Study games for your phone

Make the study option as quick to open as the scroll option. ZykoStudy runs in the browser, so there's nothing to download: open the site, pick a set, and you're in a game in a few seconds. Bookmark it to your home screen and it sits next to the apps you'd otherwise open on autopilot.

The difference is what you have when you put the phone down. A few minutes of scrolling leaves nothing behind. A few minutes of answering questions from memory is retrieval practice, and it adds XP and keeps your daily streak going.

Plenty of the games are short on purpose. StudySpin and Archery Aim sessions take two to four minutes, a Quiz Rush race is over quickly, and Slash Course's swipe controls feel natural on a touch screen. The block puzzles, Drop Logic and Gridlock, use drag and tap, and you can put them down between turns.

Longer games like Pizza Professor and Launch IQ run six to ten minutes, which suits a longer ride or a full study-hall period.

You don't need a laptop to start. The question builder's Take Photo button opens your phone's camera, so you can snap a page of your notebook or a handout, and ZykoStudy reads the text and writes questions from it. You can also paste text or upload a PDF from your phone.

Don't re-read. Play the set for the material you're least sure of, note which questions you miss, and play it again. Two quick rounds of answering from memory will tell you more about what you know than fifteen minutes of skimming, and the misses show you what to check one last time.

Short sessions add up. Ten minutes a day across a week beats an hour the night before, because spacing practice out is one of the most reliable findings in memory research.