Components
WebApps is an open-source, secure, sandboxed browser for the mobi / web app website. this app can surf web sites / web apps safely within the app, so we access the web as much as you like to access the web in other browser applications.
Proposal
My suggestion for this app developer to add feature "incognito mode" this feature can be placed in the top menu of the application main view.
Mockups / Examples
before the feature is added

after the feature is added
when a user opens an incognito tab will appear

Benefits
The benefit if the feature is added to the user can open a page or search that will not be saved to the history, search history will be lost if the user menutub incognito tab. so users can better utilize the application for personal use.
I'm sure if the feature is added it will make the app users increase.
Posted on Utopian.io - Rewarding Open Source Contributors