Big Font (change font size/display size) for Android

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Key Details of Big Font (change font size/display size)

Does the default system font look too small or too large?
Last updated on March 25, 2025
There have been 4 updates
Virus scan status:
Clean (it’s extremely likely that this software program is clean)

Developer’s Description

By CrucialSoft

Does the default system font look too small or too large?

Does the default system font look too small or too large? Do you want to globally change the text size?

This app allows you to scale system font size from 20% (smaller) to 1000% (bigger).

*** Over 3,000,000 Downloads! ***

FEATURES

change display zoom ratio on Android 7.0 or greater devices

turns your device into a magnifying glass by using camera zoom, auto-focus and LED flash

working for Android 2.3 and greater devices

scale system font size from 20% to 1000%

preview the scaled text before applying

show a notification icon describing the current font size. An option is also provided to hide it

switch system font size via tapping the notification

customized the font size scale value

Android 4+ only provides 3 scaling values, we provide more

for Android 2.3~3.x users. You can add "not working" apps into the ignored apps list

PERMISSIONS

- CAMERA: used for the magnifier function

- BIND_ACCESSIBILITY_SERVICE: this app uses Accessibility services to automate the function (e.g. change display size), optional. It helps those who have difficulty in tapping and complete the task easier

- WRITE_SETTINGS: change the font size, prevent the screen rotation during the automatic function

- SYSTEM_ALERT_WINDOW: draw a wait screen above other apps during the automatic function

PRO VERSION

You can upgrade to PRO version by purchasing a PRO license from Google Play. PRO version adds the following additional features:

no ads

unlimited font scaling values

251%~1000% font size

We have been selected as a Google I/O 2011 Developer Sandbox partner, for its innovative design and advanced technology.

If you are interested in helping us to translate this app to your native language, please let me know. Thanks.

Credits:

Arabic - Ibrahim almamo

Danish - Christian Stangegaard Kappelgaard

Dutch - Niko Strijbol

French - Alex...

German - Michel Muller

Italian - Michele Mondelli

Japanese - Yuanpo Chang

Polish - Dawid Zielinski

Portuguese brazilian - Wagner Santos

Russian - a.k.a. (IDris a.k.a. MANsur), Ghost-Unit

Spanish - Tomas de la Puente Lopez

Turkish - Kutay KuFTi

Vietnamese - Nguyn Trung Hus