# Roamify Help Center > Guides for installing, activating and troubleshooting a Roamify travel eSIM, and for managing orders, payments and your account. Last updated: 2026-10-08. Help Center: https://www.getroamify.com/en/help/ ## About Roamify - [Can I Buy an eSIM for Multiple Countries? Yes — Here's How](https://www.getroamify.com/en/help/about-roamify/can-i-buy-an-esim-for-multiple-countries/): Roamify offers several multi-country cards. These are perfect if you travel to several different countries on one trip. - [Do eSIMs come with a number to make or receive calls?](https://www.getroamify.com/en/help/about-roamify/do-esims-come-with-a-number-to-make-or-receive-calls/): Yes, eSIMs come with a dedicated number, allowing you to make and receive calls, just like with traditional SIM cards, depending on your carrier and plan. - [How many eSIMs can I install and what are the benefits?](https://www.getroamify.com/en/help/about-roamify/how-many-esims-can-i-install-and-what-are-the-benefits/): Because eSIMs work entirely digitally, there's no physical limit, like a SIM tray, to how many plans you can install on your device... - [What happens if I use up my data or exhaust the days of validity?](https://www.getroamify.com/en/help/about-roamify/what-happens-if-i-use-up-my-data-or-exhaust-the-days-of-validity/): If you use up your data or the validity period expires, you may need to purchase a new plan or renew your eSIM to continue using mobile services. ## Device Compatibility - [Can I Use Third-Party VoIP Apps with My Roamify eSIM?](https://www.getroamify.com/en/help/compatibility/can-i-use-third-party-apps-for-voip-calls/): Yes, you can use VoIP apps like WhatsApp, FaceTime, and Skype with your Roamify eSIM. Learn which apps are supported and how much data they consume. - [How do I check if my Android device supports eSIM?](https://www.getroamify.com/en/help/compatibility/how-do-i-check-if-my-android-device-supports-esim/): Whether a device is eSIM-compatible depends on whether the manufacturer includes an eSIM in their devices... - [eSIM Supported Phones list](https://www.getroamify.com/en/help/compatibility/esim-supported-phones-list/): If you want to know if your mobile is compatible with eSIM, or buy one that is, here is an updated list. - [Is my phone unlocked and able to use eSIMs?](https://www.getroamify.com/en/help/compatibility/is-my-phone-unlocked-and-able-to-use-esims/): To use an eSIM, your phone must be unlocked. Check your device settings or contact your carrier to confirm if it's unlocked and ready for eSIM activation. - [How do I check if my iPhone supports eSIM?](https://www.getroamify.com/en/help/compatibility/how-do-i-check-if-my-iphone-supports-esim/): Apple’s first eSIM compatible Iphones were the Iphone XS, XS Max and XR, which were released in 2018. If you have a model that was released after 2018, your Iphone is most likely eSIM compatible... - [How do I check if my iPhone is both eSIM compatible and carrier unlocked?](https://www.getroamify.com/en/help/compatibility/how-do-i-check-if-my-iphone-is-both-esim-compatible-and-carrier-unlocked/): 1. Open the Settings app, then TAP General, then TAP About 2. Scroll down to the Carrier Lock section 3. If your device is unlocked it will show “No SIM restrictions” 4. Scroll down to Available SIM/Digital SIM, if your Iphone supports eSIM, you will see a 15-digit IMEI number.. ## Self Serve Guide - [For Samsung: How to fix a Roamify eSIM that isn't working](https://www.getroamify.com/en/help/self-serve-guide/my-roamify-esim-is-not-working-what-should-i-do-samsung/): Fix Roamify eSIM on Samsung - [How to Fix a Roamify eSIM Not Working on Android](https://www.getroamify.com/en/help/self-serve-guide/for-android-how-to-fix-a-roamify-esim-that-isn-t-working/): Step-by-step guide to fix a Roamify eSIM not working on Android. Covers activation, data roaming, APN settings, and network resets for all Android devices. - [For IOS: How to fix a Roamify eSIM that isn't working](https://www.getroamify.com/en/help/self-serve-guide/my-roamify-esim-is-not-working-what-should-i-do-ios/): How to fix Roamify eSIM IOS - [Why am I seeing the error 'Invalid QR code'?](https://www.getroamify.com/en/help/self-serve-guide/why-am-i-seeing-the-error-invalid-qr-code/): error 'Invalid QR code'? - [How to setup my Laos eSIM?](https://www.getroamify.com/en/help/self-serve-guide/how-to-setup-my-loas-esim/): Setting up roamify loas eSIM ## Troubleshooting - [How do you delete an eSIM from an iPhone?](https://www.getroamify.com/en/help/troubleshooting/how-do-you-delete-an-esim-from-an-iphone/): To delete an eSIM from your iPhone, go to Settings > Cellular > Select your eSIM plan, and tap "Remove Cellular Plan" to delete it from your device. - [My QR code isn’t working, what should I do?](https://www.getroamify.com/en/help/troubleshooting/my-qr-code-isn-t-working-what-should-i-do/): If you're having difficulty scanning your QR code, we've made a checklist to help you figure out the issue... - [Deleted eSIM Not Going Away? How to Completely Remove It from iPhone](https://www.getroamify.com/en/help/troubleshooting/deleted-esim-does-not-go-away-how-to-completely-delete-it-from-iphone/): Deleted eSIM shows update contacts, how i can remove it completely? - [How do I request Roamify to delete my data?](https://www.getroamify.com/en/help/troubleshooting/how-do-i-request-roamify-to-delete-my-data/): How to request Roamify to clean up my data usage? ## Using and Installing an eSIM - [How does dual SIM work?](https://www.getroamify.com/en/help/using-an-esim/how-does-dual-sim-work/): Dual SIM allows you to use two SIM cards on a single device, enabling separate lines for calls, texts, and data. It works with both physical SIM and eSIM technology. - [How to activate Roamify's European Data + Calling plan](https://www.getroamify.com/en/help/using-an-esim/how-to-activate-roamify-s-data-calling-plan-for-european-countries/): Most of Roamify's plans only require users to install and turn on their eSIM. However, some plans require an extra step or two. Specifically, Roamify's European Data + Calling plan. - [How to install and activate an eSIM on the Huawei?](https://www.getroamify.com/en/help/using-an-esim/how-to-install-and-activate-an-esim-on-the-huawei/): To install and activate an eSIM on a Huawei device, follow the steps provided in your carrier's instructions, ensuring your phone supports eSIM functionality. - [How to install eSIM on the Samsung Galaxy S22 device?](https://www.getroamify.com/en/help/using-an-esim/how-to-install-esim-on-the-galaxy-s22-device/): Install eSIM on Samsung S22 device - [How can I check my current data usage?](https://www.getroamify.com/en/help/using-an-esim/how-can-i-check-my-current-data-usage/): Learn how to check your current data usage on your eSIM to monitor your consumption and avoid exceeding your data limits with Roamify. - [How do I set up my eSIM?](https://www.getroamify.com/en/help/using-an-esim/how-do-i-set-up-my-esim/): To set up your eSIM, simply follow the instructions provided with your activation QR code. Scan the code through your device's settings to complete the process. - [Installing on an Samsung device](https://www.getroamify.com/en/help/using-an-esim/installing-on-an-samsung-device/): How to install eSIM on Samsung device - [What is eUICC and how does it work?](https://www.getroamify.com/en/help/using-an-esim/what-is-euicc-and-how-does-it-work/): eUICC (Embedded Universal Integrated Circuit Card) is a technology that enables remote provisioning and management of eSIMs, offering flexibility for mobile device connectivity. - [How to activate Roamify's Africa eSIM](https://www.getroamify.com/en/help/using-an-esim/how-to-activate-roamify-s-africa-esim/): Roamify Africa eSIM - [What are the two main ways to install a Roamify eSIM?](https://www.getroamify.com/en/help/using-an-esim/what-are-the-three-main-ways-to-install-a-roamify-esim/): Downloading and installing an embedded SIM Card isn't as complicated as it might seem. You can choose from one of the two methods: - [Why am I receiving text messages on my eSIM?](https://www.getroamify.com/en/help/using-an-esim/why-am-i-receiving-text-messages-on-my-esim/): Receiving text messages on your eSIM could be due to carrier settings, network configurations, or the activation of services linked to your eSIM plan. - [What is iSIM and how does it work?](https://www.getroamify.com/en/help/using-an-esim/what-is-isim-and-how-does-it-work/): iSIM (Integrated SIM) is a new technology that integrates the SIM functionality directly into a device’s main processor, eliminating the need for a physical SIM card. - [How do I install a Roamify eSIM manually on my Samsung Galaxy device?](https://www.getroamify.com/en/help/using-an-esim/how-do-i-install-a-roamify-esim-manually-on-my-samsung-galaxy-device/): To install a Roamify eSIM manually on your Samsung Galaxy, go to Settings, select "Mobile Network," then "Add Mobile Plan," and enter the provided eSIM details. - [Installing on an IOS device](https://www.getroamify.com/en/help/using-an-esim/installing-on-an-ios-device/): There are two main methods to install a Roamify eSIM on an IOS device. The QR code method and the Manual method. We always recommend you use the QR code method as it is the most straightforward... - [What is an international data plan?](https://www.getroamify.com/en/help/using-an-esim/what-is-an-international-data-plan/): An international data plan allows you to use mobile data while traveling abroad, ensuring you stay connected without excessive roaming charges. - [How to activate Roamify's Japan Unlimited Data Plan for Android](https://www.getroamify.com/en/help/using-an-esim/how-to-activate-roamify-s-japan-unlimited-data-plan-for-android/): Roamify Android eSIM install instruction for Japan unlimited data plan - [When does my eSIM data plan start?](https://www.getroamify.com/en/help/using-an-esim/when-does-my-esim-data-plan-start/): Your Roamify eSIM data plan starts as soon as you activate it, allowing you to begin using your data immediately, based on your selected plan's start date. - [My QR code is not working. What should I do?](https://www.getroamify.com/en/help/using-an-esim/my-qr-code-is-not-working-what-should-i-do/): If your QR code isn't working, ensure you're scanning the correct code for your eSIM. Try restarting your device or contact support for further troubleshooting. - [Installing on an Android device](https://www.getroamify.com/en/help/using-an-esim/installing-on-an-android-device/): There are two main methods to install a Roamify eSIM on an Android device. The QR code method and the Manual method. We always recommend you use the QR code method as it is the most straightforward... - [APN Configuration for Roamify eSIMs: Step-by-Step Setup Guide](https://www.getroamify.com/en/help/using-an-esim/apn-configuration-for-roamify-esims/): Learn how to configure the APN settings for your Roamify eSIM to ensure optimal network connectivity and seamless data usage while traveling. ## More - [Travel eSIM FAQ](https://www.getroamify.com/faq.md) - [Contact support](https://www.getroamify.com/en/contact/)