Sygic did release v28 officially. But if you downloaded an APK from a random forum or file host, it could be tampered.
: The new release introduces parallel heightmap processing, allowing the map to render vehicles and load roads significantly faster than previous versions. sygic-profi-navi-profiapp-arm64-v8a-release-28....
Release 28 builds upon Sygic’s proven core functionality while introducing deeper customisation options for fleet administrators and integration partners. Sygic did release v28 officially
Install an app like Droid Hardware Info or CPU-Z . Look for “Instruction set: arm64-v8a”. Most modern Android devices (Galaxy S9 and newer, Pixel 2+, etc.) support it. follow this safe path:
3. Core Capabilities of Sygic Professional Navigation Release 28
Even if you want version 28 specifically, follow this safe path: