It should resemble com.robtopx.geometryjump_2.2.x_mod.apk . Avoid files named geometrydash_noclip_FREE.exe (those are PC viruses).
In the editor, you can set a "Start Position" to test any specific 5-second section of a level repeatedly. No mods required. Geometry Dash 2.2 Apk Noclip Android