Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Influitive - Influitive helps companies increase customer lifetime value and accelerate sales with the power of their own customer advocates. Inspire your customers to stay longer, share their experiences, and attract new business.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.