Maian Cube is described as 'These days a lot of people want to sell their products online, but the million dollar question is, how do you protect your investment and prevent unauthorised copying or code theft? The answer for many lies in the superb and widely respected ionCube® license system'. There are more than 10 alternatives to Maian Cube for a variety of platforms, including Windows, Linux, Online / Web-based, Mac and SaaS. The best alternative is Labs64 NetLicensing, which is free. Other great apps like Maian Cube are 10Duke Entitlements (Paid), LockBytes (Paid), CryptoLicensing For .Net (Paid) and SafeNet (Paid).
AntiDuplicate is a software developer's kit that allows to create application protection dongles from USB sticks. AntiDuplicate supports unique additional features, one of them is USB drive read-only mode at the hardware level.