Big Font Privacy Policy
For the Android app “Big Font - Change Font Size” (A+ Big Font), package com.lambdafont.bigfont, by Hoanio Studio.
In short
- Text that Read screen reads, photos of papers, your family contacts and medicine notes stay on your phone. We never receive them.
- Each permission is asked only when you open the tool that needs it, and every one except “Modify system settings” is optional.
- Google services in the app collect some device information to show ads and to report crashes and usage statistics.
- We don't sell personal information. There are no accounts.
1. What stays on your phone
The following is created and kept only on your device. It is not sent to us or to any other company by Big Font:
- Screen text read by Read screen. It is read aloud by your phone's own text-to-speech voice and then discarded.
- Photos of papers and the text recognised from them. Recognition runs on the phone (Google ML Kit on-device). The last 10 papers are kept so you can read them again, and they are excluded from Android backups.
- Magnifier camera images, which are shown live and not saved.
- Family contacts you add: the name, phone number and photo of each person you pick. Big Font uses Android's contact picker, so it only receives the contacts you choose — never your whole address book.
- Medicine reminders: times, notes, pill photos and voice notes.
- Settings such as theme, reading speed and your chosen tools.
2. Permissions and why they're used
| Permission | Used for | Required? |
|---|---|---|
| Modify system settings | Changing the phone's text size | For the main feature |
| Accessibility service | Read screen (see section 3) | Optional |
| Camera | Magnifier and Read paper | Optional |
| Phone calls | One-tap calls in Call family; without it the dial pad opens | Optional |
| Exact alarms, run at start-up, wake lock | Ringing medicine reminders on time, also after a restart | Optional |
| Notifications, foreground service | The text-size notification and the flashlight | Optional |
| Internet, network state | Ads, crash reports, statistics and the Social tab | Automatic |
| Billing | The one-time Pro purchase | Only if you buy |
| Advertising ID | Ads (added by Google Mobile Ads) | Automatic; you can delete it |
3. Accessibility service disclosure
Big Font includes an Android accessibility service that powers Read screen, a tool for people who have difficulty reading small text. Before it is turned on, the app explains what it does and asks for your agreement.
- What it accesses: the text shown in the app in front of you, up to 6,000 characters, and only at the moment you tap the Read button. It also draws the Read button and reading panel over other apps.
- What it does with it: shows the text large and reads it aloud on your device.
- What it never does: it does not store, log, upload or share screen content; it does not use it for ads or analytics; it does not run in the background, perform actions for you or read passwords you type.
- How to turn it off: SettingsAccessibilityA+ Big Font.
4. Information collected by Google services
| Service | Purpose | Information |
|---|---|---|
| Google Mobile Ads (AdMob) | Showing ads | Advertising ID, approximate location from IP address, ad interactions, device and diagnostic information |
| Google Analytics for Firebase | Understanding which features are used | App instance ID, device model and Android version, and events such as which tool was opened, the text size applied, permission results and reminder actions. Never names, phone numbers, notes, papers or screen text. |
| Firebase Crashlytics | Fixing crashes | Crash logs, device model, Android and app version |
| Google Play Billing | The Pro purchase | Purchase status. Payment is handled by Google; we never see card details. |
Google's handling of this information is described in the Google Privacy Policy and How Google uses information from sites or apps that use its services.
5. Other apps and websites you choose to open
- Social tab: sites such as Facebook or Messenger open in a big-text browser inside Big Font. Those sites apply their own privacy policies and cookies.
- Video calls open WhatsApp, Zalo, Telegram or Viber.
- Open in Google Lens hands the chosen photo to the Google Lens app.
- Voice notes in Medicine use your phone's speech-recognition service, which may process speech according to its provider's policy.
6. Advertising choices
You can delete or reset your advertising ID and limit personalised ads in SettingsPrivacyAds (on some phones SettingsGoogleAds). Buying Pro removes ads completely.
7. Children
Big Font is made for a general audience and is not directed at children under 13. We don't knowingly collect personal information from children.
8. Keeping and deleting data
Data on your phone is deleted when you clear Big Font's storage or uninstall it. Analytics data is kept by Google for a limited period and then deleted automatically. To ask us to delete analytics data linked to your device, email support@hoanio.com.
9. Security
Google services send information over encrypted connections (HTTPS). Content that stays on your phone is protected by Android's app sandbox.
10. Changes
We'll update the date at the top when this policy changes, and mention important changes in the app's release notes.
11. Contact
Hoanio Studio · support@hoanio.com · hoanio.com
See also the Hoanio Studio privacy policy for our other apps and websites.