ZemSim — Last updated: August 2026
Who We Are
ZemSim is a Melbourne-based provider of travel eSIMs. We help Australian travellers and visitors stay connected in more than 60 countries without roaming fees or physical SIM cards.
ZemSim is operated by KIM JOONHEE (ABN 68 968 335 464), located at 135 A'Beckett Street, Melbourne VIC 3000, Australia.
What We Do
We sell digital eSIM data plans. When you buy a plan, we email you a QR code and setup guide within minutes. You scan the code, install the eSIM on your phone, and you're online at your destination — no physical shipping, no SIM tray required.
- Unlimited data plans for 1 to 30 days in 60+ countries
- Instant digital delivery by email after purchase
- Works with eSIM-compatible phones — iPhone XS or newer, most Android 10+ devices
Why Choose ZemSim
- Instant activation — most plans are ready within minutes of purchase
- One eSIM, many countries — regional and global plans available
- No contracts, no hidden fees — the price you see is the price you pay (AUD)
- 24/7 customer care — we respond to every enquiry within 1 business day
Our Commitment
We stand behind every eSIM we sell. If your eSIM fails to install on a compatible device or does not work in the country you purchased it for, contact us within 30 days and we will replace it or issue a full refund.
Contact & Policies
- Email: hello@zemsim.com
- Address: 135 A'Beckett Street, Melbourne VIC 3000, Australia
- Contact page
- Terms of Service
- Shipping Policy
- Refund Policy
- Privacy Policy