Every review, in full
Each device below was used on the same dog, on the same triggers, for the same length of time. These are the long versions of the notes behind the ranking.
Rank #1 · score 9.9
BarxBuddy Ultrasonic Dog Trainer review: the one that finally worked on Roscoe
BarxBuddy is a pocket-sized ultrasonic interrupter. You press a button, your dog hears a high-frequency tone you can't, and the barking breaks long enough for you to give a command. It is not magic and it is not a training programme on its own — but of every device I tried, it is the one that reliably bought me that half-second of attention.
Rank #2 · score 9.0
Doggie Don't Anti Barking Device review: loud, honest, and audible to you too
The Doggie Don't is the most reviewed hand-held corrector I tested on Amazon. It uses an audible tone rather than ultrasonic, which makes it easy to confirm it fired — and impossible to use discreetly.
Rank #3 · score 8.5
PetGentle ultrasonic dog trainer review: the cheap way to find out if ultrasonic works
A low-cost ultrasonic deterrent with an LED light. It does interrupt barking, but the effect faded fastest of every ultrasonic device I tried, which matches its middling rating.
Rank #4 · score 7.5
MODUS bark control device review: three modes, short reach
The MODUS gets the important feature right — adjustable modes — but its effective range is short enough that you have to be almost within lead distance for it to matter.
Rank #5 · score 7.0
Bark Begone review: heavy marketing, thin results
Bark Begone is the most heavily marketed device here and the lowest rated. It works some of the time, on some dogs, and costs roughly what the winner does.