UI/UX design · Typography

Best fonts
for mobile apps

For most apps the best fonts are the system fonts — San Francisco on iOS and Roboto on Android — because they're legible, support Dynamic Type and add nothing to app size. For a branded look, open-source UI families like Inter work well. For Indian languages, use script-specific families such as Noto Sans Devanagari, Mukta or Hind, paired with a Latin font of similar weight.

By , FounderUpdated 3 min read

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Quick answer: What are the best fonts for mobile apps?

  1. Default — system fonts: San Francisco (iOS), Roboto (Android).
  2. Branded UI — Inter and similar open-source UI families.
  3. Indian scripts — Noto Sans Devanagari, Mukta, Hind and script-specific families.
  4. Pairing — match x-height and weight between Latin and Indic fonts.
  5. Accessibility — support Dynamic Type and large text sizes.

Key takeaways

  • Readability beats personality for body and UI text.
  • Custom fonts add app size and can break large-text accessibility if not handled.
  • Use a brand font for headings and a system font for body text when in doubt.
  • Test fonts with real content in every language you support.
  • A clear type scale matters more than the specific font.

Typography is most of what people see in an app. Labels, buttons, prices, messages — it's text, everywhere, at small sizes, on phones in bright sunlight. The best app font is rarely the most distinctive one. It's the one people can read effortlessly at 13 points in a moving auto-rickshaw, in English and in their own language.

What are the best fonts for mobile apps? At a glance: Default; Branded UI; Indian scripts; Pairing; Accessibility.
At a glance: What are the best fonts for mobile apps?

Start with system fonts

Platform system fonts for apps
PlatformSystem fontWhy it's a strong default
iOS / iPadOSSan Francisco (SF Pro)1Optimised for Apple screens; Dynamic Type built in2
AndroidRoboto (and device fonts)Central to Material Design typography3

System fonts add nothing to app size, match the platform's look, and scale with users' text-size settings.

Strong open-source choices for branded UI

Strong open-source choices for branded UI: Inter; Roboto; Poppins and geometric fonts; Noto.
Strong open-source choices for branded UI

Inter

Designed for user interfaces, with excellent legibility at small sizes and many weights5.

Roboto

Neutral, widely supported, works well beyond Android.

Poppins and geometric fonts

Popular for headings; check legibility of body text at small sizes.

Noto

A huge family covering many scripts with consistent design4.

Indian scripts

Fonts for Indian-language apps
ScriptFonts to considerCheck for
Devanagari (Hindi, Marathi)Noto Sans Devanagari, Mukta, HindConjuncts, matra placement, line height
Bengali, Tamil, Telugu, Kannada, Malayalam, GujaratiNoto Sans families for each scriptCorrect shaping and vertical metrics
Mixed English + IndicPair a Latin UI font with an Indic family of similar weightMatching x-height and visual weight

Build a type scale

Diagram of 5 steps for build a type scale: 1. Choose a body size (around 16–17) and a ratio.; 2. Define 5–7 styles: display, title, heading, body, body-small…; 3. Set line heights; 4. Limit weights to two or three.; 5. Map styles to platform text styles so Dynamic Type and font scaling work..
Build a type scale
  1. Choose a body size (around 16–17) and a ratio.
  2. Define 5–7 styles: display, title, heading, body, body-small, label, caption.
  3. Set line heights — larger for body text and Indic scripts.
  4. Limit weights to two or three.
  5. Map styles to platform text styles so Dynamic Type and font scaling work.

Accessibility

Checklist: Accessibility — Support users' larger text settings; WCAG expects text to resize up to 200% without loss of content; Avoid very light weights for body text; Keep sufficient contrast; Don't use all caps for long text.
Accessibility
  • Support users' larger text settings; WCAG expects text to resize up to 200% without loss of content6
  • Avoid very light weights for body text
  • Keep sufficient contrast — see the accessibility checklist
  • Don't use all caps for long text

For how typography fits the new platform looks, see app design trends for 2027.

Key terms, defined

System font — the default font provided by the operating system. Dynamic Type — iOS's user-adjustable text sizing. Type scale — a set of predefined text sizes and styles. x-height — the height of lowercase letters. Conjunct — a combined character in Indic scripts.

Frequently asked questions

What font does iOS use?

iOS uses San Francisco (SF Pro and related families) as its system font. Apple provides it for designing Apple-platform apps, and it supports Dynamic Type for user-chosen text sizes.

What font does Android use?

Roboto has long been Android's default system font and is central to Material Design. Many Android phones also use manufacturer fonts, so test on real devices.

What is the best Google Font for apps?

Inter and Roboto are excellent for UI text. Poppins and similar geometric fonts are popular for headings. Choose for legibility at small sizes and the weights you need.

Which fonts are best for Hindi and other Indian languages?

Families designed for Indian scripts, such as Noto Sans Devanagari, Mukta and Hind for Devanagari, and Noto families for other scripts. Check conjunct rendering and line height with real text.

How many fonts should an app use?

Usually one or two families — one is often enough with a few weights. More fonts add load time and visual noise.

What font size should mobile body text be?

Platform defaults are a good starting point: around 17 points for iOS body text and 14–16 sp on Android. Always support the user's larger text settings.

Sources

  1. Apple — Fonts for Apple platforms
  2. Apple — Human Interface Guidelines: Typography
  3. Google — Material Design 3 typography
  4. Google Fonts — Noto
  5. Rasmus Andersson — Inter typeface
  6. W3C — Understanding resize text (WCAG)
  7. Checked October 23, 2026. Figures that change — fees, salaries, prices — are reviewed every six months; if something is out of date, tell us.
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