1C Big Keyboard

Everyone

Digital Purchases

Want to try a new sensation from this trending app? Go ahead and get 1C Big Keyboard created by mastermind Mahjong Brain Puzzles instantly. Check out Productivity for complete info.

Direct Access To The Platform 1C Big Keyboard

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.

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.

Lifehack for seniors

Updated on

Aug 13, 2026

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.

This app may share these data types with third parties
Location and Device or other IDs
This app may collect these data types
Location
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

23.6K reviews

A Google user

April 10, 2019

A must for us cursed with hammer thumbs. Wide keys (not merely tall) and the option to make the letters blaze orange if you like (if you have failing eyesight to go with your hammer thumbs). The ads are annoying, but then again, they're supposed to be. 10 bucks is steep, the devs know this, which is why they allow you to 'rent' it at 2 dollars for 3 months. The typing speed is a wee-bit sluggish, and some symbols are missing (like dollar signs). Yet, I've never texted quicker

207 people found this review helpful

A Google user

April 15, 2020

I liked this app at first, but lm extremely disappointed ln their failure to fix some of the obvious shortcomings. One, seen above, is that it doesn't recognize contractions, so you have to go to the 123 screen to insert an apostrophe. The worst, though, is that if you enter "i", it autocorrects to "it", rather than "I". That is totally idiotic programming!

429 people found this review helpful

Mahjong Brain Puzzles

May 1, 2019

Sometimes it is happens. Please try: 1) Open settings (long press on SPACE and then chose GEAR icon) 2) In case in settings still appear TURN OFF ADDS – press it (you will not be billed once more – it will help to reinstall your purchase in Google store.) 3) In case it will not help please write to us – we will find a way to solve your problem.

Louis Hazard

January 27, 2022

Enjoy this keyboard, but hesitant to use it more often. Dictionary and predictive spelling not up to snuff for my daily use. Other keyboards do a much better job, with more mistakes on my part (due to smaller keys) , of suggesting what they think I meant. Because of this, I dont use it enough to warrant paying to remove ads. One ad a day currently meets my usage. Favorite feature is the customization available for the keyboard.

74 people found this review helpful