1C Big Keyboard

Big keyboard for fat fingers with big buttons.

1C Wearable · com.onecwearable.keyboard

4.7 out of 5 (3 ratings) 5M+ downloads v1.56 10.3 MB Android 4.0+ PEGI 3 · Everyone

Download APK 10.3 MB All versions

Signature matches the Google Play version Details

Watch the 1C Big Keyboard trailer on YouTube

At a glance

Latest version: v1.56 (81)
Updated: Jul 4, 2026 (3 months ago)
APK size: 10.3 MB
Requires: Android 4.0+ (API 14)
CPU support: ARM 32-bit, ARM 64-bit
Category: Productivity (app)
Listed since: Feb 28, 2021 (at least)
Permissions: 8
Website: 1cwearable.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

1C Big Keyboard is an app by 1C Wearable in the Productivity category, listed since at least February 2021. It includes native code for ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 8 permissions, none of them sensitive. The app offers in-app purchases through Google Play.

What's new in v1.56

Improved custom keys in landscape mode.

Description

From the listing uploaded by “appupdater”.

I am 58 and my vision is far from perfect. I have fingers on my hands - not matchsticks, so I designed this keyboard for myself. If you’re under 35 and have no problems with vision, please do not install. You will need it later. But maybe it will be a good lifehack for your parents now. Eugene Sotnikov, 1C Wearable This ergonomic keyboard for Android allows using 100% of your phone’s screen for big keys making it indispensable on small screen devices and for fat fingers (100% is not an advertising slogan: it is literally 100%). Swipe up to switch into 100% display mode. This big keyboard preserves your vision and reduces eye strain. Big keyboard keys are easier to hit – less typos. The layout of this large keyboard for Android is easy to learn – it’s a QWERTY keyboard smartly compressed into extra large keyboard, what makes it ideal for large hands. MULTILINGUAL TYPING WITH 1C BIG KEYBOARD: english keyboard deutsch tastatur (german keyboard) clavier français (french keyboard) teclado español (spanish keyboard) tastiera italiana (Italian keyboard) русская клавиатура (russian keyboard) казақ пернетақта (kazakh keyboard) dansk tastatur (danish keyboard) nederlandse toetsenbord (netherlands keyboard) srpska тастатура (serbian keyboard) svenska tangentbord (swedish keyboard) teclado português (portuguese keyboard) 한국어 키보드 (korean keyboard) ceská klávesnice (czech keyboard) polski klawiatury (polish keyboard) türkçe klavye (turkish keyboard) українська клавіатура (ukrainian keyboard) беларуская клавіятура (belarusian keyboard) башҡорт клавиатура (bashkir keyboard) татар клавиатура (tatar keyboard) lietuvos klaviatūra (lithuanian keyboard) latvijas tastatūra (latvian keyboard) magyar billentyűzet (hungarian keyboard) eesti klaviatuuri (estonian keyboard) azərbaycan klaviatura (azerbaijan keyboard) türkmen klawiatura (turkmen keyboard) клавиатураи тоҷикӣ (tajik keyboard) tastatură română (romanian keyboard) ქართული კლავიატურა (georgian keyboard) հայերեն ստեղնաշար (armenian keyboard) кыргыз клавиатура (kyrgyz keyboard) اردو کی بورڈ (urdu keyboard) ελληνικό πληκτρολόγιο (greek keyboard) แป้นพิมพ์ภาษาไทย (thai keyboard) מקלדת עברית (hebrew keyboard) لوحة المفاتيح العربية (arabic keyboard) हिंदी कीबोर्ड (hindi keyboard) गुजराती कीबोर्ड (gujarati keyboard) 日本語 (平仮名) (japanese keyboard) 日本語のキーボード日本漢字 (on'yomi) 日本漢字 (kun'yomi) 中文(繁體)倉頡 (chinese keyboard) 中文(简体)倉頡" 中文(繁體)拼音中文(简体)拼音

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jul 4, 2026.
Certificate issued to “1C Wireless LLC” This is the certificate of the Google Play version.

Store checks and file details

Developer signature not checked yet Jul 4, 2026
Validated against Google Play Jul 4, 2026
Signed byCN=1C Wireless LLC, OU=1C Wireless LLC, O=1C Wireless LLC, L=Moscow, ST=Moscow, C=RU
Signing certificate (SHA-1)40:A3:EA:0F:BA:77:0C:11:18:29:2E:C2:70:4A:9A:F1:CB:2B:A4:65
File MD5f86f7aed3d166bacdaf24f27dbad91d6
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

1C Big Keyboard requests 8 permissions, none of them sensitive.

Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Prevent the device from sleeping android.permission.WAKE_LOCK
Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
Receive push notifications com.google.android.c2dm.permission.RECEIVE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

1C Big Keyboard APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is 1C Big Keyboard free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the 1C Big Keyboard APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is f86f7aed3d166bacdaf24f27dbad91d6.