Tweedle App - Notion is nice but sometimes all you need is an app like Tweedle.
AfterShip - AfterShip is the shipment tracking API for ecommerce businesses and marketplaces.
Plume - App for writing documents, scripts, books and more.
Cabubble - Taxi and minicab quotes for London, Birmingham, Manchester and throughout the UK. Book a licensed taxi or minicab online via website or mobile app.
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
OnTime 360 - Cloud-based courier software with online order entry, route optimization, and dynamic tracking. The complete delivery software solution.