Sending a message from iPad to google messages

There is no app that can message to SMS. SMS and MMS are cellular telephone services. They require a cellular telephone to send and receive over the cellular telephone voice channel.

In order for both of them to use Google Hangouts, or Skype or any other proprietary internet messaging service, they both must install the app for the service and use that. Skype users can only message other Skype users. Same with Google Hangouts, WhatsApp or any other internet messaging service. These are all proprietary services and thus do not talk across services.

Hello,

This feature would require that your daughter also have an iPhone. Since she does not then her grandmother would need to download another messaging application that works on both iPad and Android.

It’s important to note that SMS is actually a very old technology that predates the creation of the internet. It uses a very small portion of unused bandwidth in the cellular telephone voice spectrum to transmit short messages. It has the advantage that it is ubiquitous over all cellular telephone networks, but it requires a cellular telephone (not necessarily a smart phone though as any cell phone can send or receive SMS texts).

All of the internet messaging services that came along much later were developed by independent companies as proprietary services. They have zero incentive to talk across services, and could not do so regardless since each company operates its own service using its own hardware and its own protocols. They want you to use their service, and thus their own apps.

The advantage of internet messaging is that they work on any internet connected device - smart phone, tablet, laptop, desktop, smart watch - doesn’t matter. They also work over any internet connection - ethernet, WiFi, cellular (MiFi) - again doesn’t matter.

The limitation of internet messaging is that everyone in a conversation must be using the same proprietary service and the apps to access that service. That’s why many people end up having multiple internet messaging accounts and apps - MS TEAMs or Skype, WhatsApp, FaceBook messenger, iMessage, Google Hangouts, Zoom, etc, etc.