Google Area 120, the search giant’s internal incubator for experimental projects, today released a new app called Stack. The Android program is built on the technology behind the powerful corporate tool DocAI and is designed to scan documents.

Google says the new product significantly outperforms similar applications with the ability to automatically categorize documents and stack them in virtual stacks, as well as full-text search by content, not just titles.

Stack team leader Cristopher Pedregal joined Google a couple of years ago when the search giant acquired its startup Socratic, which uses Google’s computer vision and language recognition for educational purposes. Following the acquisition, Pedregal and his colleague Matthew Cowan joined Google Area 120 to develop what would eventually become Stack.

Among the capabilities of the new application, it is worth noting the ability to protect confidential documents, thanks to the use of biometric user authentication. Another useful feature is the ability to automatically create fields for filling in scanned documents.

At this stage, the application has been released only in the hope that it will gain popularity over time. Google does not yet have a specific business model to distribute it. Stack developers emphasize that this is just the beginning, because the application may not work exactly as expected by users and make mistakes.