Location History Visualizer - Visualize Google location history data on a heatmap 🗺️
Readwise - Effortlessly rediscover and organize your Kindle highlights
Conquer.Earth - Share a map marked with every place you've ever visited
Knotes - An efficient, beautiful Kindle highlights & notes manager
Location Diary - Decentralized personal location tracker
Clippings.io - Organize the notes you make on your Kindle