Phone Storage Full? How to Free Up Space on iPhone and Android Without Losing Anything

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Step 1: See what is using space

• iPhone: Settings › General › iPhone Storage. Apps are sorted by size, with recommendations at the top.
• Android: Settings › Storage (or Device care › Storage on Samsung). Tap categories to drill down. The Files by Google app also suggests clean-ups.

Step 2: Photos and videos (usually the biggest)

1. Back up first. iCloud Photos on iPhone, or Google Photos on Android/iPhone. Check the backup finished.
2. iPhone: Settings › Photos › Optimise iPhone Storage keeps small versions on the phone and full ones in iCloud.
3. Google Photos: profile picture › Free up space removes local copies already backed up.
4. Delete duplicates, screenshots and blurry bursts. Both platforms now group duplicates for you.
5. Empty Recently Deleted: deleted photos keep using space for up to 30 days.
6. Record video at 1080p instead of 4K when you do not need 4K; it uses far less space.

Step 3: Messaging apps

WhatsApp, Telegram and similar apps quietly save every photo, video and voice note from group chats.

• WhatsApp: Settings › Storage and data › Manage storage, then review "Larger than 5 MB" and the biggest chats.
• Turn off automatic media download on mobile data, or for busy groups.

Step 4: Apps

• Offload unused apps on iPhone (keeps documents and data, removes the app) under Settings › Apps › App Store.
• On Android, uninstall apps you do not use; Google Play can also archive unused apps automatically on recent versions.
• Clear large caches: streaming apps with downloaded episodes, podcasts, maps and music offline files.

Step 5: "System Data" and "Other"

This category holds caches, logs and temporary files. It shrinks on its own when space runs low. Clearing Safari or browser data and restarting the phone often helps. If it is huge and never shrinks, a full backup and restore is the last resort.

Running out regularly?

• A bigger cloud plan is often cheaper than a phone with more storage.
• Many Android phones accept a microSD card for photos and music.
• For iPhone and USB-C phones, a phone-compatible flash drive moves videos off quickly.

Keep a copy of everything that matters: our free backup guide.

Quick answers

Why does my 128 GB phone show less space?

The operating system and preinstalled apps take part of it, and phones count in binary units. Expect 10–20 GB to be used before you install anything.

Will clearing app cache delete my data?

Clearing cache is safe. Clearing storage or data resets the app and can delete downloads or logins.