Subliminal Message Pro is an app that puts subliminal messages on your screen. It comes with a variety of messages already loaded, but you can delete those and write your own. The messages are shown in black, in a rather big font. By default, they are shown every 10 seconds but you can change this all the way to two seconds or thirty seconds. From the main window, you can also set the app to display the messages in order or at random and change the color of your messages.
Some of the built-in messages are: "You feel strong", "You eat nutritious meals", "You sleep well", "You make more money than you need", and "You share your money with others". They are arranged into different categories, such as Health, Wealth, Happiness, etc. I can't really say if the subliminal messages work. All I can say is that this app does. You see the messages for a very short time at the specified intervals. I haven't been able to read one, even knowing the messages are there and trying hard to read them. But they say your mind can process them even when you don't see them.
If you want to purchase the application, you first have to download it and click on the "Support CsOM" button, which takes you to a website where you can donate a minimum of 10 US dollars to get a registration number.