Guide · Updated October 2026

Ranking updated

How to free up phone storage on Android and iPhone

“Storage almost full” usually comes from four places: photos and videos, messenger caches, apps you forgot about, and downloads. Before you install a cleaner, look at what actually takes the space, then go through it in order from the biggest item to the smallest.

Steps that work on Android and iPhone, then cleaner apps, with a section for storage cleaner apps rising by visits on the Censuus ranking. Menu names differ between phone makers and system versions.

Storage cleaner apps rising by visits and sponsorship on Censuus

Younger apps from independent developers:

Ranked by visit traffic and sponsorship on Censuus, not editorial opinion. The list changes as new apps appear and gain traffic.

Start with what takes the space

On Android open Settings → Storage; on iPhone open Settings → General → iPhone Storage. Both show which categories and apps take the most room. On iPhone the same screen offers to offload apps you rarely use: the app is removed but its documents and data stay.

Photos and videos first

Duplicates, near-identical shots, screenshots and long videos are the quickest win. After deleting, empty the Recently Deleted album, otherwise the space comes back only later. A step-by-step guide is in how to clean up your photo library, and apps are compared in photo cleaner apps.

Messengers, downloads and files

Messengers keep every photo, video and voice message you received. Telegram, Viber and WhatsApp each have a storage section in settings where you can clear cached media or limit auto-download. Then go through Downloads with a file manager; see file manager apps for Android.

Compared from each developer’s own store description.
StepWhat you doWhy
1. Check what takes spaceSettings → Storage (Android) or General → iPhone Storageyou clean the biggest thing first
2. Clear photos and videosduplicates, screenshots, blurry shots, long videosusually the largest category
3. Remove unused appsdelete them, or offload on iPhone and keep the dataapps grow with their data
4. Clear messenger cachesin Telegram, Viber or WhatsApp storage settingscached media piles up quietly
5. Move what you keepto cloud storage or a computerspace without losing anything

Frequently asked questions

How do I free up space on my phone?

Check what takes the most space in settings, clear photos and videos, remove apps you do not use, clear messenger caches and downloads, then move what you keep to the cloud or a computer.

Why is my phone storage still full after deleting photos?

Deleted photos stay in the Recently Deleted album for a while. Empty it to free the space now.

Do I need a cleaner app?

Not always. System settings show what takes space. A cleaner app helps most with finding duplicates, similar shots and large videos in a big photo library.