We're the team behind Flips, a flashcard app built around the idea of showing you a word right before you forget it. From working adults and busy students, we often hear: “I can't get a solid block of time at a desk. Can I memorize words in spare moments?”
The short answer: memorizing words actually suits spare time better. Just drop the belief that “it doesn't count as study unless I sit down at a desk,” and the spare 5 minutes of a commute turns into real study time. In this article we'll explain why short, scattered minutes work so well for memorization, and how to make sure those 5 minutes count.
Why short bursts work better for memorization
What works best for memorizing words isn't cramming a lot at once — it's touching the same words many times with gaps in between (distributed practice). Splitting 5-minute sessions across the day beats one solid hour on 100 words, because you get more separate exposures, which stick better.
A commute, lunch break, a checkout line, a few minutes before sleep — these spare moments are exactly where you can naturally build that “distributed, repeated exposure” into your life. Waiting for a big block of time means study never starts, but spare moments let you start cycling today. Being short and scattered isn't a weakness for memorization — it's a strength.
Three tips to make 5 minutes count
That said, just opening your phone lets 5 minutes melt away. To reliably turn spare time into memorization, three things matter.
1. You can start the instant you open it. With only 5 minutes, hesitating over “which words should I do” burns half of it. Set things up so today's batch is right in front of you when you open it. 2. It breaks into single questions. So you can be interrupted at any time, a form that completes one question at a time is ideal. Stop midway when your train arrives, and no progress is wasted. 3. You work in a recall form. Don't gaze vaguely — hide the answer and recall it, or answer a quiz. Even in a short window, putting a recall load on yourself makes it stick.
Make spare-time study run without thinking
We built Flips because we wanted these three tips to be satisfied without you having to think about them. Based on the forgetting curve, Flips automatically selects the words you should review that day and serves them up. So when you open it, today's batch is already prepared, and zero time goes to hesitating. Card Mode and Quiz Mode both move one question at a time, so you can do 5 minutes or 30 seconds — exactly as much as you have.
Both ways of answering are recall-based (active recall), so even short spare moments stick well. And Flips notifies you of the optimal review timing with a push notification, cutting down on “I had a spare moment but used my phone for something else.” Decks for English, Spanish, Chinese and more are built in, and you can create your own, so it fits whatever you want to learn.
You don't need a big block of study time. Just gather up the 5-minute pockets scattered through your day, and your vocabulary builds up steadily. Let Flips be the tool that turns those scattered minutes into study without you having to think.
Flips
The flashcard app that shows you words right before you forget them. One question at a time in spare moments, with today's batch prepared automatically. Free to start.
Learn more about FlipsFrequently Asked Questions
Can spare-time memorization alone really be effective?
Yes. In fact, touching the same words repeatedly with gaps — distributed practice — sticks better than cramming all at once. Spare moments let you build that spacing naturally into your life, which is why they pair so well with memorization.
How should I use it when I only have 5 minutes?
The trick is a form you can start without hesitation and that breaks into single questions. If today's batch is in front of you the moment you open it, you can reliably get through exactly as much as those 5 minutes allow. Stopping midway wastes no progress.
How is this different from just gazing at my phone?
Just gazing makes you feel like you know it, with little effect on memory. Even in a short window, switching to a recall form — hide the answer and recall it, or answer a quiz — changes what sticks from the same 5 minutes.
I keep forgetting to study in spare moments.
Flips notifies you of the optimal review timing with a push notification, so the notification becomes your “do it now” cue. Tie it to a fixed moment — your commute, before sleep — and it's harder to forget.