WordValeThere are hundreds of vocabulary apps, and most reviews rank them by feature count. This one asks a narrower question: which app is best if the words you want to learn are the ones you meet while reading?
That changes the ranking a lot. An app built for exam word lists can be excellent and still be the wrong tool for a reader. We made WordVale, so read the last entry with that in mind; the comparisons before it are as fair as we can make them.
What matters for a reader
- Capture from other apps. Can you send a word from Safari, Kindle, or a PDF in a tap or two? If you have to retype it, you will not.
- Context is kept. Does the app hold on to the sentence you found the word in?
- Spaced repetition. Does it schedule reviews, or just let you flip cards?
- Cost model. Subscription, one-time, or free with ads. For a habit you hope to keep for years, this matters more than it looks.
Anki
The reference implementation of spaced repetition, and free on desktop and Android (the iOS app is a one-time purchase). Infinitely customisable. The cost is that you build every card yourself, and the interface has not changed much in fifteen years. Best for people who enjoy tinkering and are studying for something specific. Weak for readers, because there is no capture flow and the friction of making cards is exactly what kills the habit.
Quizlet
Huge library of shared sets, good for school and exam vocabulary, and the free tier is generous. Spaced repetition is behind the subscription. Built around lists other people made; there is no reading-capture flow. Best for students working from a syllabus.
Vocabulary.com
Excellent definitions written for learners, and a smart adaptive quiz that is genuinely good at teaching meaning. Subscription-based for the full experience. Its dictionary is the strongest of any app here. It is less built around your words from your reading, and more around its own curated lists and games.
Memrise and Drops
Both are language-learning apps first and vocabulary tools second. Strong for beginners in a new language, with polished games and video clips. Subscriptions. Neither is designed for an advanced reader collecting words from English books and articles.
WordVale
Built for one situation: you are reading, you meet a word, you want to own it. Highlight the word or the whole sentence in any app, tap Share, and it is saved with a learner-friendly meaning, a pronunciation you can say, and your sentence as the example. Spaced repetition brings it back on a schedule that takes about three minutes a day. One purchase, no subscription, no account, and your words sync through your own iCloud. The trade-off is that it is English-focused and has no library of shared sets; the vocabulary is yours.
It ships with twenty collections of words worth knowing, from phrasal verbs to finance and literary English, if you want a running start.
The short version
| If you are… | Start with |
|---|---|
| A student with a syllabus | Quizlet |
| A tinkerer who wants total control | Anki |
| Someone who wants the best definitions and games | Vocabulary.com |
| A beginner in a new language | Memrise or Drops |
| A reader collecting words from what you read | WordVale |
Whatever you choose, the routine matters more than the app.