A simple list of tasks. Registration is not required. As you enter, your page is created, the address of which can be sent by mail. Also the address appears in the QR code, so you can easily transfer it to your smart-phone. The list can be downloaded in SCV or Excel format. It is most convenient to use the list online, it is important to take the address, otherwise it Can not be restored.Knowing the address, anyone can edit it. So you can keep lists together. Quite simply and quickly.
Remember the MilkOne of the most functional services for storing lists of cases. There is a Russian language and API. For each task, you can set its priority, access level. The task can be accompanied by a label and text notes.