Posteo vs Trello

Posteo is ad-free with no ads when using their email services.

Posteo supports email clients such as Thunderbird and Claws Mail which will allow for greater control over encryption and user's private keys.

Registration through VPN is allowed and no personal information is required, just a username and password.

Posteo does very well on Dismail's server list and it supports end-to-end encryption with PGP. This can be done in the browser or with an email client, and Posteo has a help section on how to set up encryption.

You can select an option to encrypt inbound email from their server with a user-provided GPG key.

You can select an option to encrypt all of your emails stored on their servers.

You can easily and automatically create a stand-alone webpage for every single event. Add all the details for the event, then share the event page link with anyone who needs to help/be part of it. You can use comments to discuss details on the event page. Easy, free, makes it easy to collaborate on individual tasks or projects without a big setup.

Integrate schedule with your task management --- because if you don't know when you're going to do it, are you ever going to?

Boot-strapped company, run by the original founders/developers, fully committed to supporting and improving the product over time. Over 3 million users currently

Works well for individual/personal work, free plan is more than adequate for this or for running a small business. Easy to scale if needed, paid plans available.

For both iOS and Android. Free, fully functional.