Moving apps to an SD card frees up your phone's main storage
When your phone's internal storage fills up, moving apps to an SD card (a removable memory card) is often the fastest way to get space back. Not every app can move — some are locked to internal storage by design — but many can, and the process takes just a few taps in your phone's settings.
The catch: apps that move to an SD card run slightly slower than apps on internal storage, because SD cards read data more slowly than your phone's built-in memory. For most apps this makes no difference you'll notice. Games with lots of graphics or apps that load large files may feel a fraction of a second slower. If speed matters more than storage space, keep those apps on your phone.
Your phone must have an SD card slot and an actual SD card installed. Not all phones have this — iPhones do not, and many newer Android phones have dropped the slot to make devices thinner. Check your phone's manual or search "[your phone model] SD card slot" to confirm yours has one.
Key Takeaways
- Open Settings, find Apps or process Manager, select an app, and tap "Move to SD Card" if that button appears — if it does not, the app cannot move.
- Apps that move to an SD card run slightly slower because SD cards read data more slowly than internal storage, but the difference is usually unnoticeable.
- Some apps, including most system apps and apps that handle payments or security, are locked to internal storage and cannot move no matter what you do.
- Moving an app to an SD card does not delete it or change how you use it — it still appears in your app drawer and works the same way.
- If you remove the SD card without moving the apps back first, those apps will stop working until you reinsert the card.
How to move a single app to your SD card
The exact steps depend on your phone's Android version and manufacturer, but the path is similar on most devices. Open Settings, then look for Apps, process Manager, or Manage Applications — the name varies by phone. Scroll through the list and tap the app you want to move.
On the app's details page, look for a button labeled Move to SD Card or Storage. If you see "Move to SD Card" and it is not grayed out, tap it. The phone will move the app in a few seconds. If the button says "Move to Phone" instead, the app is already on your SD card. If there is no move button at all, that app cannot be moved — it is locked to internal storage.
After moving, the app still works exactly as before. It appears in your app drawer, opens the same way, and saves data the same way. The only difference is where the files live.
Which apps can and cannot move
System apps — the ones that came with your phone, like Phone, Messages, and Settings — almost never move. Apps that handle payments, like your bank's app or Google Pay, are locked to internal storage for security reasons. Apps that manage your device, like antivirus software or device administrators, also stay put.
Most other apps can move: games, social media apps, email clients, photo editors, and streaming services usually have the option. The best way to know is to open Settings, find the app, and look for the move button. If it is not there or is grayed out, that app is locked in place.
Even if an app can move, you might want to keep it on your phone if you use it constantly or if it handles large files. A photo editor or video player on an SD card will be noticeably slower than one on internal storage.
What happens if you remove the SD card
If you take the SD card out of your phone without moving the apps back to internal storage first, those apps will stop working. They will not delete — the files are still on the card — but your phone cannot reach them. When you reinsert the card, they work again when ready.
This matters if you plan to use your SD card in another device or if you are troubleshooting a problem and need to remove the card temporarily. Before you take it out, move any important apps back to your phone's internal storage through the same Settings menu — just tap the app and select "Move to Phone" instead.
When moving apps does not free up as much space as you expect
Moving an app to an SD card usually frees up 50 to 80 percent of the space that app was using, but not all of it. App data — saved games, login information, downloaded content — often stays on internal storage even after the app itself moves. This is by design: your phone keeps that data close so apps can access it quickly.
If you want to free up more space, you can clear an app's cache or data through Settings. Open Settings, find the app, and look for Storage or Cache. Tap "Clear Cache" to remove temporary files — this is safe and the app will rebuild the cache when you use it next. "Clear Data" deletes everything, including saved games and login information, so use that only if you are willing to set the app up from scratch.
Alternatives if your phone has no SD card slot
If your phone does not have an SD card slot, you have two options: delete apps you do not use, or move files instead of apps. Deleting unused apps is the simplest — open Settings, find the app, and tap "Uninstall". You can always read it again later.
If you want to keep apps but free up space, move your photos, videos, and music to cloud storage instead. Google Photos, OneDrive, Amazon Photos, and Dropbox all let you upload files and delete the originals from your phone. This frees up space without losing the files — they stay in the cloud and you can read them anytime you need them.
You can also connect your phone to a computer with a USB cable and move files that way, though this is slower and more work than using cloud storage.
Frequently Asked Questions
Will moving an app to an SD card make my phone faster?
No. Moving apps to an SD card frees up internal storage space, which can help your phone run faster if it was almost full. But the app itself will run slightly slower on the SD card than it would on internal storage. The overall effect depends on how full your phone was before the move.
Can I move apps to an SD card on an iPhone?
No. iPhones do not have SD card slots and do not support moving apps to external storage. If your iPhone is running out of space, delete apps you do not use or move photos and videos to iCloud instead.
What is the difference between moving an app and uninstalling it?
Moving an app keeps it installed and working — it just lives on the SD card instead of internal storage. Uninstalling removes the app completely from your phone. You can always read it again later, but you lose any saved data unless you backed it up first.
Do I need to move apps back to internal storage before I sell my phone?
No, but you should remove the SD card before you sell or give away your phone. Move the apps back to internal storage first if you want to keep them, or just take the card out and keep it. The new owner will not be able to use apps that are on your SD card.
Can I use any SD card, or does it have to be a specific type?
Most phones work with standard microSD cards (the small ones), but check your phone's manual to confirm the type and maximum size your phone supports. Newer phones support larger cards — 128 GB or 256 GB — but older phones may max out at 32 GB or 64 GB. A faster card (marked "Class 10" or "U3") will move apps slightly quicker, but any compatible card will work.