Moving apps to an SD card frees up your phone's built-in storage
When your phone storage fills up, you can move some apps to an SD card instead of deleting them. Not every app can move — system apps and some others stay on your phone — but many games, social media apps, and utilities will transfer. The process differs slightly between Android phones and iPhones, and older Android versions work differently than newer ones.
Before you start, check whether your phone even has an SD card slot. Most newer iPhones do not have one. Many newer Android phones have removed the slot too, so look at your phone's specs or the manual that came with it. If your phone has a slot, you need an SD card inserted and formatted for your device.
Key Takeaways
- Android phones with SD card slots can move apps through Settings > Apps, selecting an app, and choosing "Move to SD card" if that option appears.
- Not all apps can move — system apps, banking apps, and some games stay on your phone's internal storage no matter what.
- Your SD card must be formatted for your phone before you can move anything to it, which erases any files already on the card.
- If an app stops working after you move it, moving it back to internal storage usually fixes the problem.
- iPhones cannot move apps to external storage at all, so you must delete and reinstall apps or use cloud storage for files instead.
Check your phone model and SD card slot
Open your phone's Settings app and look for "About phone" or "About device" — the exact name varies by manufacturer. Scroll down until you see "Storage" or "Memory" information. This screen tells you how much space you have left and whether an SD card is currently inserted.
If you do not see SD card information on that screen, your phone likely does not have a slot. You can also physically inspect the edge of your phone — an SD card slot is a thin horizontal opening, usually on the side. If you are unsure, search your phone model name plus "SD card slot" online to confirm.
If you have a slot but no SD card yet, you need to buy one. Any standard microSD card works, though faster cards (marked UHS-I or UHS-II) perform better with large apps and games. Insert the card into the slot with the gold contacts facing into the phone, then push gently until it clicks.
Format your SD card on your phone
A new SD card must be formatted for your phone before you can move apps to it. Formatting erases everything on the card, so if you have files on it already, back them up to a computer first.
Go to Settings > Storage (or Storage and USB). You should see your SD card listed. Tap on it, then look for a menu button — usually three dots in the top right corner. Select "Format as internal" or "Format as portable storage." Internal format makes the card part of your phone's main storage; portable format keeps it separate and lets you move files to a computer later.
For moving apps, either format works, but internal format gives you more usable space because the phone treats the card as an extension of built-in storage. The formatting process takes a minute or two and shows a progress bar.
Move individual apps to the SD card on Android
Open Settings and find "Apps" or "process Manager" — the name depends on your phone brand. You will see a list of all installed apps. Tap the app you want to move.
On the app details screen, look for a button that says "Move to SD card" or "Storage." If you see that button, tap it and confirm. The app will transfer, which usually takes a few seconds to a minute depending on the app's size.
If you do not see a "Move to SD card" button, that app cannot move. System apps, banking apps, and many security apps are locked to internal storage for safety reasons. Some games and large apps also refuse to move even though they could. In those cases, your only option is to delete the app if you need space.
Move apps in bulk using developer settings (Android 6 and older)
Older Android phones (version 6 and earlier) sometimes let you move all compatible apps at once. Go to Settings > Developer Options. If you do not see Developer Options, go to Settings > About Phone, find "Build Number," and tap it seven times. Developer Options will then appear in your Settings menu.
In Developer Options, look for "Default Install Location" or "Install Location." Tap it and select "Prefer external storage" or "SD card." This tells your phone to install new apps to the SD card automatically, and it may move existing compatible apps as well.
This method is less common on newer Android versions because Google changed how storage works. If you have Android 7 or newer, the individual app method described above is your only option.
What to do if an app stops working after moving it
Sometimes an app crashes, loads slowly, or refuses to open after you move it to the SD card. This usually means the app was not designed to run from external storage, even though Android let you move it.
Go back to Settings > Apps, find the app, and tap "Move to internal storage" or "Move to phone." The app will transfer back to your phone's built-in storage, and it should work normally again. You have now freed up SD card space for other apps.
If the app still does not work, delete it and reinstall it from the Play Store. A fresh installation often fixes problems that moving caused.
Why iPhones cannot move apps to SD cards
iPhones do not have SD card slots and do not support moving apps to external storage. If your iPhone is running out of space, you have two options: delete apps you do not use regularly, or use cloud storage for photos and documents instead.
To delete an app, press and hold it on your home screen until a menu appears, then select "Remove App" and confirm. To reinstall it later, open the App Store, search for the app, and tap the read button.
For files and photos, use iCloud, Google Drive, OneDrive, or Dropbox. These services store your files in the cloud and only keep a small version on your phone, which saves enormous amounts of space. You can access your files from any device and delete them from your phone without losing them.
Frequently Asked Questions
Will moving an app to my SD card make it slower?
Slightly, but usually not noticeably. SD cards are slower than built-in storage, so apps may take a fraction of a second longer to open. For most apps this is not noticeable. Games and apps that load large files might feel slower. If speed matters, move only apps you do not use often.
Can I move my photos and videos to the SD card instead of apps?
Yes, and this is often a better use of SD card space. Go to your camera or gallery app, look for settings, and change the storage location to SD card. New photos and videos will save there automatically. You can also move existing photos by selecting them and choosing "Move" from the menu.
What happens if I remove the SD card while an app is running?
The app will crash or freeze. Always close apps before removing your SD card. If you remove it by accident, reinsert it and restart your phone. The app should work again once the card is recognized.
Do I need to format the SD card every time I use it in a different phone?
Yes. Each phone formats SD cards differently, so a card formatted for one phone may not work properly in another. When you move the card to a new phone, go to Settings > Storage, find the card, and format it again. This erases everything on it, so back up any files first.
Can I move system apps or the Play Store to my SD card?
No. System apps and core Google apps like the Play Store, Gmail, and Maps are locked to internal storage. You cannot move them, and attempting to do so through unofficial methods can damage your phone. Focus on moving games, social media apps, and utilities instead.