Zarchiver Version 11 May 2026

| Operation | Format | Size | Time (seconds) | |-----------|--------|------|----------------| | Compression (store) | ZIP | 50 MB | 1.8 | | Compression (max) | 7z | 50 MB | 12.4 | | Extraction | RAR | 100 MB | 4.2 | | Extraction | 7z | 100 MB | 6.7 |

Version 1.1 required only READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE . No internet permission was requested, ensuring no data exfiltration risk. All temporary files were stored within the app’s private sandbox. zarchiver version 11

Abstract ZArchiver is a file compression and extraction tool designed for the Android operating system. Version 1.1 represents an early stable release that established core functionality for handling multiple archive formats on mobile devices with limited computational resources. This paper documents its architecture, supported formats, performance characteristics, and usability features. | Operation | Format | Size | Time