Google has opened access to the development of applications using Instant Apps technology, which allows you to run Android programs without downloading to devices.
The Instant Apps feature has been available to a limited number of developers since the beginning of the year.
To create “instant apps”, developers will need an Android Studio 3.0 editor with the Android Instant Apps SDK.
Developers will be able to add the Instant Apps feature to existing apps. This will allow users to pre-familiarize themselves with their products before purchasing and installing.
Instant Apps technology is supported by the latest version of the Android O mobile OS, presented at the annual Google I/O 2017 conference.
Source: Android developers blog