Most sunset filters only warm the screen. Iris also goes below the hardware brightness floor, removes flicker and schedules breaks, which is the part that actually helps after eight hours in front of a monitor.

f.lux is the tool that started this category: give it a location and the screen follows a sunrise and sunset curve, standard colour at noon, gently warm after dusk and deeper late at night, with finer control, time based curves and per-application exemptions.

A free Android file manager that also mounts the big cloud drives and reaches SMB, FTP, SFTP, FTPS and WebDAV shares, with storage analysis, automatic grouping by file type, archive handling and a local server so a computer can browse the phone.

A cleaner that has been at this for more than twenty years: temporary files, logs, thumbnails and browser traces out, startup entries and leftover uninstall debris managed. The free tier covers cleaning, privacy and startup control; the paid tier adds automation.

An Android file manager that puts local storage, shared folders on the same network, remote servers reached over file transfer protocols and several cloud accounts behind a single entry point, with a text editor and archive handling included.