What do RCS messaging apps do in the USA that we don't already have?

I have what many in the USA have which is free unlimited SMS/MMS
and free unlimited data (for the MMS I guess) and if I wanted
to have read receipts or encryption or backups, I could with this app.
*Pulse SMS* (Phone/Tablet/Web) by Maple Media, In-app purchases
free, adfree, reqgsf, 4.7star,78.5K reviews,1M+Downloads
<https://play.google.com/store/apps/details?id=xyz.klinker.messenger>

Given that app already does everything I think I want an app to do...
*What does RCS do for me in the USA that I don't already have access to?*

(Note I use an older version of PulseSMS but I put the latest descriptor
for what the app can do in the signature below for comparison to RCS.)
--
Want an SMS app that is fast, secure, and packed with all the features and
customization you could want? Look no further.

Pulse SMS is a seriously beautiful, next-generation, private text messaging
app.

We care deeply about your experience with the app, and are committed to
creating the best SMS texting app.

To round out its best-in-class phone app, Pulse SMS re-imagines your
communication by giving you the ability to sync your SMS and MMS messages
across all of your devices. Send and receive texts and
pictures�Xseamlessly�Xfrom your computer, tablet, car, or any device with an
internet connection.

This is text messaging, done right.

---------

A Taste of the Features
Pulse SMS is jam packed with features. On top of syncing between all of
your devices, here is a small taste of what makes it the ultimate text
messaging experience:
- Unparalleled design and fluid animations
- Endless global and per-conversation customization options
- Suggested Smart Replies within conversations
- Password protected, private text conversations
- Share GIFs with your messages, from Giphy
- Powerful searching through messages and conversations
- Automatic message backup and restore with a Pulse SMS account
- Preview web links
- Blacklist pesky spammers
- Delayed sending to give you time to edit or cancel messages you send
- Automated replies based on contacts, keywords, and driving/vacation modes
- Dual-SIM support

Encryption Protocol
First and foremost, all of your conversations are stored in end-to-end
encryption. You never have to worry about your data leaking out and no one
can see your messages except for you, not even the Pulse SMS Team! With
Pulse SMS, you get privacy and peace of mind, right out of the box.

Privacy Protection Proof
In technical terms, we use PBKDF2 to encrypt your password and use it as a
key to encrypt messages and conversations.

Technical Encryption Overview

1) When an account is created, we generate two salts. One to use with
authentication and one for end-to-end encryption.

2) The one that we use with login is straight-forward and normal. We store
a version of your password, hashed against the first salt, and authenticate
you against this hash.

3) For the encryption, we hash your password against salt #2 and store it
locally on your device (computer/tablet/phone). Having this key is the only
way that you can decrypt messages. Since no one else has the password that
was hashed against the second salt, no one else will be able to decrypt
anything.

We share our privacy protocol publicly so our users have peace of mind
knowing their password is never stored anywhere and without that password,
there is no way to create the secret key used for encrypting and decrypting
the content stored in the backend.

Supported Platforms
Pulse SMS has a web app that you can use. It also has native apps for
tablets, MacOS, Windows, Google Chrome, Firefox, Linux, and even Android
TV. Check out all of our platforms, along with screenshots, here:
https://home.pulsesms.app/overview/

-------

Pulse SMS is the premier web, computer, and private texting application on
Android. Everything is instant, setup is a breeze, and it's design is
unlike anything you have ever seen.

Helpful Links

Website: https://maplemedia.io/
Privacy Policy: https://maplemedia.io/privacy/
Support: contact@maplemedia.io