my family with food poisoning. It's nice if you have a WIFI connected device, so you can put something on the counter in an ice water bath in the morning with the sous vide wand in there and flip it on before you leave work in the afternoon. Also seeing that the water has maintained an appropriate temp during a long cook is nice too. It's a niche case use, but that's why it's nice to have it connected.

I have a different brand, but I can see the value. The interface on the small screen on the device I have is very clumsy. Took me a while to figure it out, and I'm very tech savvy. I can see a mobile app being useful, also for notifications so I don't independently have to set timers.

Also as a former mobile dev, mobile apps take maintenance to keep up with OS changes over time. And developers are expensive.

What I imagine happened is that they probably outsourced their app development to a 3rd party, because they make hardware, not software. That contract probably expired, including their ongoing support agreement, and they've probably negotiated an hourly rate for support on-demand going forward, maybe with a different 3rd party dev.

So in all likelihood, they're just passing the cost for ongoing maintenance on an EOL model to the customer.

However, that looks absolutely insane from a consumer standpoint.

I don't know their Financials, but they may not be big enough to just swallow the cost for brand PR if they're not selling at a volume and profit margin to be able lose money on old products.

This is why, even as a dev that used to work in the mobile and IOT space, I tend to purchase dumb devices if there are good options. Smart devices get dumb as soon as the shine has dulled.

My partner has an Anovo affected by this and he knows the details better than me, but IIRC the app allows you to set times to change temps or things like that. The device still works without the app, but you lose the convenience factor of being able to monitor or make changes at a distance.

It's kinda nice to just search what you are making, click cook, and all the settings are preloaded and the device starts. The manual interface is clunky.

Size and easy to clean (and waterproof) is one, I have a ChefSteps Joule which is app control only, but it is much easier to clean, and much smaller than my old Anova (fits in a drawer with other crap)

Granted it is more annoying to use the app than the controls, but the trade off for us was worth it, if not for everyone.

I have one, and didn't know it had an app.