Do you really know how much your customers like your product or service? Really? If so, you're probably measuring your Net Promoter Score (NPS), the global standard for measuring customer loyalty.

If you're not familiar with it, NPS is the result of asking your customers a one-question survey: “On a scale of 0-10, how likely are you to recommend us to a friend?” Promoters are people who rate you 9 or 10. Passives are people who give you 7 or 8. Detractors are people who give you 6 or less. Simple equation: NPS = % Promoters – % Detractors. As a business, you want your NPS to be as high as possible. Apple recently scored 47, and Citibank -41. Smart companies employ NPS as a board-level metric.

Ask Nicely is the Auckland-based startup that is leading the world in measuring and managing NPS. They launched in December 2014, and are already taking the market by storm, with thousands of users in over 80 countries. They're growing at 25% month-on-month, with over 90% of this growth coming from the US.

They are the classic well-focused startup – they do only one thing, but they do it extremely well. They can get you up and running and measuring and managing this critical metric in minutes. Their customer list is very diverse, including household names like Seagate, Rackspace, Xero, as well as an NBA franchise and the world's largest network of phone-based psychics. It would appear that even psychics value independent assessments of customer satisfaction.

The idea for Ask Nicely was conceived in a late-night session in a Ponsonby cafe in April 2014 when co-founders Aaron Ward and John Ballinger decided to “do for surveys what Twitter did for blogging”. In true Lean Startup fashion, John built a rough prototype over the next couple of days, and they knew they had a viable business when 11 out of 12 companies they showed it to said they'd pay for the service. From idea to validated MVP in a fortnight – stunning.

For much of the next two years, the company operated out of John's garage in Ponsonby. They are mindfully building an Exponential Organisation (XO), using external resources for as much as possible and focusing on the hard bits where they add the most value. And like an XO, they integrate with a wide range of products that exchange data with systems their customers are already using. Currently, these include Salesforce, Intercom, Slack, Klipfolio, Mailchimp, Mixpanel, Desk.com, Zendesk, Groove, Helpscout, Freshdesk, Shopify, Zapier, and Geckoboard, with a number of others in the pipeline. They see integrations as one of their key growth channels. The other main growth channels are pay-per-click advertising and content marketing. Aaron claims that their cost per acquisition is very low compared to the average customer lifetime value. Organic referrals also play a significant role.

The team has expanded to five people this year, with two sales people based in the US, and another dev in Auckland.

The users clearly love it. Ask Nicely has the highest satisfaction rating for its category on G2Crowd. Their main competitors, Satmetrix and Medallia, are enterprise solutions with price tags that can run into hundreds of thousands of dollars, while Ask Nicely starts at USD 49 per month. Given that they're the only serious tool in their bracket, they're on the way to owning this category.

Over the last two years, they've raised two small seed rounds from ICE Angels, AngelHQ, K1W1, NZVIF, and a few others. Last month, two years to the day after coming up with the idea, Aaron and John returned to the Ponsonby cafe for another late night session, this time plotting their Series A raise. They're preparing to build out their team and accelerate US momentum. If you're a member of an angel club, keep your eyes open for this opportunity when it comes round.

Ahead of the Series A, Ask Nicely are looking for a PHP dev to accelerate delivery of an ambitious product roadmap and architect the platform to perform at massive scale.

Aaron says the big goal is to tackle a meaningful global problem, helping businesses achieve better results by delivering great customer experiences, owning that category, and doing it from New Zealand.

You could say that with Ask Nicely, New Zealand is yet again helping to make the world a happier place.