Blinkist lets you learn new stuff in two minute reading pauses
Each blink takes no longer than two minutes to read, which, according to the developers, is enough to get you on the learning path even if you are on the famously strict German schedule. Each blink is hand-written and curated by a team of "true field experts". The app's inventors proudly claim "no algorithms - pure human brainpower!", along with a "passion for explaining complex matters in a simple and beautiful language".
Does this sound like your cup of tea? You can try Blinkist for free, and subscribe on a monthly, quarterly, or yearly period. The app is already gaining traction, so give it a test drive if you are interested.