Stay connected instantly anywhere in Japan

Download the app and choose a data plan that works best for you.

iOS Android
  • No registration, no bank account, no credit card required

  • Data rollover up to 180 days

  • Each recharge extends SIM validity

  • Top-up your data at convenience stores in cash

  • No registration, no bank account, no credit card required
  • Data rollover up to 180 days
  • Each recharge extends SIM validity
  • Top-up your data at convenience stores in cash
  • ¥990

  • ¥1,540

  • ¥2,310

  • ¥3,410

  • ¥4,510

eSIM or Physical SIM – Your Choice!

TOP SIM is available in both eSIM and traditional physical SIM card formats. You’ll get the same great speed and quality either way – the only difference is how you set it up.
With eSIM, there’s no need to insert or swap anything. Just scan a QR code and you’re good to go, all online.
Not sure if your phone supports eSIM? No worries – we’ve got you covered with a physical SIM too.

  • eSIM

    • Get a QR code / activation code on your TOP SIM app.
    • No need to worry about losing or breaking a SIM card
    • Eco-friendly – no plastic, no waste
    Buy eSIM 
  • Physical SIM

    • Get a physical SIM card delivered to you
    • Insert it, set it up, and you're ready to go
    • Works with almost any unlocked phone
    Buy physical SIM 

Activation guide

Ready to activate? Choose the right guide below for your phone and SIM type.

Stay Connected Any Time with Rechargeable SIMs 📱

No registration or documents required.
Pay at any convenience store in Japan!

FOR RESELLERS

Interested in becoming a TOP SIM reseller?

Click the button below to discover the benefits and advantages of joining our reseller network!

Enjoy VoIP calls with "My 050" app

TOP SIM is a data-only SIM. For voice connectivity, explore our My 050 app!
With the My 050 app, you can make affordable calls within Japan and internationally. You can also apply for your own 050 number, allowing you to receive incoming calls directly in the app, along with a range of other benefits.

Learn more by visiting our website

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