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1.Recipients can reply all if their provider allows multiple recipients<br />
2.SMS
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1.Recipients can reply all if their provider allows multiple recipients
2.SMS

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For android, the user can customise what apps to handle SMS and MMS (for example, Samsung uses Hangout app), but you need to look into the settings of SMS and MMS to avoid being charged for the rather expensive MMS.
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For android, the user can customise what apps to handle SMS and MMS (for example, Samsung uses Hangout app), but you need to look into the settings of SMS and MMS to avoid being charged for the rather expensive MMS.

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For the reply all function in android, it varies from different version of the android OS and apps to handle the SMS. Just press and hold the message to check whether there is a reply all option.
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For the reply all function in android, it varies from different version of the android OS and apps to handle the SMS. Just press and hold the message to check whether there is a reply all option.

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Hi<br />
<br />
I have noticed on some smartphones I cam compose an SMS message to multiple recipients at once (group conversation). <br />
<br />
Does anyone have more information on how this works across iOS, Android and Blackberry? For example:<br />
<br />
1. Are recipients supposed to be able to reply-all to the message?<br />
<br />
2. Are these sent as SMS or MMS messages?
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Hi

I have noticed on some smartphones I cam compose an SMS message to multiple recipients at once (group conversation). 

Does anyone have more information on how this works across iOS, Android and Blackberry? For example:

1. Are recipients supposed to be able to reply-all to the message?

2. Are these sent as SMS or MMS messages?

Sending SMS to multiple recipients

The BlackBerry operating system is proprietary; releases beginning with BlackBerry 10 include support for applications written for the Android platform. As such, developers can use almost any programming language that can be used for other smartphones, including Java, Adobe Air, .NET and HTML5/JS (via an app packaging framework like PhoneGap) .

BlackBerry Programming

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).

Android

The iPhone is a smartphone made by Apple Inc. It and the iPad, along with several other mobile devices from Apple, run on the iOS operating system, which has its own topic, as does the iPad for device-specific questions. Native iOS applications are written in Objective-C or in Swift using the Cocoa Touch frameworks or HTML5 compiled with the help of a package manager such as Adobe PhoneGap; a common IDE is Xcode.