[Guide] How to Downgrade apps on AppStore with iTunes 12.6.5 & Charles Proxy (no Jailbreak).

Table of contents

I. Notes

II. Requirements

I. Notes

• The Guide seems complicated, but only need to do Step 1 to 3 for the first time. And there are 4 steps in total.
• Jailbreak is NOT needed. Since the iPA comes directly from iTunes, it's encrypted and can be installed without Sideload. The IPA is 100% legit.
• You can get the old version of any apps on as long as that version is still available on AppStore.

II. Requirements