Big Font (change font size)

Contains adsIn-app purchases
22K reviews
Content rating
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About this app

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 25% (smaller) to 500% (bigger).

★ change display zoom ratio on Android 7.0 or greater devices
★ change system text to bold or thin on Android 12.0 or greater devices
★ turns your device into a magnifying glass by using camera zoom, auto-focus, and LED flash
★ 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 by tapping the notification
★ customized the font size scale value

• CAMERA: used for the magnifier function
• WRITE_SETTINGS: change the font size, prevent the screen rotation during the automatic function

You can upgrade to the PRO version by purchasing a PRO license from Google Play. PRO version adds the following additional features:
★ no ads
★ unlimited font scaling values
★ unlimited zoom ratio values
★ unlimited font weight values
★ 251% or above 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 into your native language, please let me know. Thanks.

Arabic - Ibrahim almamo
Danish - Christian Stangegaard Kappelgaard
Dutch - Niko Strijbol
French - Alex...
German - Michel Müller
Italian - Michele Mondelli
Japanese - Yuanpo Chang
Polish - Dawid Zieliński
Portuguese brazilian - Wagner Santos
Russian - Идрис a.k.a. Мансур (IDris a.k.a. MANsur), Ghost-Unit
Spanish - Tomás de la Puente López
Tagalog - Angelo Laus
Turkish - Kutay KuFTi
Vietnamese - Nguyễn Trung Hậus
Updated on
Jul 7, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

19.7K reviews
Sig Sorensen
May 20, 2024
After a brief test of several of these, i really liked this app. Had to manually go in and change permissions to allow it to change system settings. However, really like the one time $3.50 purchase option. And it does what i want which is a widget that allows you to switch back and forth between 100% and a font size of your choice. This is helpful for me because I have a harder time at night.
2 people found this review helpful
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Greg Searle
December 17, 2021
Does what it says very well. Allows you to change system font size beyond what is available through the Settings app. ADVANCED: If you have ADB, you can also use this app to change the system zoom ratio (requires WRITE_SECURE_SETTINGS permission). My new Samsung would only zoom down to 88%. I wanted to set it 75%, and this app did it. This setting is system-level, so it's permanent and survives restart. You don't need to keep the app notification active. ADS: interstitial pop-up ads. Buy it!
103 people found this review helpful
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Sam Sterling