Built by a solo developer, now open to everyone

Look it up once.Remember it for good.

You look up a word, it makes sense, and a few days later it's gone. Mem-App is a dictionary that turns every word you look up into a flashcard, then brings it back for review just before you'd forget it.

Free, no account needed. Try it as a guest, sign up when you want to keep your words.

Free

No time limit, no card

Auto

Flashcards from lookups

100%

Ad-free experience

Sync

everywhere

Why Mem-App Works

Three key advantages that make vocabulary learning more effective and enjoyable

Real-World Context

Words from day-to-day context, not random lists. Learn vocabulary that you'll actually use in conversations and writing.

Complete Learning

Usage examples, synonyms, opposites, and pronunciation help you learn easier and remember better than simple definitions.

Built-in Dictionary

Dictionary and flashcards in one app creates less friction to learn and memorise. No switching between apps.

Powerful Features

Personalised Review Intervals

Adaptive spaced repetition that learns from you. Rate each word as Easy, Good, Hard, or Forgot, and the algorithm adjusts future review times to match your memory.

Pronunciation

Phonetics and native audio in American and British English, plus Spanish translations if you need them

Cross-Device Sync

Install Anywhere

Works on Android, iOS, and desktop. Install it for the best experience.

Android Guide iOS/Mac Guide Windows Guide

Why I built Mem-App

English is my second language, and I use it at work every day. I still meet new words all the time: in books, in movies, in a quick chat at the office.

For years I did what most people do. I looked a word up, felt like I understood it, and a week later I was looking it up again. Dictionary apps helped me find the meaning. Flashcard apps could help me remember it, but only if I stopped and typed every word in by hand, which I never did.

So I built the app I wanted: one where every word I look up becomes a flashcard on its own, and comes back for review right before I'd forget it. I use it every day, and I hope it helps you keep the words you find too.