Normally when you tap and hold on specific keys on the iOS keyboard, you will be presented with alternative or variant characters that you can input instead of the main character itself. For example, characters like Ñ, É, Á, Ü, and more can be accessed on the iOS keyboard by tapping and holding on the correct letters: N, E, A, U respectively. This also includes tapping and holding on certain symbols on the symbol keyboard to reveal alternative symbols such as ¢, ¿, and more.
A new jailbreak tweak called DedupeVariants
by iOS developer Lance Fetters (ashikase) will remove redundant characters and/or symbols from the alternative/variant keys so that when you tap and hold on specific keys on the keyboard, the regular character and/or symbol will no longer appear in the alternative/variant character menu, as shown above.
With the tweak installed, you will be able to just tap and hold and then release on the keyboard key to input the first alternative/variant character instead of the regular character. Normally, you would need to swipe your finger up and over to the alternative/variant character to input it because just tapping and holding, then releasing would input the regular character.
Since the tweak can only input the first alternative/variant character in this way, it will still be necessary to swipe if you want to input any of the additional alternative/variant characters that appear in the list. For example, in the screenshot above with the tweak installed, you would be able to just tap and hold and release to input the Ñ character, but to input the other N character with the accent over it, you would need to swipe over to it and then release your finger.
If you would like to give DedupeVariants a try, it's available in Cydia's BigBoss repository right now for free.
iPhone 5 running iOS 7.0.6
Lance Fetters (ashikase)
You can watch our video review of DedupeVariants below: