title: Runner.app size is about 400mb. How to reduce it?
body: <p>I'm developing flutter app using <code>flutter_tts</code> library which is written on <code>swift</code>, so I have to use <code>swift</code> as build language for ios otherwise it won't work. Release build size for <code>android</code> is about 20-30mb, but for ios is almost <strong>400 mb</strong>. This is not because of assets. I read about this problem and a lot of people said that this is because swift, so I created a hello world app and compared release build sizes: <code>objc: ~20mb</code> and <code>swift: ~65mb</code>. Unfortunately, I have no choice. Now <code>Flutter</code> build for ios is 10-15 times bigger than for android. <strong>400 mb</strong> – it seems like a joke, obviously it's inappropriate. Even if I convert <code>Runner.app</code> to <code>ipa</code> file, the size will be about <strong>200mb</strong>. This is too large size to download app from <code>AppStore</code>. </p>
  
  <p>Am I doing something wrong? Could someone help me? Any help is appreciated!</p>