Excellent lv. 3 Security Browser! Recommended. – Private Browsing Web Browser Review

Confirmed this app runs smoothly a 4th gen iPad and an iPhone 6s. When you lock the screen or switch apps even for a moment, it goes to the home screen. This is made for intentional uses, and doesn't not make a friendly primary browser (unless you're extremely privacy conscious). My suggestion is use the Firefox app duo (normal / incognito) for lv. 1 & 2, this for uses beyond those.
Review by Yfmme7 on Private Browsing Web Browser.