Yes, you can change fonts on your iPhone in two main ways

You can change the font that appears across your iPhone's system in Settings, though Apple limits you to a handful of built-in options. You can also change fonts within individual apps like Notes, Mail, and Messages, and some third-party apps let you pick from dozens of typefaces. The system-wide change affects menus, notifications, and most text you see; the app-level change affects only what you type or read in that one app.

The built-in system fonts work on all iPhones running iOS 16 or later. If you have an older iPhone, you cannot change the system font through Settings, but you can still change fonts inside individual apps.

Key Takeaways

  • System-wide font changes in Settings only work on iPhone running iOS 16 or later and offer a limited set of Apple-designed typefaces.
  • To change the system font, go to Settings, tap Display & Brightness, then Text Size, and select a font name at the bottom of that screen.
  • Individual apps like Notes, Mail, and Messages have their own font menus inside the app, separate from the system setting.
  • Third-party apps often include font options in their own settings, but these changes do not affect the rest of your iPhone.

How to change the system font in Settings

Open Settings and tap Display & Brightness. Scroll down and tap Text Size. At the bottom of that screen, you will see a row of font names: tap the one you want. Your choice takes effect when ready across your iPhone's menus, notifications, and most system text.

Apple offers these fonts: SF Pro (the default), New York, Georgia, and Menlo. SF Pro is a clean, modern sans-serif; New York is a serif font with a traditional look; Georgia is a serif font designed for screens; Menlo is a monospace font (each letter takes the same width) used mainly by developers. You can switch between them at any time, and your iPhone remembers your choice even after a restart.

This setting does not change fonts inside apps like Messages or Mail — those apps have their own font controls. It also does not change the font on your lock screen or home screen labels, which stay in SF Pro.

Changing fonts in Notes

Open Notes and create a new note or open an existing one. Tap the three dots in the top right corner, then tap Text. You will see options for font style (Handwriting, Monospaced, or Serif), text size, and color. Choose your font and tap outside the menu to close it. The change applies only to new text you type in that note.

If you want to change the font of text you have already written, select that text first (tap and hold, then drag to highlight), then tap the three dots and choose Text. The font menu will explore your choice only to the selected text, not the whole note.

Changing fonts in Mail

Open Mail and start composing a new message. Tap the three dots in the bottom toolbar, then tap Aa (the text formatting button). You will see options for font, size, and color. Tap the font name to see your choices: Helvetica, Courier, Times New Roman, or Palatino. Select one and continue typing. Your choice applies only to that message.

If you want to change the font of text you have already typed in the message, select that text first, then tap the Aa button and choose a new font. Mail does not have a default font setting that carries over to all future messages — you set the font fresh each time you compose.

Changing fonts in Messages

Open Messages and start a new conversation or open an existing thread. Tap the + button next to the text field (or the arrow icon, depending on your iOS version), then look for Handwriting or Memoji options. These let you send text in a handwritten style or as an emoji character, but they are not traditional font changes.

Messages itself does not have a built-in font picker for regular text. The font you see is determined by the system font you chose in Settings. If you want to send text in a different style, you can use the Handwriting feature or type your message in Notes with a different font, then copy and paste it into Messages.

Using fonts in third-party apps

Many third-party apps — including writing apps, note-taking apps, and social media apps — include their own font menus. Open the app, look for a settings icon (usually a gear or three horizontal lines), and search for "font" or "text" options. Some apps let you choose from 20 or more typefaces; others offer just a few.

Font changes in third-party apps affect only what you see and type inside that app. They do not change fonts anywhere else on your iPhone. If an app does not have a visible font menu, it may not support font changes, or the option might be hidden in a less obvious place like a long-press menu or a formatting toolbar.

Common mistakes to avoid

Do not confuse text size with font. The Text Size setting in Display & Brightness changes how large the text appears; the font name changes the typeface itself. You can adjust both independently — a large Georgia font looks different from a large SF Pro font.

Do not expect app fonts to match your system font. If you set your system font to Georgia but open Notes and choose Serif, Notes will show Serif, not Georgia. Each app controls its own font separately. Also, remember that changing a font in one app does not change it in another — you have to set the font in each app where you want it.

If you have an iPhone older than iOS 16, you will not see a font option in the Text Size menu. In that case, you can only change fonts inside individual apps, not system-wide.

Frequently Asked Questions

Can I read new fonts to my iPhone?

Not directly through Settings. Apple does not allow you to install custom fonts system-wide. However, some apps like Procreate, Adobe Creative Cloud, and certain note-taking apps let you read and use additional fonts within that app only. The fonts work only inside that app and do not appear in your system font list.

Will changing my font affect how others see my messages?

No. When you send a text message or email, the recipient sees it in their own default font, not yours. Font changes are local to your device. The only exception is if you send a photo of text or use a special feature like Handwriting in Messages, which the other person will see as you created it.

What if I change the system font and it looks wrong?

Go back to Settings, tap Display & Brightness, then Text Size, and choose a different font. You can switch as many times as you want with no penalty. If you want to return to the original, select SF Pro, which is Apple's default typeface.

Can I change fonts on my lock screen or home screen?

No. Your lock screen and home screen app labels always use SF Pro, regardless of what system font you choose in Settings. The font setting only affects text in menus, notifications, and inside apps.

Do I need to restart my iPhone after changing a font?

No. Font changes take effect when ready. You do not need to restart your device or close and reopen apps.