u/gambrinus_248

Meta is pushing WA towards wider business use. And with a fair reason: it doesn't make money from the channel otherwise, so it's allowing businesses to send bulk messages. Also, WA has more than 3 billion monthly active users and is the dominant messaging app in Europe and Latin America.

But here's the thing, WA isn't a universal messaging channel like sms. If you send A2P messages, in some countries you'd be able to reach 80% of your audience, but in others maybe only 15-20%. That's why i think RCS will quite soon become a good alternative. They both support rich content and have similar features. However, only RCS messages will arrive in the smartphone's native message inbox. RCS expected user base by the end of 2026 is projected to reach 3.8 billion. So, reach is quite similar to WA.

The largest blocker for RCS adoption now is that the rollout hasn't been universal. Different countries and telcos have different setups. That's what makes using RCS difficult for now.

Share if you have more info on this.

A case study from WhatsApp with Air France who have been using WA for marketing, utility, auth. Pretty much all messaging use cases. And the numbers are actually pretty impressive:

*4.5X higher click-through rate for best offer newsletter messages on WhatsApp compared to emails
*85% of all customer care conversations on social took place on WhatsApp
*10 million utility messages sent (WhatsApp Manager, April 8, 2024–April 8, 2025)
*More than 3 million authentication messages sent (WhatsApp Manager, April 8, 2024–April 8, 2025)

There is no way of verifying these numbers, but it paints a good picture of where messaging might be heading.

Meta is pushing WA hard, but in reality rcs and imessage can pretty much deliver the same result.

Stop asking for the best SMS tool. There isn't one. Here's why.

If I try to find the best tool, I mostly get suggested Twilio. Is it objectively the best for all sms use cases? No. But it's the largest and most well known. Twilio used to be a dev tool, but now prices are too high and good luck getting any support from them.
Or Klaviyo. It's better known for email and its automations. If you already live in Klaviyo you can stick to it for sms too. But if you send tens of thousands of otps a month, you'll be paying a premium because the tool isn't meant for this kind of high volume usage.

So, next time instead of asking for a vague best tool for sending sms, your post should include this:

*what's your business
*what type of message you want to send (otp, auth, marketing)
*your current tech stack
*projected sms volume
*where do you want to send sms to

You'll start getting much better suggestions.

Hi There
Have anybody integrated EMAIL/SMS/Whatsapp messaging in their SaaS product. Is that free?
I was building a SaaS product for my own and need to integrate that to my app