New statistics show that more devices are using Android KitKat than ever before, but that the percentage of Android users employing the latest version still lags far behind those using Apple's iOS.

According to the latest data from Google, 8.5 percent of Android users run Android 4.4 KitKat. The most popular version of Android is still Android 4.1.x Jelly Bean with 33.5 percent, followed by Android 4.2.x at 18.8 percent, and Android 2.3.3-2.3.7 Gingerbread with 16.2 percent. Android 4.0.3-4.0.4 Ice Cream Sandwich comes in at fourth place with 13.4 percent, and Android 4.3 Jelly Bean ties KitKat with 8.5 percent for fifth place.

KitKat's share in May represents a jump of 3.2 percentage points from the 5.3 percent in April and an even greater increase from the 2.5 percent in March.

The percentages are based off data collected during a seven-day period ending on May 1, 2014 about Google Play Store app access. Remember, the percentages are intended to show the "relative number of devices running a given version of the Android platform."

Apple, on the other hand, has had far more success in disseminating the latest version of its mobile operating system, iOS 7. According to Apple, 88 percent of iOS devices are running iOS 7 based on App Store access. Once again, the numbers come from a seven-day period, although this time ending May 4.

Overall, however, Android, all versions included, dominates iOS in both smartphone and tablet markets. A recent Strategy Analytics report shows that Android won 65 percent of the global tablet market in Q1 2014.

"We believe that the disappointing performance in the early part of the calendar year is because Apple has changed its product release cycle to the holiday timeframe," director of tablets at Strategy Analytics Peter King writes.

"iOS will likely lose share over the next several months to refreshed Android products, but we believe Apple will win back meaningful high-end market share during the final months of the calendar year."

Smartphone-wise, Android has around 50 percent of the U.S. market, with Apple a close second at around 40 percent, according to comScore data. Internationally, however, Android's lead grows even larger. In South American countries, Android has captured up to, and even more than, 80 percent market share.

"We expect Android's growth to slow further in 2014 due to market saturation, and rivals like Microsoft or Firefox will be ready to pounce on any signs of a major slowdown for Android this year," reads a Strategy Analytics report on 2013's smartphone market.