WhatsApp OTP VS SMS OTP
WhatsApp OTP Is Faster, And More Reliable
WhatsApp OTP is a great alternative to SMS OTP. It's safer and more reliable, and you can use it to sign in on multiple devices at once.
SMS OTP is still a popular way for apps to verify your identity. But WhatsApp has now made it easier for developers to integrate the WhatsApp for Business API into their apps. This means you can get an automated confirmation message on your phone when someone signs up for your app through WhatsApp Business.
WhatsApp OTP is faster because it uses the native messaging app on your device instead of sending an SMS message through your carrier's system. It's also much more reliable because there's no chance of an issue with your carrier's network or switching off your phone's data connection while receiving the SMS confirmation code.
WhatsApp OTP Is Cheaper Than SMS OTP
WhatsApp's OTP service is cheaper than SMS-based OTP services. Although WhatsApp API charges a nominal fee for setting up the API server, it's still cheaper than SMS OTPs.
The cost of sending an SMS varies from country to country and network to network. For example, in India, an SMS costs Rs 1 per 15 characters. So, sending an SMS with just 20 characters (about one word) will cost you Rs 2.5. Now let's assume that you have a large user database and every day your users send about 100 OTP messages. This will cost you about Rs 250 per day. And you will have to pay about Rs 91,250 a year. But that's not all; you'll also have to pay more if the message is sent at night or on a national holiday.
Now let's compare this with WhatsApp: The WhatsApp API server charges about Rs 400 per month. You will get an unlimited amount of credit. If your users send 100 messages per day and use the feature for one year, then you will only pay Rs 4,800 per year — which is much lower than what you'd spend on sending with SMS.
The Drawbacks Of Using WhatsApp OTP
WhatsApp OTP is a unique way to verify your identity and protect your account from being hacked. It is a six-digit code that is generated by the app. The WhatsApp OTP is sent to the user’s mobile number, which can then be used to verify the identity of the user.
The drawback of using WhatsApp OTP is that it can be compromised by someone who knows how to hack WhatsApp. This means that if someone knows how to hack WhatsApp and has access to your mobile number, then they can get into your account and send fake messages from your account.
Another drawback of using WhatsApp OTP is that it requires you to give out your mobile number whenever you want to verify your identity on an app or website. This may not seem like a big deal, but it can be pretty annoying having to give out your phone number multiple times each day.
Also, you need to be connected to the Internet every time. If your connection is cut off, you will not be able to send the OTP messages.
Get Started With WhatsApp API OTP
Getting started to use WhatsApp API OTP service can be troublesome because you will have to host the API server and also provide a mobile phone for the sender. Hosting the server alone with a domain and SSL setup can cost you about USD 60 - 100 a year. This can be quite costly, considering you will have to maintain the server. One of the easiest ways is to use OTP Hub. It is simple, fast, and reliable. The setup will take only minutes, and the documentation is pretty clear and simple. It cost only USD 2 / month. This is cheaper than creating and hosting your own server.