单声道的iOS / Android的开放式或封闭式？付费或免费的吗？ [英] Mono for iOS/Android Open or Closed? Paid or Free?

问题描述

我试图了解更多关于移动/平板电脑的发展，并为.NET开发人员，我自然垂落单。但我很困惑 - 我认为单是免费和开源的;然而，种种迹象似乎都指向单声道是一个付费即播的交易（https://store.xamarin.com/）。

I am attempting to learn more about mobile/tablet development and, as a .NET developer, I am naturally drawn to Mono. But I am confused--I thought that Mono was free and open source; however, all signs seem to point to Mono being a "pay-to-play" deal (https://store.xamarin.com/).

有人可以帮我理解这是正确的答案？

Can someone please help me understand which is the correct answer?

谢谢！

太

推荐答案

首先让我们澄清了单情况： - ）

First let's clear up the Mono case :-)

Mono是免费的在言论自由，不是免费啤酒。你可以免费得到它（即不支付），因为它是在允许这种开源许可可用。但是，你仍然可以为它付出太多（例如人并支付单在Novell的天有些版本）。还有些人不能用单下的免费的开源许可证（例如，作为一个游戏引擎，其中源不可用...）。在这种情况下，商业许可，从版权持有人，是必要的。

Mono is free as in free speech, not free beer. You can get it for free (i.e. without paying) as it is available under open source licenses that allow this. But you could still pay for it too (e.g. people did pay for some versions of Mono in Novell's days). Also some people cannot use Mono under the free open source licenses (e.g. as a game engine where the source is not available...). In such cases a commercial license, from the copyright holders, is needed.

单声道为Android是一种基于单和Xamarin销售的商品（谁有权许可单的权利）。它再利用的很多事情单已经实现，也带来了很多更多的功能，让.NET开发人员使用他们的技能对Android平台。

Mono for Android is a commercial product based on Mono and sold by Xamarin (who has the rights to license Mono). It re-use a lot of what Mono has achieved and also brings a lot more features to allow .NET developers to use their skills on the Android platforms.

单声道的安卓最后的评估版本的免费并与Android模拟器（不与设备）使用时，功能齐全。所以，你仍然可以尝试，学习，享受单声道和单声道为Android没有支付一分一毫，Xamarin： - ）

Finally evaluation versions of Mono for Android are free and fully functional when used with the Android emulator (not with devices). So you can still try, learn and enjoy Mono and Mono for Android without paying a dime to Xamarin :-)

请注意：这同样适用于MonoTouch的，它允许你建立从Mac OSX上的计算机基于.NET的iPhone / iPad的（的iOS）应用程序

note: the same applies for MonoTouch which allows you to build .NET-based iPhone/iPad (iOS) applications from an Mac OSX computer.

免责声明：我的Xamarin合作

Disclaimer: I work for Xamarin

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