Tunz: eSIM & Travel Data App

DT One Germany

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About this app

Travel should feel effortless, not interrupted by SIM card swaps, expensive roaming, or unstable connections. With Tunz, staying online across borders becomes simple, reliable & fully in your control.

With coverage across 150 countries, you can rely on flexible eSIM data plans & seamless eSIM mobile data connectivity wherever you go. So whether you're navigating a new city, taking calls abroad, or sharing moments in real-time, Tunz gives you smarter eSIM plans to roam globally.

Why Choose Tunz?
Tunz is built for modern travelers who expect seamless connectivity. Instead of relying on physical SIM cards, Tunz offers a fully digital experience powered by eSIMs.

With Tunz, you get a complete global eSIM experience, supported by features that make travel connectivity seamless:

📲You can instantly activate a global eSIM in minutes
🌐There’s no need for a physical SIM card for travel
🌍Access fast and stable eSIM mobile data across countries
📡You can switch between networks with a digital SIM card
💳 You can use prepaid data plans to avoid contracts or commitments
💰 Pay flexibly using Apple Pay, PayPal, or card with added benefits
🧾 Get transparent pricing with no hidden fees

Reliable Data, Wherever You Go
Unstable networks & inconsistent speeds can ruin your experience abroad. Tunz ensures smooth connectivity with optimized international data access designed for every kind of traveler, so you can choose an eSIM data plan that fits your destination and usage.

With Tunz, you get:
📶Access to high-speed international data across multiple countries
🌐You can choose from tailored data plans based on your needs
📡Stay connected with optimized international roaming data



Affordable Plans That Actually Make Sense
Staying connected abroad shouldn’t mean dealing with unclear roaming data plans, pricing or rigid plans that don’t match how you actually use data. Tunz removes that confusion with simple & flexible data roaming pricing built for travelers.

With Tunz you only pay for what you need! nothing extra.

💰You get affordable travel data without hidden costs
🔄 Flexible roaming data plan options for short or long trips
✅Transparent pricing on every global data plan

How does Tunz work?
You don’t need to visit a store, swap SIM cards, or wait for activation. Everything happens directly on your phone: quick, simple, & predictable.

With Tunz, getting connected follows a simple flow:

- First, choose an eSIM data plan based on where you're traveling
- Then, buy eSIM online directly through the app
- Activate your eSIM instantly & get set up within minutes
- Your device automatically connects using eSIM data roaming
- As you travel, you can switch or manage different eSIMs plans anytime

Once it’s active, it just runs in the background, keeping your international data stable without extra effort.

Built for Every Kind of Global Traveler
Tunz is designed to adapt to different travel needs, without forcing you into one rigid plan.
With Tunz, you stay connected across different travel moments:

🎓 International students studying abroad can stay connected with family through reliable international data, without worrying about local SIM changes.
💼 On work trips, rely on stable eSIM mobile data for meetings, navigation, & communication, so nothing interrupts your schedule.
🧳 Frequent travelers can move between countries with one flexible eSIM international setup & a reliable eSIM for travel that works wherever you go.

Built for How You Travel Today
Tunz brings together everything from data eSIM solutions to scalable data roaming & flexible data plans, into one seamless experience. So whether you're planning ahead or need instant access, Tunz ensures you're always connected without friction.

Contact us
Reach out to us or visit our website app.tunz.io to learn more.

Skip the traditional roaming limitations & download Tunz today!

Ratings and reviews

May be the best e-SIM option for traveling. The ability to sell back your unused credit, use it in many countries, and for credit to last a whole year is a game changer compared to standard providers. The Dent concept is genius and I really hope it continues to do well - because it's great for us customers. First time users, note: it is very helpful to switch on your Dent eSIM before you leave home.

works well and like the ability to select a local data dropoff for whichever country you are in

For example, the country list in the app includes Pakistan and Vietnam, but Dent doesn't actually work in these countries. Why are you misleading people like this? It's dishonest and causes users to waste money on data they can't even use.

What’s new

Bug fixes, better performance, smoother eSIM setup. Install your travel data plan in seconds. 150 countries, no roaming charges.