Wylie's text system gives customers a way of telling a company exactly how they feel without confrontation.
"They are getting single-minded insights immediately after the customer has the experience," Wylie said.
Electronics chain Noel Leeming launched Customer Radar's text service in 10 stores four weeks ago and has received more than 1000 messages.
Chief executive John Journee said managers were now able to resolve customer-satisfaction issues that they would not have known existed previously.
He said a common text was about warranty repairs being declined because the customer had broken the product.
The software allowed the company to respond. "People feel fobbed off or like they haven't been given a fair hearing. It brings in a sense of justice," Journee said.
Other companies using Customer Radar include Muffin Break and Radius Pharmacy.
ONE TEXT FIXES TOILET TROUBLES
Frequent flyer Christina Harvey, 56, wouldn't dream of marching up to the desk at Auckland Airport and telling them what she thought of the ladies' loos - but the truth was, it had been bothering her for years.
"It's not a difficult thing to fix. The toilet seat in the cubicle I like to use was quite scratched," she said.
Then Auckland Airport launched a text-feedback programme and posted signs on the back of cubicle doors to encourage people to speak their minds.
And that's exactly what Harvey did. "I told them the bathrooms were nice and clean but the toilet seats really needed replacing. I travel between New Plymouth and Auckland a lot and it had been bothering me for years."
The next time she passed through the airport, Harvey was delighted to see sparkling new seats in every cubicle. "The fact they paid attention and did something about it was fantastic. I called them up and told them I think the programme is amazing, you can give really honest feedback. When it's face to face they often just think you're being unreasonable."