Men are invited to fill out a form, and Jan and Hannah sort through the applicants together, contacting whoever Jan is interested in.
In the first week, Jan received 50 applicants from all over New Zealand, as well as Australia and the UK.
Joanna would recommend the app, but cautions: "I would say keep your expectations kind of low."What's missing, she believes, is the chemistry that takes place when you meet someone sans screens.
"When you meet somebody in person, it's what makes you want to see that person again.
Jan declined to be interviewed, but Hannah says her mum had tried online dating in the past and found it too arduous.
And while she'd never declared that she was lonely or wanted to find someone, Hannah sensed she'd like to be in a relationship.
"I also like the fact you're not seeing everybody that's seeing you.
I hate that thing about online dating – notifications that say 'these people are looking at you.' I like that you match if they think the same thing, or if they like you." TYPES TO AVOIDYou quickly learn the types to avoid, says Joanna: men whose photos feature a gun, a motorbike, or their ex-partner."I think it's harmless, and it's safe, and for people in my age bracket, over 50, I think it's worthwhile." Joanna (not her real name) returned to New Zealand from a stint in London 10 years ago to find not a dating pool, but a dating puddle."There, it seemed you'd meet a lot more eligible people in your age group.Aitcheson recently started using the app again after a nine-month relationship – with a woman he met on Tinder – came to an end."I think it's a modern way to meet people," he says.READ MORE: * Confessions of a 40-something Tinder user * 16 modern-day dating terms to know * Halal speed dating is 'the anti-Tinder' * Modern-day relationship rules to ignore * The ups and downs of mid-life dating "We have a small group of early stage adopters in New Zealand already, and we'd love to see more." Last month, 60-year-old Auckland teacher Jan Habgood made headlines around the world when her daughters set up a website to help her search for a partner.