Mars Signal
Everyone
info
1+
Downloads
About this app
Mars Signal — Global mobile data, made simple for travelers from China.
Whether you're traveling abroad, studying overseas, working remotely, or on a quick business trip, Mars Signal gets you online the moment you land. No SIM swap, no VPN headache, no shocking roaming bills.
Three Formats, One App
- eSIM: scan QR, get data in 5 minutes. 200+ countries and regions.
- Physical SIM: classic format, mainland China express delivery.
- SeSIM Card: a single physical card holding up to 15 eSIMs — perfect for multi-country trips.
Truly Works From China
- Compatible with China Mobile, China Unicom and China Telecom signaling
- Product pages clearly show coverage country, carrier, 4G/5G support and local speed
- Top up instantly when your data runs low — no forced subscription
Pay The Way You Already Pay
- WeChat Pay, Alipay, mainland credit cards, Apple Pay
- Manage balance, gift cards, coupons and referral rewards in one tab
- Ticket system and email support — replies within 24 hours
Privacy and Security
- HTTPS/TLS end-to-end encryption
- Sensitive fields (phone, ICCID) masked in the UI
- Self-service account deletion with 30-day cooling-off period
Made For
- Business travelers visiting clients abroad
- Students studying or interning overseas
- Digital nomads and freelancers
- Cross-border e-commerce teams and remote workers
- Independent travelers and backpackers
Mars Signal — connecting you to the world, signal by signal.
Whether you're traveling abroad, studying overseas, working remotely, or on a quick business trip, Mars Signal gets you online the moment you land. No SIM swap, no VPN headache, no shocking roaming bills.
Three Formats, One App
- eSIM: scan QR, get data in 5 minutes. 200+ countries and regions.
- Physical SIM: classic format, mainland China express delivery.
- SeSIM Card: a single physical card holding up to 15 eSIMs — perfect for multi-country trips.
Truly Works From China
- Compatible with China Mobile, China Unicom and China Telecom signaling
- Product pages clearly show coverage country, carrier, 4G/5G support and local speed
- Top up instantly when your data runs low — no forced subscription
Pay The Way You Already Pay
- WeChat Pay, Alipay, mainland credit cards, Apple Pay
- Manage balance, gift cards, coupons and referral rewards in one tab
- Ticket system and email support — replies within 24 hours
Privacy and Security
- HTTPS/TLS end-to-end encryption
- Sensitive fields (phone, ICCID) masked in the UI
- Self-service account deletion with 30-day cooling-off period
Made For
- Business travelers visiting clients abroad
- Students studying or interning overseas
- Digital nomads and freelancers
- Cross-border e-commerce teams and remote workers
- Independent travelers and backpackers
Mars Signal — connecting you to the world, signal by signal.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
What’s new
What's new in 3.0.1
- Refreshed the app icon with cleaner padding so it sits beautifully on your home screen
- Improved overall stability and minor visual polish across the app
Mars Signal — global eSIM, physical SIM and SeSIM data that works from China to anywhere you travel.
- Refreshed the app icon with cleaner padding so it sits beautifully on your home screen
- Improved overall stability and minor visual polish across the app
Mars Signal — global eSIM, physical SIM and SeSIM data that works from China to anywhere you travel.
App support
About the developer
ONE TREE HILL TECH LIMITED
leo.liu@onetreehill.co.nz
244 Balmoral Road
Sandringham
Auckland 1025
New Zealand
+64 27 366 9858
