Default means the program your phone automatically opens when you do something

A default is the program your phone picks on its own when you take an action — without asking you which one you want. If you set Chrome as your default browser, every link you tap opens in Chrome, not Safari or Firefox. If you set Gmail as your default email app, every email address you tap opens Gmail. Your phone remembers that choice and uses it every time, until you change it.

Defaults exist because you do the same things repeatedly. Tapping a link, opening a photo, or sending an email happens dozens of times a day. Without a default, your phone would ask "which app?" every single time. That would be exhausting. Instead, you set it once, and your phone handles the rest.

You can change your defaults whenever you want. If you read a new browser and decide you like it better, you can make it the default. Your old choice doesn't disappear — it just stops being the automatic one.

Key Takeaways

  • A default is the app your phone automatically opens when you tap a link, photo, email address, or other file type, without asking which app you want.
  • Setting a default saves you from choosing the same app over and over for the same task.
  • You can change your default at any time by going to Settings and selecting a different app for that file type.
  • Different file types can have different defaults — your default browser doesn't have to be your default email app.

How defaults work on Android phones

On Android, defaults are tied to file types and actions. Your phone has a default browser, a default email app, a default messaging app, a default camera app, and defaults for opening photos, videos, PDFs, and other files. Each one can be set separately.

When you tap a link in a text message or email, Android checks what you set as your default browser and opens it there. When you tap an email address, it opens your default email app. When you open a photo from your file manager, it uses your default photo viewer. You can have a different default for each type of action.

If you have never set a default, Android may ask you to choose the first time you do something. Once you pick one, that becomes your default until you change it in Settings.

How defaults work on iPhones

iPhones handle defaults differently than Android. For years, Apple didn't let you change defaults at all — Safari was always the browser, Mail was always the email app. Starting with iOS 14, Apple added the ability to change your default browser and default email app, but not much else.

To set a default on iPhone, go to Settings, scroll down to find the app you want to make default (like Chrome or Gmail), and look for a "Default Browser" or "Default Mail App" option. Not every app has this setting — only browsers and email apps do. Other file types still open in Apple's built-in apps.

This is one major difference between iPhones and Android phones. Android gives you far more control over which app opens what. iPhone keeps more control with Apple's own apps.

Why you might want to change your default

You might change your default because you prefer a different app. Maybe you like Chrome better than Safari, or Gmail better than Apple Mail. Maybe you switched to a different messaging app and want that to be the one that opens when someone texts you. Changing the default makes that app your automatic choice.

You might also change your default because you installed a new app and want to try it out. If you read a photo editor, you could set it as your default photo viewer for a week to see if you like it, then switch back if you don't.

Some people change defaults based on what they're doing. A photographer might set a professional photo app as the default, while someone who just wants to look at pictures might use a simpler viewer. You can switch back and forth as often as you want.

How to change your default on Android

Go to Settings and look for "Apps" or "Applications." The exact name depends on your phone brand. Open it and look for "Default Apps" or "App Defaults." You'll see a list of actions — Browser, Email, Messages, Phone, and others. Tap the one you want to change.

Your phone will show you all the apps that can do that job. Tap the one you want to make default. That's it — it's now your default, and your phone will use it automatically from now on.

If you want to change it back later, follow the same steps and pick a different app. There's no penalty for changing your mind.

How to change your default on iPhone

Go to Settings and scroll down until you find the app you want to make default — usually Chrome, Gmail, or another browser or email app. Tap it, then look for "Default Browser App" or "Default Mail App." Tap that setting and choose the app you want.

Not every app will have this option. Apple only lets you change defaults for browsers and email apps. If you want to change which app opens photos or PDFs, you're stuck with Apple's built-in apps.

If you change your mind, go back to the same place in Settings and pick a different app, or switch back to Safari or Mail.

What happens if you don't set a default

If you have never set a default, your phone will ask you to choose the first time you do something. You'll see a menu with all the apps that can handle that action. Pick one, and your phone will remember it as your default from then on.

On some phones, you'll see a checkbox that says "Always use this app" or "Set as default." Check it, and your choice becomes permanent. If you don't check it, your phone will ask again next time.

This is actually useful if you're not sure which app you want yet. You can try different apps a few times before you commit to one as your default.

Frequently Asked Questions

Can I have different defaults for different types of files?

Yes. Your default browser doesn't have to be your default email app. You can set Chrome as your browser and Gmail as your email app, or any other combination. Each file type or action has its own default setting.

What if I change my default and then change my mind?

Go back to Settings, find the app, and change it again. You can switch your defaults as many times as you want. There's no limit to how often you can change them.

Does changing my default delete the old app?

No. Changing your default just means your phone stops automatically opening that app. The app stays on your phone and you can still open it manually whenever you want.

Why does my phone keep asking me to choose an app instead of using my default?

This usually means you didn't actually set a default — you just picked an app one time without checking "always use this app" or "set as default." Go to Settings and officially set your default, and the asking should stop.

Can I set a default for opening photos or documents on iPhone?

Not directly. iPhones only let you change defaults for browsers and email apps. Photos and documents open in Apple's built-in apps. Android phones give you much more control over this.