OnlineSim or ViOTP?

OnlineSim or ViOTP?

viotp or online sim

Nowadays when you register on the website, you need to verify your identity. In most cases, you are asked to provide a phone number, then you receive an SMS with a code and fill it in on the website. However, there is a perfect opportunity to online receive sms and do the same thing. It’s a virtual phone number because it can add value to your online security.

When it comes to virtual phone number providers, there are many names such as: ViOTP, 2nrLine, Textnow, Grasshopper, OnlineSim, Textplus… In this article, let’s also explore 2 quite familiar providers: OnlineSim and ViOTP. Together, we will analyze the advantages and disadvantages of each side to find out which option best suits your needs: OnlineSim or ViOTP.

Let’s find out together now!

What should you know about a virtual phone number?

A virtual phone number is a number linked to an online account with a provider, as opposed to a specific location. It’s sometimes called a softphone or a virtual landline. A virtual number is a phone number that is independent of a phone line or physical device or specific location. 

Old school telephony systems tend to use an analog setup with desk phones, and numbers are linked to local PBX exchanges / phone lines. On the other hand, you can get virtual business phone numbers from a VoIP provider (Voice over Internet Protocol, which is essentially a technology that lets you make virtual phone calls over your data or Wi-Fi – basically any kind of Internet connection) and use those numbers to make and receive calls.

People calling you on a virtual number won’t be able to tell the difference to them, it’ll be as if they’re just calling a regular ol’ telephone number.

Virtual phone numbers have many different benefits. Users can use phone numbers like:

  • Faster, more flexible than traditional phone numbers
  • Easily manage multiple numbers at the same time
  • Customize the number head, choose a beautiful number
  • Cost savings

👉 Read more: What is a temp SMS verification phone number rental service?

Onlinesim – Service for receiving virtual SMS!

OnlineSim provides solutions in the telecommunications market: Receiving messages to virtual numbers for private registration on various sites, services and applications. 70+ countries, more than 1,000,000 virtual numbers. Short and long term phone rental.

Key features:

– Make and receive voice calls

– Mobile proxy: Over 60 million IP addresses

– Receive activation codes

– Use virtual number to receive SMS 

Advantages and disadvantages of OnlineSim


  • Completely online
  • Support short and long term phone rental.
  • 70+ countries 


  • No 24/7 customer support
  • OnlineSim is based in Russia, will be restricted in countries that grant access to the Russian website
  • Some users find the ads annoying
  • High cost

👉 Read more: What is the best virtual phone number provider? Textnow or ViOTP

How to use OnlineSim?

To use OnlineSim, visit the website: and start by creating an account

You’ll need to enter an email address that you have access to, as well as create a password. Remember, as with any service, you’ll want to create a password that is long, and utilizes both upper and lower case letters as well as numbers

Then select the service you want. There are many numbers for you to choose from:

Use it to receive SMS. Then, copy the SMS code and use it as you want.

👉 Read more: 10 Best Virtual Phone Numbers for Business

ViOTP – Unlimited phone numbers for you!

ViOTP is the best online SMS and virtual phone number service with affordable packages and easy-to-use interface. ViOTP offers business rental service with unlimited domestic calls, texting and voicemail. ViOTP provides for you phone numbers to receive SMS OTP verification when you register many services (ex: Google, Facebook, Microsoft…)

With the largest sim store in Asia, ViOTP allows tenants to choose the operator and number to suit their needs. ViOTP is committed to confidentiality of customer information, it’s prestige, trust and transparency. 

Advantages and disadvantages of ViOTP


  • Unlimited number rental
  • Information security
  • Prestige, trust and transparency
  • Flexible and proactive time
  • Low cost
  • Large sim store
  • 24/7 customer support


  • Currently supporting numbers in Vietnam and Romania

Key features:

  • Support 400+ services with many different industry codes
  • Select “rent number” or “rent custom
  • Unlimited number of sims
  • Get OTP code online for business

👉 Read more: The complete guide to ViOTP functions

How to use ViOTP to receive SMS codes?

You just need to visit the website perform the following 3 steps to register and use ViOTP’s services. Let’s start!

Step 1: Register account

  • Click Register to start creating a free account on ViOTP phone number rental system
  • Then fill in the required fields. Provide account name, full name, email, password settings
  • Check if the account name has been used by anyone and is not duplicated.
  • Agree to the Terms and conditions
  • Press the “Sign Up” button to confirm and complete the Form.
  • Congratulations, you have successfully created an account. Let’s enjoy!

Step 2: Deposit money into your account

You can deposit money into account by 2 ways:

  • Recharge your account quickly and conveniently to continue renting sim from ViOTP
  • ViOTP provides 2 ways to top up your account: USDT TRC20 wallet and Payeer

Step 3: Use the SMS online verification service

  • Choose the service you want and start using the temporary sms verification service right away. 3 services provided:
  • With “Rental number”, you only need to choose 2 items: the country and the desired service, and you can immediately rent a sim to get otp. Select Vietnam to use vietnam phone number. So quickly to receive sms now.
  • With “Rent Custom”, you just need to fill in all your needs and press “rent a number”. You can choose the desired and unwanted carrier and subscriber numbers. Easy to have a temp mobile number!

The list of ViOTP sim code rental services is very diverse, meeting most of the needs of users. You can check it in “Supporting Services”

👉 Read more: 4 Benefits of Temp SMS Sim Code Rental Service


 Hope you have a better idea about OnlineSim and ViOTP, it’s time to decide if you need one.

However, we strongly encourage you to experience ViOTP service. Because ViOTP is really the right choice for you. No matter where you live in the world, you can use ViOTP to rent a virtual phone number. The operation is very simple, directly on the website, no need to download the app to the phone. Fast, convenient and reputable!

Visit the ViOTP website right away to log-in your account & get a virtual phone number for your business!


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