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MobiSystems' dictionaries are sold thought diffent channels. Depending on your device OS, there are a few ways to restore the Premium app:

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Since there have been a lot of inquiries regarding our Dictionary and Translator products, our team decided that it would be a great idea if we can develop a new community, where our users can not only help themselves in a quicker and user-friendly fashion, but assist to other fellow users.

You can also contribute to our general improvements and provide your suggestions and ideas on how we should better not only the features, but the services as well. 

Please feel free to visit our community here: and let us know if you have any questions, issues, or would just like to share your experience and impressions.

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Often, after you have updated your interface or changed your device, the Premium license gets lost and does not automatically renew. 
The simple remedy here would be to manually restore your purchase. You can find the articles on how to do so here:

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At the moment our dictionaries do not provide a backup function. Your data is stored on the device only. When transferring a license to another device your favourites, recent words and folders will not be transferred.
You can manually transfer the favourites from your first device to the next. 

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  • Android:
If your dictionary has the latest update available, you can easily apply it when you go to The Google Play Store and tap on your profile icon at the top right corner of the screen, then tap on "My apps and games" and go to "Updates". The apps that will have the latest updated version, will be present on the list and you would just have to tap "update", or "Update all" so you applies to all of your apps. 

  • iOS: 
If your dictionary has the latest update available, you can easily apply it when you go to the App Store. At the bottom of the screen you will see an "Updates" icon, which most of the time has a red dot on top of it. Tap on the icon and choose the app that can be updated.You can also click on the "Update all" button. 


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Our Dictionaries content is created with the assistance of the world's leading dictionary providers.

We strongly believe that all of our partners have very carefully considered what to include in their dictionaries, be it Oxford, Collins, Houghton Mifflin Harcourt, Elsevier, etc. If you notice an incorrect description, you can write to us at

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The Oxford Dictionary of English contains very latest vocabulary, with over 350,000 words, phrases and meanings. It is the mobile counterpart of the printed edition of Oxford University Press's ODE.

We have multiple standalone Thesaurus containers. Some are even bundled with our dictionaries. The full list can be accessed in HERE

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The dictionary content of the Oxford Dictionary of English focuses on current English and includes modern meanings and uses of words.

Users commonly confuse our dictionary with the Oxford English Dictionary, which is a historical dictionary and encompassing all the core words and meanings in English over more than 1,000 years.

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Sometimes app crashes and bugs are inevitable, and fixing them takes time. By reporting them, you help us solve the problem faster.

What to do if an app crashes during login?

1. Tap the Settings app on your iOS device.

2. Tap Privacy.

3. Scroll down and tap Analytics & Improvements.

4. Tap Analytics Data.

5. You will find a chronological list of all the app crash logins, starting from the latest.

6. Tap on the app with the crash login you need to report.
The name of the log is listed by Name of app_year_date_hour.

7. Tap the Share icon.

8. Choose your preferred email provider and send the login crash to

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Most digital services of the Oxford University Press (OUP) are gradually migrating to subscription payments. In view of the fact that Oxford University Press’ content is licensed to us, we can no longer offer it for free without some limitations.

The 30-day trial explained

  • In light of the these changes, we included an introductory 30-day trial plan at a very low price. It will give a complete overview of the Premium service, before purchasing the yearly package.
Premium subscription explained

  • Regular content updates - receive updates to the word database, as soon as it is available from the Oxford University Press.
  • Offline mode - access the wealth of the word database anywhere, anytime - no data or internet connection is required.
  • Audio pronunciation – learn words faster by hearing their pronunciations. Available for more than 75,000 entries.
  • Priority support – receive an answer within 24 hours for any app-related support issue.
Free lifetime plan explained

  • Online search and display of the content remains unlimited.
  • Limit of 1 free word per day.
  • Cached data is stored on the device - all previously opened entries will be available.
  • Color themes, favorites lists and folders, recent words and word sharing are app features vital to proficient and beginner level users and will not be locked behind a paywall.
Subscrption services provided directly from the OUP

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If you still haven't updated your Oxford Dictionary of English app, we would encourage you to do so, as the landscape mode is back in action. The latest 14.1 version provides both portrait and landscape mode, so both our iPhone and iPad users can have a convenient definition lookup.

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The maximum number of recent words is 100 for the Oxford Dictionary of English for iOS and 50 for the Oxford Dictionary of English Android.

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1. If you made a direct purchase of the Premium Dictionary from the App Store:

  • Make sure you are signed in with the Apple ID used for purchase.
  • On an iPhone, iPad, or iPod touch Tap App Store.
  • On an iPhone or iPod touch: Tap Updates, then tap Purchased.
  • On an iPad: Tap Purchased.
  • If applicable, remember to tap 'Not on this [device]'
  • Scroll to find the app.
  • Make sure you are restoring only the app that you have purchased,if you are not certain of the exact name, you can check your invoice.
  • Tap the Open icon. After the app downloads, you can open it from your home screen.
2. If you acquired the app through an in-app upgrade from Free to Premium:

Open the App Store with the Apple ID used for the purchase -> Download the Free app -> Open the app -> Tap on the "Crown" icon at the top right of the display -> The Premium pop-up window will appear -> Look for a "Restore purchase" button>>You would have to verify your Apple ID and password

3. If you have an active subscription, you can easily restore it by following the steps here: 
  • Make sure you are signed-in on both your device and Apple App Store with the account you used for the purchase
  • Go to the Apple App Store>>Tap on your Profile icon>>Purchased>>The subscriptions you paid for are there
  • The device will automatically recognize your subscription

Apple App Store purchase:


More info on how to restore purchases in the App Store is available here

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Before you follow these steps, see if your speaker works: In Settings > Sounds (or Settings > Sounds & Haptics), drag the Ringer and Alerts slider up or down a few times.

  • 1. If your device has a Ring/Silent switch, move the switch forward—toward the device's display—so that the orange part of the button shouldn't be visible.
    Open Settings > Do Not Disturb and check that Do Not Disturb is off.
    If you're using an iPad, you can also swipe down from the top-right corner to view Control Center and make sure the Mute/Bell button and Do Not Disturb button aren't enabled.
  • 2. Open an app that has music or sound effects, then adjust the volume with your volume buttons or the slider in Control Center.
  • 3. Turn off Bluetooth. To make sure that your device isn't sending audio to a Bluetooth accessory, go to Settings > Bluetooth and turn off Bluetooth.
  • 4. Make sure you are using the full version of the app. You may have to go to Settings -> Restore purchases to confirm the Apple ID used to purchase the app.
You can check out a quick tutorial here: 

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According to Apple's policy, an in-app purchase cannot be shared with family members. Our Premium dictionaries generally fall into this category. For the official App Store policy on Family Sharing tap here

So your license is eligible for Family Sharing if:

  • You made a direct purchase of the Premium license from the App Store
  • The license you acquired is NOT a Subscription

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The Word of the Day is generated randomly from the whole dictionary database, except for the Oxford Dictionary of English. Please excuse us if it's not quite intriguing every day.

We are currently working on a way to provide our users with a more "elaborate" meaning/entry each day.

Note: you can disable the feature in app Settings -> toggle the Slide button to turn the Word of the Day on/off.

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Not an issue, but rather an expected behavior. Please check here for more info.

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Our Academic dictionaries such as the Oxford Dictionary of English use a phonetic symbol system developed by a man called Clive Upton.

You can read about the standard we use here

And for the Oxford Dictionary of System standard here

You can find a list which has all of the word here

There are some subtle differences about the Oxford Phonetic System, but here's a quick rundown:

  • For the vowel in BED where EFL texts usually use /e/ he used /ɛ/
  • For the vowel in PRICE where EFL texts usually use /aɪ/ he used /ʌɪ/
  • For the vowel in BIRD where EFL texts usually use /ɜː/ he used /əː/
  • For the vowel in HAIR where EFL texts usually use /eə/ he used /ɛː/
There are some other more subtle differences in for e.g. the description of the vowel in anyway (often /i/ in EFL texts, /ɪ/ in Upton’s) and around the use of secondary stress marks (/ˌ/).

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The simple solution here would be to uninstall the app and install it all over again. Just in case, make sure to restart your device after that as well.

If you have a license, purchased, please make sure to sign-in with your purchase Apple ID and restore the purchase. 

Link on the article here.

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There are two reason for the discontinuation of all Cambridge dictionaries:

  • The technology used for building these apps was completely deprecated and is now obsolete, therefore we cannot continue support for the Cambridge legacy apps. Find out more about legacy apps and deprecated tech here.
  • Our contract with Cambridge University Press & Assessment has been discontinued for more than 5 years. In that sense updates to their copyright protected content are not available.

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