Didn’t work
Response from developer
Thanks for giving DogHush a real try, and I'm sorry it didn't help on your walks. Walks are the hardest situation for it. Outdoors, a phone speaker is competing with traffic and wind, and if the phone was in your pocket the tone was muffled before it ever reached him. A dog that's already worked up on leash is also much harder to interrupt than one barking at the window. Two things are worth trying. Switch from the tone to a recorded voice command, for most dogs your own voice cuts through better than a whistle. And start indoors, with the phone in the room, on the barking you get at the door or when you leave. Dogs that respond there often start responding outside later. If it still isn't right for him, you can request a refund through Apple and we'd completely understand. Either way, thank you for taking the time to write this.