The phrase "allows users to design" is correct and usable in written English.
You can use it when describing a feature of a software application or tool that enables users to create or customize something.
Example: "The new graphic design software allows users to design their own logos with ease."
Alternatives: "enables users to create" or "permits users to develop".
Open-source software allows users to design, build, distribute, and support their own programs no manufacturer required.
MailChimp's software allows users to "design, send and share newsletter templates", and it integrates with Google Analytics so that users can monitor the performance of their newsletters.
Another startup, called InvisibleBoyfriend, allows users "to design and build a believable social partner who is everything you want and is always available to talk, whenever you want".
This programming environment allows users to design synchronous and asynchronous parallel iterative algorithms as well.
Cafepress, an e-commerce firm that allows users to design images and write phrases, then have them stamped on products like T-shirts, coffee mugs, stickers and buttons, has reported a boom in the sale of bailout-related merchandise.
Clickteam makes software for Windows, including Multimedia Fusion and an older program called The Games Factory that allows users to design their own arcade and adventure games, screen savers and multimedia projects.
The result page gives complete information of SSR motif, 250 bp left and right flanking sequences that allows user to design locus specific primers.
The Bug would allow users to design their own electronics and customize them however they want.
Some video games are accompanied with supplementary computer graphics applications which allow users to design their own game levels (scenes).
In 1999, Emerson discovered Homestead, one of the first free applications that allowed users to design Web pages without learning how to code.
Designing your avatar: DAZ 3D's MogBox will allow users to design an avatar inside 3-D modeling software and then transfer the character to virtual worlds.
