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Collins COBUILD Dictionary

MobiSystems, Inc. · Reference · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card Google Play version →
Revenue a month, worldwide EST
$339
Likely $113 to $1K
New ratings
Tracking
Daily counts start building from today
Rating
4.4 of 5
46 ratings in this store
Countries it ranks in
0
was 1 on Oct 17, 2026

Revenue

Estimated from the grossing charts of Oct 24, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$4.1K
1.0 new ratings a month on average since launch
EST. LIFETIME DOWNLOADS
1.6K to 4.6K
Estimated from ratings count
WHERE ITS USERS ARE · SHARE OF RATINGS
  • South Korea 59 ratings30%
  • Japan 51 ratings26%
  • United States 46 ratings23%
  • Australia 12 ratings6%
  • Canada 7 ratings4%
  • United Kingdom 6 ratings3%
  • Spain 3 ratings2%
  • France 2 ratings1%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (1.0 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
46
AVG RATING
4.37
PRICE
$11.99
AGE
16.2y
LAST UPDATE
3027d ago
VERSION
10.0.11
SIZE
68 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
10 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE A MONTH, DAILY · BOTH STORES EST
Show daily values
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The same estimate as the headline, saved every day. Best rank Sep 25, 2026: not ranked. Now: not ranked.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.0 reviews / week
  • Recent reviews average3.8 stars
  • Recent 1 and 2 star share22%
From the latest 9 written reviews, covering 5289 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases274 days
From the last 9 versions listed on the App Store.
RATING BREAKDOWN
46 ratings
5★72%
4★13%
3★4%
2★2%
1★9%

What users say

Latest reviews, United States App Store.

★★★★★May 2, 2026
Crashes

Continues to crash on my iPad.

★★★★★Sep 10, 2025
Great resource, wish it worked with VoiceOver

The Collins Cobuilt dictionaries have long been a favorite resource in my special education classroom as well as at home. The simple, clear, concise definitions and examples are helpful to all students. I was thrilled to find this app (as were my children) to go with us everywhere. However, as a teacher of the visually impaired and the mother of a blind child, I am disappointed that there is no read aloud feature, nor does it work with VoiceOver. Furthermore, as it is designed to assist English language learners, the auditory component would be extremely important to this group of students as well.

★★★★★Nov 20, 2024
Good dictionary!

I like the full sentence definitions that is provided and the example sentences.

★★★★★Mar 3, 2024
An international scholar

As an international scholar, I always grapple with nuances of words and this app gives very succinct explanation of vocabulary. love it!

★★★★★Aug 25, 2023
Synonyms

The only thing lacking is synonyms.

★★★★★Dec 15, 2018
Maybe it's operator error, but...

The words I put in never pop up. I put minimization in just now and got other words like it but not the one I need. This app has been useless to me.

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Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

No App Store ads in the EU
None in the last 90 days.

Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

words8word8search7dictionary6find words5bank english5find4language4english4tools4full sentences3search tools3dictionary combines3combines several3helps find3learning tools3word day3including3bank3entry3learning3helps3full2sentences2

What's new in 10.0.11

• Four new colorful themes. • Delete and sort entries with Favorites/Recent list. • General bug fixes and improvements.

Released Sep 4, 2010. Current version shipped Jul 11, 2018.

Store description

You will find all the words you need, defined clearly in full sentences. Including a range of 17,000 headwords, 63,000 references and 25,000 examples, the information in this dictionary has been carefully chosen in order to allow the dictionary user to be a confident language user. It will enable you to write better in English as well as understand the language better. The Collins COBUILD Intermediate Dictionary is based on a huge database of text, both written and spoken, called The Bank of English. The Bank of English® contains over 650 million words, and it is the basis of all the statements that COBUILD makes about the language. The entries contain a detailed account of the main uses and meanings of every word. Each of the forms is listed at the start of each entry, along with information about alternative spellings, if any exist. Explanations are written in full sentences, show typical grammatical behavior and give a clear description of meaning. The thousands of examples are taken directly from The Bank of English®, showing typical patterns of usage and grammatical structure. LATEST APP UPDАТES:  • Learn in style with any of the four colorful new themes – The colorful layout will turn your learning experience into an enjoyable routine. Customize your dictionary and benefit from the cheerful mood your favorite color brings you.  • Dive right into the intricacies of the language - With new and convenient Home page, sleeker and more intuitive visual layout, as well as innovations in the speed of searches, you can get to the desired entry faster than ever.   SEARCH TOOLS - quickly find words with the clear, functional, and easy-to-use interface. Designed to provide the most comprehensive search experience, the dictionary combines several search tools to match or predict what are you looking for, including:  • Search autocomplete helps you find words quickly by displaying predictions as you type.  • Keyword lookup allows you to search within compound words and phrases.  • Camera search looks up words in the camera viewfinder and displays results in seconds.  • Voice search helps you find an entry when you don’t know how a word is spelled. Looking for a specific word but don't know how it's spelled? We've got you covered with our automatic ‘Fuzzy filter’ to correct word spelling, as well as ‘Wild card’ ('*' or '?') to replace a letter or entire parts of a word. LEARNING TOOLS - engaging features that help you further enhance your vocabulary. Designed to give you freedom to structure your studies, the dictionary combines several learning tools to help you be more organized, including:  • ‘Favorites’ that allow you to create custom folders with lists of words.  • Recent list which helps you to easily review looked-up words.  • Swipe-to-delete functionality in the Recent and Favorites menus.  • Word-of-the-day option to teach you a new word every day. Feel excited by the new word or definition you just learned? Share your discovery with friends on social media, email or any other option available on your device.

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