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.
Spacedoo - Short actionable marketing hacks
Slack - A messaging app for teams who see through the Earth!
Top of the Lyne - Growth strategies and the weekly news from the best product-led SaaS companies (Figma, Calendly, Notion, and more) for founders and growth leaders!
GrowthList - A crowd-sourced list of growth hacks
TweetFavy - The Growth Hacking Tool for Twitter. Marketing automation software / Growth Hacking tool designed to grow your social media influence and attract real, targeted and engaged Twitter followers.