# Why people use WhatsApp instead of texting

> WhatsApp replaced texting because it was free across borders when SMS was not, and because it did things SMS could not: proper group chats, photos and video that arrive intact, voice notes, calls, and end-to-end encryption. SMS still wins on one thing that matters — it works with no internet connection at all.

Source: https://vobo.online/whatsapp-vs-texting
Updated: 2026-08-29

## Key takeaways

- Cost was the original driver. International SMS was expensive; WhatsApp made distance irrelevant.
- Group messaging is the feature people would not give up. SMS group chats were, and remain, poor.
- SMS is not encrypted and never was. WhatsApp has been end-to-end encrypted by default since 2016.
- SMS still beats it in one situation: no data connection. That is a real advantage in an emergency.

## Where the switch came from

The reason WhatsApp displaced texting is unglamorous: money. For most of the 2000s, SMS was billed per message, and international SMS was billed painfully. A text to another country could cost more than a pound or dollar. For anyone with family abroad — which is a very large number of people — that was a real monthly expense.

WhatsApp routed messages over the internet instead, where distance has no price. A message to Lagos cost the same as a message next door: a few bytes. That single fact drove adoption in Europe, India, Brazil, Nigeria and across the Middle East faster than any feature ever did.

It also explains why the United States is the odd one out. American carriers moved to unlimited domestic texting early, and iMessage gave iPhone users a free upgrade automatically. The problem WhatsApp solved had already been solved there, which is the whole story behind [why people use WhatsApp](/why-people-use-whatsapp) unevenly around the world.

## Feature by feature

**WhatsApp compared with SMS, RCS and iMessage**

|  | WhatsApp | SMS | RCS | iMessage |
| --- | --- | --- | --- | --- |
| Needs internet | Yes | No | Yes | Yes (falls back to SMS) |
| Cost per message | None | Varies by plan and country | None | None |
| Works internationally at no extra cost | Yes | Usually charged | Yes | Yes |
| End-to-end encrypted | Yes, by default | No | Yes between Google Messages users | Yes between Apple devices |
| Group chats | Strong — up to 1,024 members | Weak, and inconsistent | Good | Good, Apple-only |
| Photos and video | Compressed but reliable | MMS, poor quality, often fails | Good | Good |
| Voice and video calls | Yes | No | No | Yes, via FaceTime |
| Cross-platform | Yes | Yes | Yes, now on iPhone too | No — Apple devices only |
| Works with no signal at all | No | Sometimes, on one bar | No | Falls back to SMS |

**Figure: What each system is actually best at**

None of them wins on every axis, which is why several survive.

- WhatsApp — Cross-platform groups, international contact, media
- SMS — Reaching anyone, including on a dead data connection
- RCS — The modern default texting layer on Android, now on iPhone
- iMessage — Seamless quality between Apple users, invisible when it works

## Groups are the feature nobody gives up

Ask people why they will not leave WhatsApp and the answer is rarely encryption. It is that the family group, the class group, the five-a-side football group and the street group all live there.

SMS group messaging was always poor: no names, no ability to leave, replies that split into separate threads on some phones, and no way for a member to see who else was in it. WhatsApp made groups a first-class object with admins, descriptions, mentions, replies to specific messages and a member list — and made them work identically on every phone.

The cost of that is a privacy one people rarely think about at the time: every member of a group can see every other member's phone number. That is covered in [does WhatsApp show your phone number](/does-whatsapp-show-your-phone-number).

## The encryption difference is real

SMS has no encryption. Messages travel through the carrier's network in a form the carrier can read, are retained by them for a period, and are obtainable by law enforcement with the appropriate order. That is not a scandal — it is just how the system was designed in the 1980s.

WhatsApp encrypts personal messages end to end by default, so the servers relay ciphertext they cannot decrypt. Meta holds metadata about who you talked to and when, but not the words. The precise boundary between the two is the subject of [can WhatsApp be hacked](/can-whatsapp-be-hacked).

> **Two-factor codes are the exception** — The one category of message where SMS is unavoidable is bank and account verification codes, which are still sent by text almost everywhere. That is also the least secure place to be using an unencrypted channel, which security researchers have been pointing out for a decade.

## Where texting still wins

It is worth being honest about this rather than treating SMS as obsolete.

- No internet required. SMS travels on the mobile network's control channel and often gets through when data does not — a genuine advantage in a rural area, a basement, or an emergency.
- Universal reach. Every phone can receive a text. No app, no account, no registration.
- No account to lose. There is no code to be phished out of you and no account to be taken over, because there is no account.
- Reliability under load. During disasters, SMS frequently survives when data networks are congested.

The dependence on a data connection is the practical trade WhatsApp asks you to make, and it is set out in [does WhatsApp work without Wi-Fi](/does-whatsapp-work-without-wifi).

## What RCS changes

RCS is the modern replacement for SMS built into the default messaging app on Android, and since 2024 supported on iPhone as well. It brings read receipts, typing indicators, decent media and, between Google Messages users, end-to-end encryption. It is essentially texting brought up to date.

Whether it dents WhatsApp is doubtful, and for a reason that has nothing to do with features. Nobody switches messaging app for a better feature set; they switch when the people they talk to switch. WhatsApp's advantage is that the group chats are already there, which is the same network effect that made it worth $19 billion — see [who owns WhatsApp](/who-owns-whatsapp).

> **Editor's note** — Worth stating plainly: the encryption picture for RCS is messier than the marketing suggests. It is end-to-end encrypted between Google Messages users, and the position for cross-platform RCS between an iPhone and an Android has been evolving. If encryption is the reason you are choosing, check the current state rather than assuming — this is an area where accurate information goes stale within months.

## Using both sensibly

1. Use WhatsApp for the people and groups already on it, which will be most of your regular contacts outside the US.
2. Keep SMS for verification codes, for businesses, and for anyone who does not have WhatsApp.
3. Do not delete your texting app to 'commit' to WhatsApp. You will need SMS for the six-digit code the next time you set the app up on a new phone.
4. If you travel to places with poor data coverage, remember that a text may get through when a WhatsApp message will not.

## Frequently asked questions

### Is WhatsApp cheaper than texting?

Almost always. WhatsApp costs nothing per message and uses a negligible amount of data for text. SMS is free on most modern domestic plans but is usually charged internationally, which is where the difference is stark.

### Can I send a WhatsApp message to someone who does not have WhatsApp?

No. WhatsApp only reaches other WhatsApp accounts and cannot fall back to SMS the way iMessage does. If a contact does not appear in the app, they are not registered on that number.

### Is WhatsApp more secure than SMS?

Yes, for message content. WhatsApp encrypts personal messages end to end by default; SMS is not encrypted at all and is readable by the carrier. WhatsApp does collect more metadata than a carrier typically links to your identity, so 'more private overall' is a more complicated claim than 'more secure in transit'.

### Why do Americans text instead of using WhatsApp?

Because the problem WhatsApp solved was already solved there. US carriers offered unlimited domestic texting early, and iMessage upgraded iPhone-to-iPhone messaging automatically and invisibly. WhatsApp is still widely used in the US for contact with people abroad.

## Sources

- [About end\-to\-end encryption](https://faq.whatsapp.com/general/security-and-privacy/about-end-to-end-encryption) — WhatsApp Help Center. Supports: That personal messages, calls and media are end-to-end encrypted by default, in contrast to SMS.
- [Social Media Fact Sheet](https://www.pewresearch.org/internet/fact-sheet/social-media/) — Pew Research Center. Supports: Comparative US adoption figures for messaging platforms, which underpin the point about WhatsApp's weaker position in the United States.