Comparison

DK Visual Dictionary (2017) vs Isostasy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DK Visual Dictionary (2017)

This app provides audio for DK's Bilingual Visual Dictionaries, featuring over 7,000 spoken words and phrases per language by native speakers. It's organized thematically and allows users to tap words for pronunciation, save favorites, and use offline after downloading.

Highlights
  • 7,000+ spoken words/phrases per language
  • Native speaker audio
  • Thematic vocabulary organization
  • Tap to hear pronunciation
  • Offline access after download
  • Favorites list for saved words
Features
Read full description

DK Visual Dictionary App contains all the audio to accompany DK's Bilingual Visual Dictionaries. This DK Visual Dictionary app is the perfect companion to your visual dictionary. For each language, over 7,000 words and phrases are spoken in both English and the language of the title. All words are from the books and are spoken by native speakers. Simply download the free app, then use your copy of the book to fully access all the audio. This clear, comprehensive and easy-to-use app contains all the content from each Bilingual Visual Dictionary. Just like the book, the vocabulary is arranged thematically, with subjects including shopping, food and drink, study, work, travel and transport, health and appearance, sport and leisure, technology, and the home. Search for the page you want, tap on any word to listen to it being spoken, scroll up and down the word lists for each topic, and swipe left or right to go to the next or previous page. Perfect for study, work, and travel. Features: • Over 7,000 spoken words and phrases per title • UK and US English available • Save your most-used words to a Favorites list. Favorites can easily be added or deleted at any time • Audio can be removed from your device, and re-downloaded when required • After the audio has been downloaded, the app can be used offline • Buy more books and unlock more audio through a link in the app Developer note: For Ukrainian users learning English, please first set your device language to Ukrainian. For Hungarian users, please set your device to Magyar and search for and download the Képes Szótár app; this application is not compatible with the Hungarian dictionaries of Maxim Könyvkiadó.

About

Isostasy

Features
Read full description

Explore the balance of our planet with Isostasy! Earth’s crust floats on the mantle like ice on water, with higher regions having deeper roots. This interactive app brings five insightful isostasy scenarios to life — adjust key parameters and watch the results unfold. Perfect for curious minds, students, and anyone fascinated by Earth science!

Screenshots

DK Visual Dictionary (2017)4 screens
Isostasy4 screens

Verdict

The call

The clearest difference is update cadence: Isostasy at weekly against DK Visual Dictionary (2017)'s every 3 months. DK Visual Dictionary (2017)'s advantage is iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DK Visual Dictionary (2017) ships an update every 3 months, Isostasy weekly. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
DK Visual Dictionary (2017) versus Isostasy: the parameters behind the verdict, then further details
ParameterDK Visual Dictionary (2017)Isostasy
PriceFreeFree
Rating1.8 (33 ratings) — better—
Positive reviews19.9% of reviews—
Number of ratings33 — better—
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.6
Further details — not scored
Size208 MB1 MB
Age rating4+4+
DeveloperDorling KindersleyNestor Cardozo

Bugs and requests

DK Visual Dictionary (2017)

Reported bugs

4 issues
  • Barcode/ISBN not recognized
  • Audio files fail to download
  • Buggy interface with visual glitches
  • Lack of language support

Requested features

4 requests
  • Add support for more languages
  • Allow searching by word, not just page number
  • Implement landscape mode for tablets
  • Add option to slow down audio playback speed

Isostasy

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

DK Visual Dictionary (2017)

No in-app purchases

None

Isostasy

No in-app purchases

Questions

Is DK Visual Dictionary (2017) free?
DK Visual Dictionary (2017) is free to download, with no in-app purchases.
Is Isostasy free?
Isostasy is free to download, with no in-app purchases.
Do DK Visual Dictionary (2017) or Isostasy have ads?
Neither DK Visual Dictionary (2017) nor Isostasy shows ads.
Which is updated more often, DK Visual Dictionary (2017) or Isostasy?
DK Visual Dictionary (2017) ships an update every 3 months, and Isostasy weekly. Most recently, DK Visual Dictionary (2017) was updated on October 17, 2026 and Isostasy on October 3, 2026.

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