FAQs

2nd SIM is simple to use, and we make regular updates and innovations. But if you've any questions or issues at all, get in touch or find lots of answers below.

2ndSIM is an OTT service that offers extra phone numbers, free calls, and messages on top of your usual number. Get low-cost rates, call privately, and connect internationally without an additional SIM card needed. 2ndSIM requires mobile data or Wi-Fi to be used. Calls/messages between 2ndSIM users are always 100% free and 100% unlimited.

Save your money on international/local calls, keep your personal numbers private, and have extra contact details for work, corporate adverts, or even online dating.

Key features:
  • Simple to use
  • Keep personal numbers private
  • 100 % free calls and chats (2ndSIM to 2ndSIM only)
  • Low-cost calls & SMS services internationally
  • Customise personal profiles & voicemail
  • Incoming caller ID
  • Live availability updates

Yes, you do. Mobile data or Wi-Fi is needed for calls, SMS, and to validate user details.

No. Calls require the internet for validation, verification, and connection. All calls and messages received are utilising an internet connection.

Yes, as long as you are connected to the internet. 2ndSIM voicemail is available when you are offline, meaning you won’t ever miss an important message.

Please make sure to enable notifications on all of your devices:

For iOS: go to Settings > 2ndSIM > Notifications > click - Allow

For Android: go to Settings > Notifications > 2ndSIM > toggle - On

The app is 100% free. Calls and messages to non 2ndSIM users might incur a fee. Please check these rates more specifically in the app.

There are no connection fees whatsoever. Calls are charged per 60 seconds.

100%, secure calls between 2ndSIM users are fully encrypted. Choose 2ndSIM for secure calls and safe messages, ensuring privacy at all times without compromise.

Simply invite your friends to 2ndSIM to exchange free calls/messages. Once they join 2ndSIM, you will get a notification, and they’ll display as "free" in your contact list. It’s as simple as that!

All Android (4.0+) and iOS (8+) devices can support the 2ndSIM application.

Yes, certainly. iPads can also use 2ndSIM to make/receive calls as well as to send private messages and use SMS.

To verify and validate your account with an activation code. 2ndSIM users can make calls to each other 100% free, no matter where you are in the world; with 2ndSIM, you can always stay connected.

That’s okay, just simply contact [email protected] with your phone number, and we will get right back to you.

Notifications deliver your calls and messages. Turn them on for proper functionality and to ensure you don’t miss a message. We will only notify you when someone is trying to contact you.

No, 2ndSIM uses your mobile number for validation, but it is not a replacement for your SIM card.

For iOS: go to Settings > 2ndSIM > Notifications > select - Allow

For Android: go to Settings > Sound & Notifications > 2ndSIM > select - On

Wi-Fi is preferred, but mobile data also works fine too. Check with your network provider for specific data charges.

Yes, but it’s best to use Wi-Fi to avoid any unwanted charges.

Either an Android or an iOS device with full internet access.

Enter your phone number to receive a validation code to get back in. If the issues persist, contact our support team; we’ll be able to help you right away - [email protected]

Firstly, open the app and select your desired contact or you can dial a specific number if it isn’t saved yet.

Yes, you can set up multiple numbers for different uses (business calls, client meetings, online dating, etc.).

Please ensure you're connected to the internet as well as being connected to other 2ndSIM users for free calls. If you are trying to make a call to a non 2ndSIM user please check you have enough credit loaded.

Ensure contacts call your correct 2ndSIM number(s). You can share your number via the application, and invite friends from there too.

Enable access to your microphone for 2ndSIM; under your device’s settings.

  • Free Calls: Between 2ndSIM users, via the internet.
  • Wi-Fi/Data Calls:Via internet to the phone network.
  • Local Access: Uses local GSM minutes in your home country.
  • Callback:2ndSIM calls you back and connects the call.

No, calling emergency numbers is not permitted from this service currently.

Premium numbers are blocked for security, but some non-geographic numbers are allowed. Please contact us for more information.

No, it’s an (OTT), an over-the-top service that requires a mobile provider’s number for validation and verification.

Dial simply with an international prefix (e.g., +44 for the UK, +34 for SPAIN, +1 for the US)

Ensure you have full internet connectivity, are connected to your free contacts, and/or have credit.

You can easily message any other 2ndSIM users for free.

You can send a variety of text and photo messages to other 2ndSIM users in seconds.

SMS via 2ndSIM is cheaper, especially internationally. Having access to this service is especially handy when abroad, or when contacting friends/ family/ associates overseas.

To send an SMS to any phone costs 3.9p/5c.This is much cheaper than other providers, and you can avoid paying hefty international fees.

Check the recipient’s number and ensure you're online, or that you have enough credit loaded.

The app is 100% free, calls to non-2ndSIM users vary; check rates inside the app. You can download it right here FREE!

Calls are billed per 60 seconds.

Check the rates page inside the app or here on our website.

You can buy credit via the app or right here on our website.

Yes, from within the app. Help friends and family stay connected via 2ndSIM and top up their accounts simply from the comfort of your home. A little often goes a long way.

Charges may apply for data usage or national calls via Local Access only. You will need to double check with your provider.

Payments via iTunes have Apple’s commission added. Use our website for the very best rates and to save your money.

You can pay by using your credit/debit card, as well as with PayPal, or Apple in-app purchases.

Double check your spam folder, and contact PayPal as well as us. We can help to resolve the matter, just make sure to check your junk folders first!

An additional mobile number for use on your device, keeping your personal number private.This is handy for doing international business and for a number of reasons. Stay connected without compromising your privacy, only with 2ndSIM.

You can use it for multiple purposes. For work, dating, online selling, etc. Set your availability and separate voicemails for each number.

Not at all, 2ndSIM is affordable; to view costs per number registered, check in the app.

View prices and purchase a new number from the app.

Yes, once you have shared your chosen number with your contacts.

Yes, of course. You can easily make low-cost calls internationally - without needing to worry about cutting your time short. Prices per minute are exceptionally affordable, 2ndSIM’s deals are currently some of the best on the market.

Yes, easily turn your tablet into a phone for work or for leisure, it’s as simple as that.

It will be removed, any expired numbers can no longer be retrieved.

Yes, the app displays expiry dates.

In most cases it only takes a moment, however in some cases it might be up to a few hours.

2ndSIM App is available on both Google Play and the App Store. You can download it right here .

Yes, some features may differ depending on the country. Contact us for more information, or if you have any queries whatsoever, we would be happy to help.

Yes, you certainly can do so, but not for concurrent calls from multiple devices at one time.

If the problem persists, check your device’s memory, internet connection, and settings. Still no luck? Then contact us as [email protected] and we will be happy to support you.

Discover the freedom of 2nd SIM now