Simday: Travel eSIM & Data
Data abroad in 60 seconds
Only for iPhone
Free
iPhone
One-tap eSIM in 200+ countries. Unlimited data plans, included phone number on eligible plans, and 24/7 live human support — ready before your next trip.
Get mobile data in 200+ countries — in 60 seconds. No SIM swap. No roaming charges.
Buy a plan, scan the QR code, and you're online on a local network the moment you land. No airport kiosks. No tiny SIMs. No surprise bill when you get home.
WHAT YOU GET WITH SIMDAY
◆ One-tap activation. Scan the QR, tap install, connect — in 60 seconds.
◆ 190+ countries covered. From Tokyo to Lisbon to São Paulo, buy data that works on local networks the moment you land.
◆ Unlimited data plans. Stream, map, video-call, and post without watching the counter.
◆ Phone number included. Get a number with eligible plans so you can receive calls and texts while abroad.
◆ 24/7 live support. Real humans, not chatbots. Help whenever, wherever.
◆ Plan flexibility. Pay-per-GB, regional bundles, or unlimited — pick what fits your trip.
HOW IT WORKS
1. Open Simday and pick your destination.
2. Choose a plan that fits your trip.
3. Install your eSIM with one tap.
4. Land, toggle on, and you're connected.
WHO SIMDAY IS FOR
- Vacationers who want to skip roaming charges
- Business travelers hopping between countries on one trip
- Digital nomads working from anywhere
- Students studying abroad
- Anyone who's ever hunted for a SIM kiosk at 2 AM
DEVICE COMPATIBILITY
Simday works on eSIM-compatible phones. Not sure if your phone supports eSIM? Tap "Check my device" in the app. It takes 5 seconds.
WHAT'S AN eSIM?
An eSIM is a digital SIM card built into your phone. No physical card to swap. No mailing. No waiting. You download your plan, and your phone connects to a local network wherever you are.
SUPPORT
Questions before you travel? Problems while you're abroad? Our support team answers 24/7 inside the app. Real people, real answers, any time zone.
Download Simday, pick your destination, and get online in 200+ countries before your plane lands.
ABOUT SIMDAY
Simday is developed and operated by Vast Travel LLC.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Vast Travel, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- VAST TRAVEL, MASULIYATI CHEKLANGAN JAMIYATI
- Size
- 39.9 MB
- Category
- Travel
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Vast Travel LLC