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wyDay — premium software development tools for high-tech companies

We make software development, deployment, maintenance, licensing, and license management easier with our high quality products.


LimeLM lets you earn more revenue with our fast, accurate, and secure licensing.

With LimeLM you can offer trials, track conversions, and sell your app in many ways (perpetually, as SaaS, on a per-site basis, etc.)

LimeLM works on Windows, macOS, Linux, and BSD and works with every programming language.


Use wyBuild to make update patches and get them to your users fast.

Using the open source updater, wyUpdate, you can update your Windows app no matter what programming language you use.

wyBuild simplifies the entire updating experience.

Trusted by thousands of companies world-wide

wyDay products are trusted by organizations small and large all over the world

3MSiemensIATASocial Security AdministrationMitsubishiUbisoftSamsungEmerson ElectriccienaCBSSupermicroU.S. ArmyGoProHomeland SecurityIntuitAviraricoh

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Latest from wyDay blog

Minor price increases for LimeLM (to match inflation) and details of changes for a stricter and more secure web API.

Read the full article »

TurboActivate and TurboFloat now fully support the new "Apple Silicon". In other words we have universal builds that work natively on all macOS machines.

Read the full article »