You can watch Love Island Australia for free on 9Now if you are in Australia, and on TVNZ+ if you are in New Zealand. 9Now offers all episodes on-demand and live, but requires a free account registration with an Australian postcode. TVNZ+ provides episodes shortly after they air in Australia and only requires a free sign-up.

For viewers outside Australia and New Zealand, using a VPN to access 9Now or TVNZ+ is a recommended solution. Other options may include Hayu (in select regions like Canada, Ireland, and Singapore), or limited seasons on services like CTV (Canada), Netflix (in select countries), and ITVX (UK), though new episodes are first available on 9Now and TVNZ+.

In summary:

• Australia: 9Now (all episodes, free with account)
• New Zealand: TVNZ+ (all episodes, free with account)
• Other countries: VPN access to 9Now/TVNZ+, or check Hayu, ITVX, CTV, or Netflix for past seasons.