Sure you could use the phone app... if you wanted to read 20 pages of phone app, then the pages for connecting your wifi, then pages for troubleshooting wifi connection, then pages to see what happens after program1 if you dont set more...
You could discover it needs a 2.4ghz network, and your home system is all 5ghz, so you could get sidetracked redoing your router network like I did...
You could then discover not all routers work, and that your 3 mesh home router system using older routers with open source DDR installed to extend network, conflicts with smokinIt wifi...
You could mess around for an hour or two turning off close extender routers so 3.5d would grab the acceptable new 2.4ghz network from other side of house...
OR...
There could be Good well written directions. You could just turn on The smoker in 1 minute to 250 degrees, and have it be seasoning and usable, while you spent 3 or 4 hours reading the poorly organized guide to figure out your phone app.
Trying to use the wifi app initially, took me 30 min searching for Temp1 probe as it is mentioned as required for programs and app to function, but no diagram shows probe1, not mentioned anywhere else in book, and ports on back are labeled 2 and 3. Nowhere in instructions or setup does it discuss hooking up probes to 2 and 3. Now youre tryung to read 40 pages to see if probe1 is a typo and they mean probe 3. After reading all 40 pages, you are left to assume probe1 must be inside the machine already, hooked up, but then why are there directions telling you that tthe controller won't turn on and work if you don't have probe1 hooked up? Nowhere does it send you to Auber as the controller for more info, or tell you to read auber here. Any videos are apparently under a guy named Larry's youtube, who maybe is just some smoker owner posting vids which is absolutely what it looks like when on youtube searching for info, or maybe he is the owner... who knows, none of that is listed in the user guide, how would anyone know to look for Larry on youtube. All pictures of screens have 00000 overprinted which blocks out most of the actual display, so I'm guessing at what half of the display is. How to go from programming to manual mode is referenced on page 1, but instructions arent until like page 30, and then they are listed as something else, not the "manual mode" referenced earlier but are called "switch between multi step mode and single step mode", and then sub listed as System Config > program mode.
My point in all the above is not to get a suggestion, but to illustrate how poor the directions and writing are. I eventually figured it out, and watched a few Larry vids linked to me. But putting every customer through this dissatisfying process could be avoided with a few hours editing. There is a decent sticky for older models, thus my suggestion to update it to also provide info for newer digital and wifi models.