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*** Featured on the iTunes Home Page, and in Reference and Education ***

Have you ever looked up a word, only to forget its meaning later?

Word Vault stores all the words you want to remember and helps you to internalize them. Mundane, exotic, functional, highfalutin: amass a cache of words you love, then learn them all.

We learn fastest with frequent exposure to new words. Use Word Vault as your regular dictionary app, and it will remind you to come back and review the words you've looked up. Reviews are quick, fun, and help you to get words out of your phone and into your brain.

- Robust offline English dictionary, and online lookup for esoteric words
- Vocabulary review system with a configurable schedule
- Pronunciations
- Images and Illustrations
- Translations (See note* below!)
- Auto-complete and spell-check suggestions
- Thesaurus functionality
- Customization of your word list with notes, sources, and favorites
- Example sentences
- URL support, so you can look up words from other apps:

If you'd like to get in touch for any reason, you can follow @chaoticgoodies on Twitter, or email contact@chaoticgood.com.

Psst, Educators: You can purchase Word Vault for students, teachers and administrators at a discount through Apple’s Volume Licensing Program!

*Translation functionality can be activated with a one-time in-app-purchase. Please note that translations are provided for the words looked up and not for definitions. Translations are provided via Microsoft Translator, which does not have a 100% accuracy rate, especially for isolated words without context. An upcoming update will include the ability to test translations in your language of choice before paying for the in-app-purchase, to help you better gauge the value of the functionality before paying.

What’s New

Version 2.2.2

Adjusted UI for iPhone X!

Recent Fixes:
- Review reminders now work again. This took longer than expected to fix since I was barking up the wrong tree, and the first tree had snakes in it.
- Words in reviews are now appropriately redacted again.

Ratings and Reviews

4.4 out of 5
5 Ratings

5 Ratings

Hiza Kite ,


Cannot imagine being without this app.
Used ‘every day’ without fail.

Simply, a must have app...

Mossmiss ,

I love it!

I've wanted something like this for ages- I've tried my own methods for trying to remember interesting new words I come across but invariably I don't get around to reviewing them and just forget about them, then when I come across the same word again I think 'doh!' I still can't remember what that means! This is great, you fill it with your own found words, you can add extra notes and you can set reminders to review your words so they truly start to embed themselves in your vocabulary.
The only issue I have with it is the dictionary could be better, but (at the suggestion of the friendly and helpful developers) you can add via the notes facility more to define your word. The developers say they will look into improving the dictionary. I highly recommend it, it's now one of my favourite apps.

davyw ,


This is such a great app for learning new vocabulary. Your writing and speech will be noticeably improved after a mere week of using this app. Daily reminders ensure you review yourself every day to engrain the vocabulary into your everyday language. It would be great if we had the option to make the reviews harder by removing the first letter clue, making reviews more of a challenge rather than a mechanical action.
Beautiful interface, so easy and really quick to use. Great app. Totally worth £1.99.


Chaotic Good LLP
175.4 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 12+ for the following:
Infrequent/Mild Sexual Content and Nudity
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
© 2015 Chaotic Good, LLP
In-App Purchases
  1. Enable Translations £1.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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