Wordwren

Offline vocabulary trainer

Look it up. Save it. Never forget it.

Wordwren is an offline dictionary and spaced-repetition flashcard trainer for iOS. 57 built-in language dictionaries, a Leitner-system trainer, and a one-time purchase — no subscriptions, ever.

Download on theApp Store

Free to download · one-time purchase unlocks everything

  • Offline-first
  • 57 languages
  • One-time purchase
  • No account

How it works

From word to memory, in three taps

01

Look up

Search any of 57 built-in offline dictionaries — no data connection required. English alone covers 660,644 entries.

02

Save

Tap once to save a word to your personal list, or add a fully custom word from a book, a class, or a conversation.

03

Train

Flashcards and a spelling trainer built on the Leitner system focus your practice on the words you actually forget.

No subscription

Your words are yours

Pay once, keep it forever. No monthly fee, no login, no streak notifications guilting you back in. Export your words to JSON any time you like. Read the philosophy →

57 languages

A dictionary for what you're learning

From 660,644-entry English to early dictionaries for languages like Welsh and Swahili — all bundled on-device, all free to browse. See all 57 dictionaries →

Start building your vocabulary

Download Wordwren and turn the words you look up into words you know.

Download on theApp Store