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Storage

Storage usage, mounted volumes and partitions, media library sizes, and charts.

Overview​

The Storage tool gives you a complete picture of how storage is used on your device. It shows overall disk utilization, enumerates every mounted volume and partition, breaks down your Photo and Music libraries (with permission), and presents everything through interactive charts.

Lirum detects all mounted filesystems, including external USB storage drives when connected on supported devices (iPad with USB-C, Mac Catalyst). On macOS Catalyst, Lirum also includes Storage Analyzer for deeper disk scanning and file-level analysis.

Overview tab with animated storage gauge, Photo Library breakdown, and Music Library panel.
Overview tab scrolled, showing Photo Library totals and the Music Library permission prompt.

Table Of Contents​

Tabs​

The Storage tool has three tabs. You can swipe between them or tap the tab titles.

  • Overview
  • Details
  • Graphs

Overview Tab​

The Overview tab includes:

  • An animated circular storage gauge that fills to show the proportion of used storage relative to total capacity. The center displays the used amount and total capacity in human-readable units (e.g. "804.16 GB of 953.13 GB").
  • A Photo Library panel (requires Photos permission):
    • Photos count and total size
    • Videos count and total size
    • Combined total item count and size
    • A progress indicator while the library is being scanned
  • A Music Library panel (requires Media Library permission):
    • Songs, playlists, albums, and artists counts displayed in a grid
    • A progress indicator while the library is being scanned
  • A Refresh button (arrow icon) in the Photo Library header that re-runs both the Photos and Music library calculations.

Details Tab​

The Details tab enumerates all mounted volumes and partitions visible to the app. Each partition is listed as a card identified by its mount point path (e.g. /, /private/preboot, /private/xarts, /private/var).

Each partition card displays:

  • A gradient progress bar showing used space (red) vs. free space (blue), with raw byte counts above and percentages below
  • Mount point — the directory path where the volume is mounted
  • Device — the block device identifier (e.g. /dev/disk2s1)
  • Filesystem — the filesystem type (e.g. apfs, msdos, exfat)
  • Total — total capacity in human-readable units and raw bytes
  • Used — used space with percentage and raw bytes
  • Free — free space with percentage and raw bytes

Tapping a partition card opens a dedicated drive detail view with a circular utilization gauge and the same key-value information in a larger, more readable layout.

On devices that support external storage (iPad with USB-C, Mac Catalyst), connected USB drives and their partitions also appear in this list with the same level of detail.

Details tab listing partitions by mount point path, each with a usage bar and filesystem info.
Details tab scrolled, showing additional partitions like baseband data and MobileSoftwareUpdate.

Graphs Tab​

The Graphs tab presents four interactive charts that visualize storage and media library data:

  • Media Distribution — a donut chart showing the size split between Photos and Videos, with the total media size displayed in the center.
  • Photo vs Video Comparison — a horizontal bar chart comparing item counts for Photos and Videos, with summary statistics for total items and average file size.
  • Music Library Statistics — a horizontal bar chart showing counts for Songs, Albums, Artists, and Playlists, with derived metrics like songs per album and songs per playlist.
  • Storage Breakdown — a donut chart splitting total storage into Photos, Videos, Other Used, and Free, with the total capacity in the center and a legend showing each category's size and percentage.

Charts that depend on Photo or Music library data display a permission-required message if access has not been granted.

Graphs tab with Media Distribution donut chart and Photo vs Video Comparison bar chart.
Graphs tab scrolled, showing Music Library Statistics and Storage Breakdown charts.

Permissions​

The Storage tool may request:

  • Photos permission — required for the Photo Library panel, Media Distribution chart, Photo vs Video Comparison chart, and the Photos/Videos portions of the Storage Breakdown chart.
  • Media Library permission — required for the Music Library panel and Music Library Statistics chart.

If permission is denied, Lirum shows a permission-required state with a Grant Access button (for first-time requests) or an Open Settings action (if previously denied).

Notes And Limitations​

  • Library size calculations can take time on large libraries; while calculating, Lirum shows a progress indicator and partially updated counts.
  • The list of mounted volumes and partitions varies by OS version and device. On iOS, only volumes visible to the app sandbox are shown. On Mac Catalyst, all mounted volumes are listed, including external USB drives.
  • Pseudo-filesystems (e.g. devfs) are filtered out automatically.
Last updated on by Rogerio Hirooka