The official app is a popular micro-learning tool that provides 15-minute nonfiction book summaries in text and audio. A "modded" version typically aims to unlock Premium features —like the full library of 2,000+ summaries—without the standard subscription costs . General Guide for Modded APKs
Modded apps do not update through the Play Store. You would have to manually find and install a new APK every time a new version is released. Headway v2200 modded by Mixrootapk
Are you having the file, or were you looking for a list of features included in that specific version? Headway - Daily Micro Learning - Apps on Google Play The official app is a popular micro-learning tool