Is there any messaging app that confirms receipt?

[PsychDoc]

Like iMessage?

 

[Aquila]

Depends on who your carrier is. Assuming you want this on SMS and not just a messaging app, such as WhatsApp, etc. RCS support is the mechanism to make this work: https://www.androidcentral.com/what-rcs-and-why-it-important-android

 

[trucksmoveamerica#AC]

Texting, textra does it.