Comparison of Android keyboard apps’ popularity

To help prioritize my work on Firefox for Android’s keyboard and IME bugs, I created this list of popular Android keyboard apps. The Google Play Store does not divulge much information about other company’s apps, but it does reveal rough upper and lower bounds on the number of “Installs” over the last 30 days. For comparison, I have included numbers for popular Android browsers: Chrome, Dolphin, Firefox, and Opera.

I also compiled the number of 4 and 5 star ratings for these apps. I assume that people who like an app enough to write a review and give it 4 or 5 stars are likely to remain active users.

btw, this list does not include the Swype keyboard because it’s not available in the Play Store. Swype is only available bundled on a phone or from the company’s beta program.

Open questions:

  • Why is the GO Keyboard so popular? It supports many languages and themes, but I would imagine that a keyboard designed for the nuances of a particular language would be more popular.
  • Why does the Dolphin browser have so few beta users compared to Firefox and Opera? About 10% of Firefox and Opera users are using beta versions, but only 1% of Dolphin users.
  • Is there a fair way to aggregate numbers for apps that have multiple versions? Many apps have free and paid or stable and beta versions. These populations likely overlap. For example, many users are likely to have installed the trial version of an app before paying for it. Beta users may keep the stable version installed in case they are blocked by a beta bug.
Keyboard Installs (min) Installs (max) 4+5 Star Ratings
* Opera browser 10 M 50 M 219 K
* Opera Next browser 1 M 5 M 34 K
* Chrome browser 10 M 50 M 89 K
* Dolphin browser 10 M 50 M 793 K
* Dolphin Beta browser .1 M .5 M 8 K
* Firefox browser 10 M 50 M 95 K
* Firefox Beta browser 1 M 5 M 19 K
GO Keyboard 10 M 50 M 160 K
Google Korean IME 5 M 10 M 13 K
Smart Keyboard Trial 5 M 10 M 12 K
Smart Keyboard Pro .1 M .5 M 14 K
SlideIT Keyboard Trial 5 M 10 M 21 K
SlideIT Keyboard .5 M 1 M 13 K
A.I.type Keyboard Free 1 M 5 M 3 K
Google Japanese Input 1 M 5 M 6 K
Google Pinyin IME 1 M 5 M 23 K
Keyboard from Android 2.3 1 M 5 M 17 K
MultiLing Keyboard 1 M 5 M 11 K
Simeji Japanese Keyboard 1 M 5 M 15 K
SwiftKey 3 Keyboard 1 M 5 M 77 K
SwiftKey 3 Keyboard Free 1 M 5 M 23 K
TouchPal Keyboard 1 M 5 M 22 K
Hacker’s Keyboard .5 M 1 M 6 K
Perfect Keyboard .5 M 1 M 6 K
Siine Keyboard .5 M 1 M 3 K
OpenWnn Plus .1 M .5 M 1 K
Thumb Keyboard .1 M .5 M 5 K