160 to 70 Unicode characters problem on iOS for SMS text messages

I know this has been discussed a lot .. Unicode table of all latin characters: a à á â ã ä å æ ā ă ą ǎ ǟ ǡ ǻ ⱥ b ƀ ḃ ƃ ḅ ḇ c ç ¢ ć ĉ č and so on...

Is there any solution from Apple to eliminate these when sending standard SMS message to people without Apple device?

Even if I try to type only the basic latin characters, the international keyboard makes auto-correction based on the language selected. I do not want to turn off the autocorrection every time I write an email.

What I need is for the iOS to allow me to set the outgoing SMS message characters in unicode like the ones above to convert to their standard latin characters.

On Android at least you have an option to use 3rd party SMS messaging apps and there are a few that can do that - convert the text when it is sent out. That way when the message goes out, a 71 character message is sent as 1 message instead of 2 messages.

That helps avoiding the pesky extra charges for sending SMS messages containing unicode characters (many who write in non-English and watch the costs sending SMS in particular when roaming would probably have this experience).

Here the problem was discussed but I don't see any final solution:

iPhone 4 text message problems - 160 to 7… - Apple Community

I am new to iOS after a few years on Android so I don't know if there is a solution to this. Did Apple resolve this? Searching online there is nothing about it. Right now every time I am sending the SMS I am manually copy and converting the text before I send out with this app:

https://apps.apple.com/us/app/subtext/id1606625287