A lightweight, simple structured NoSQL database for Android.
Particle systems are often used in games for a wide range of purposes: Explosions, fire, smoke, etc. This effects can also be used on normal apps to add an element of "juiciness" or Playful Design.
Precisely because its main use is games, all engines have support for particle systems, but there is no such thing for standard Android UI.
This means that if you are building an Android app and you want a particle system, you have to include a graphics engine and use OpenGL -which is quite an overkill- or you have to implement it yourself.
Leonids is made to fill this gap, bringing particle sytems to developers that use the standard Android UI.
Evernote and Google Keep has started providing some basic features like notes, a few basic filters, and more important, these features were extremely fast at the major smartphones. As the time gone by, these apps has involved and its features became complex and started to showing delays, losing its initial differential. The Nouse's proposal its to renew that experience by a very simple note app.