Download of letterin 1.0 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular version among the software users is 1.0. The actual developer of the free software is Ihsan biz.
The program's installer file is generally known as LETTERIN.EXE. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. Letterin belongs to Games.
From the developer:
Make new words by inserting letters from a source word. One source word and a set of target words are given. Insert one or more letters from the source word into a target word. The new new word made must be a valid word. Puzzle is completed when all letters from the source word have been used.
You may want to check out more software, such as anagram, Fruit Fall or CryptoPics, which might be related to letterin.