2Degrees has a brand new unlimited mobile plan, the only unlimited plan in NZ with free hotspotting.
The more people you have on the plan (Up to 4) The cheaper the plan is per person per month.
Example
4 people group
$40 p/month per person
Unlimited* NZ Data
Unlimited* Calls to NZ & Aussie
Unlimited* Texts to NZ & Aussie
3 people group
$45 p/month per person
Unlimited* NZ Data
Unlimited* Calls to NZ & Aussie
Unlimited* Texts to NZ & Aussie
*Max speeds reduce to 1 Mbps after 40GB/mth per person & hotspotting speeds may be reduced further during periods of network congestion. Fair use policy applies.
Pros: If you use heaps of data and calls then this is probably the cheapest plan you'll get in NZ if you get a group of 4 people for it. Slows down only after 40gb per people and hotspotting is available too. Calls and Text includes Aussie.
Cons: Only one bill. 2Degrees may have limited network in some areas.
https://www.nzherald.co.nz/technology/news/article.cfm?c_id=…
"Once you do hit 40GB, then your speed is throttled to a crummy 1 megabit/s until your next bill "