Mighty Mobile is offering all of their 365 plans as buy one get one free.
Works out to be ~$16.65 per month for 10mbps, ~$20.79 per month for 50mbps and ~$33.29 per month for max
| Fast Plan | Faster Plan | Fastest Plan |
|---|---|---|
| $399/year | $499/year | $799/year |
| $16.62 per person per month | $20.79 per person per month | $33.29 per person per month |
| Unlimited Data up to 10Mbps*1 | Unlimited Data up to 50Mbps* | Unlimited MAX SPEED DATA* |
| Unlimited Standard Calls & TXTs (NZ & AU)^2 | Unlimited Standard Calls & TXTs (NZ & AU)^ | Unlimited Standard Calls & TXTs (NZ & AU)^ |
| Good for 720p, HD | Good for 1080p, FHD | Good for 4K, Ultra HD |
| Hotspot included (at no extra cost) | Hotspot included (at no extra cost) | Hotspot included (at no extra cost) |
Terms:
October 2025 Buy One Get One FREE Offer:
Offer available to new customers only (defined as individuals who have not previously activated a Mighty Mobile SIM or plan). Offer valid until 16 November 2025. New plans are set to auto-renew by default, you can manage or cancel your plan at any time via your account. The free 365 plan applies for the first 12 months only. Subsequent renewals will be charged at the then-current standard 365 rate (see mightymobile.co.nz/#Price-Overview). SIM must be activated within 3 months from purchase, or the promotional offer may be forfeited.
Credit @Wakrak for the table above
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Maximum data speeds, Fair use and Mobile terms apply. Actual speeds you experience may vary due to several factors, including your device capabilities, location, network congestion, and network coverage. Please refer to our terms and conditions for further details. ↩
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^Unlimited voice calls and TXTs to standard NZ and AUS numbers (e.g. no short codes or MMS/PXT). Personal mobile phone use only. Mobile terms apply. ↩


That is the cheapest the fast plan has been at for over a year, I think.
I am on the 50% off monthly faster plan and have 3 or 4 months left of the initial 12 months to renew or move.