I love this minimalist calendar! Its very snappy, intuitive and simple, and I appreciate its emphasis on ease of use and instant cloud synching. The fact that it is universal makes this app even better than the original Calvetica app.
It would be nice to have some very basic color customization options, so we could decide to change it from black and white to any other two colors as the mood strikes, but I can definitely live without it.
The biggest weak point right now is just the app icon. It doesnt convey the iconic visual simplicity of the app.
To wrap up, this app is great for those who appreciate simple design and ease of use. It may not be perfect (in addition to the observations above, there are minor UI issues and its just a little buggy) but its still a very, very good app.
Vain Enthusiast about Tempus Calendar