Comparison

Dictionary and Thesaurus Pro vs Transformer Designer

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

Head to head
About

Dictionary and Thesaurus Pro

Access a comprehensive offline dictionary and thesaurus with extensive content in multiple languages. Explore definitions, synonyms, and specialized dictionaries for various fields. Enjoy an ad-free experience with features like word games and instant lookups.

Highlights
  • Ad-free experience
  • Offline English dictionary and thesaurus
  • Offline dictionaries in 13 languages
  • Offline translations to over 40 languages
  • Specialty dictionaries (Medical, Legal, etc.)
  • Word games and daily content
  • Instant word lookup from other apps
Features
Currently charting
Read full description

Get the world's most comprehensive ad-free dictionary and thesaurus with extensive offline dictionary content and synonyms. Dictionary Pro is the premium version of The Free Dictionary app, featuring: * No ads. * A comprehensive English offline dictionary and offline thesaurus. * Offline dictionaries in 13 other languages. * Offline translations of English into more than 40 languages. * Dozens of other offline translation options. Rated #1 app in the App Store in the paid reference category in 109 countries 2011–2019 (Source: http://www.appannie.com/apps/ios/app/492085918/app-ranking/#device=iphone&type=best-ranks) Plus TheFreeDictionary's classic app content: * Find every word you search for. Get results from trusted sources: Webster's Dictionary Roget's Thesaurus The American Heritage Dictionary + More than 100 dictionaries and encyclopedias from these top publishers: McGraw-Hill Houghton Mifflin HarperCollins Random House Elsevier + More! * Learn the word. Clear definitions, example sentences, etymologies, illustrations, and more. * Learn how to say it. Play audio pronunciations and hear it pronounced. * Learn something new. Word of the Day and other fresh daily content. * Find the perfect synonym fast. East-to-use Thesaurus with synonyms, antonyms, and related words. * Explore topics in-depth. Multiple specialty dictionaries and encyclopedias: Medical Legal Science Financial Idioms Acronyms and Abbreviations + More! * Watch idioms in action. View idioms videos inside the app and see idioms and slang explained. * Play word games. Spelling Bee, Hangman, and more. * Access dictionaries in 13 other languages, including: Spanish French German Italian Portuguese Russian Chinese + More! What makes Dictionary Pro the most user-friendly dictionary app? * Instantly look up words in apps or webpages! Just highlight the word you want to look up, tap "Share," then tap "More" in the bottom menu and turn on the "Define" option. You will then see a "Define" icon in the menu. Tap it to see the definition of the highlighted word! * Voice search. Just say the word to look it up. * Advanced Search options. * Look up the definition of any word on the page. Just highlight and tap "Definition." * Save bookmarks with one tap and sync them to all your devices. * Customize your homepage: Move, add, or remove articles, games, even local weather. * Jump to Definition, Thesaurus, or Translations with one button. * Navigate the app in more than a dozen languages with the multilingual interface. * Adjust font size. * Share your favorite definitions and articles via social networks, email, or text. EXCLUSIVE * Earn meals for hungry children through The Free Dictionary's partnership with the World Food Program—just by using the app! Not convinced? Read our reviews to see why our users say this is the best dictionary app they've ever used. How do we do it? Farlex is a leader in dictionary apps. We work with the best publishers to bring together trusted content in the most comprehensive, authoritative dictionary apps on the market. Find our other apps by searching "Dictionary by Farlex" in the App Store. * For app developers: The Free Dictionary app can be accessed by other apps with API calls (Contact Farlex for instructions).

About

Transformer Designer

Calculate design parameters for single-phase EI type transformers. This app assists designers in determining key values like turns per volt, coil turns, and power for two-winding transformers.

Highlights
  • Calculate Transformer Turn/volt
  • Determine primary coil turns
  • Determine secondary coil turns
  • Calculate primary coil amperage
  • Calculate secondary coil amperage
  • Calculate transformer power
Features
Read full description

Transformer Designer - to calculate design parameters for single pahse transformers. Transformer are widely used in our electrical applications to step down or step up AC voltage. These are used in power supplies, stabilizers, inverters, converters and UPS. This app is complete solution for especially for two winding transformer. This app helps transformer designers to find out different transformer parameters. These parameters are - Transformer Turn/volt - Turns for primary coil - Turns for secondry coil - Amp for primary coil - Amp for secondry coil - Transformer power Disclaimer : We have designed this app at our best. We have tested it so many times but use it at your own risk. We will not responsible for any kind of loss in any form due to this app. If you find any bug or defect then please inform us at purnima10verma@gmail.com. If you have a mind blowing idea of an app you can also share with us at this email.

Screenshots

Dictionary and Thesaurus Pro4 screens
Transformer Designer2 screens

Verdict

The call

The clearest difference is review sentiment: Dictionary and Thesaurus Pro at 87% against Transformer Designer's 0%. Dictionary and Thesaurus Pro also leads on rating (4.9 vs 3.0) and update cadence (every 4 months vs every 38 months). Transformer Designer's advantage is price ($1.99 vs $9.99). On ads, in-app purchases, monetization model 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

Dictionary and Thesaurus Pro costs $9.99 and Transformer Designer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Dictionary and Thesaurus Pro holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Dictionary and Thesaurus Pro has 2.6K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 87% of Dictionary and Thesaurus Pro's written reviews are positive against 0% of Transformer Designer's.

UpkeepUpdate frequency

Dictionary and Thesaurus Pro ships an update every 4 months, Transformer Designer every 38 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 5 level
Dictionary and Thesaurus Pro versus Transformer Designer: the parameters behind the verdict, then further details
ParameterDictionary and Thesaurus ProTransformer Designer
Price$9.99$1.99 — better
Rating4.9 (2.6K ratings) — better3.0 (1 ratings)
Positive reviews86.6% of reviews — better0.0% of reviews
Number of ratings2.6K — better1
Update frequencyEvery 4 months — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#85 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better13.5
Further details — not scored
Size22 MB2 MB
Age rating4+4+
DeveloperFarlex, Inc.Suresh Verma

Customer experience

Dictionary and Thesaurus Pro

All ratings2,560 ratings
Positive97.0%
Neutral1.1%
Negative1.9%
Written reviews469 reviews
Positive86.6%
Neutral2.8%
Negative10.7%

Transformer Designer

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Dictionary and Thesaurus Pro

Reported bugs

3 issues
  • Search function sometimes fails to load definitions
  • Offline mode has fewer word entries than online
  • Occasional sync issues between online and offline data

Requested features

4 requests
  • Add more language dictionaries
  • Improve thesaurus with more synonyms and antonyms
  • Implement flashcard or vocabulary building features
  • Allow users to save custom word lists

Transformer Designer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Dictionary and Thesaurus Pro

No in-app purchases

None

Transformer Designer

No in-app purchases

Questions

Is Dictionary and Thesaurus Pro free?
Dictionary and Thesaurus Pro costs $9.99, with no in-app purchases.
Is Transformer Designer free?
Transformer Designer costs $1.99, with no in-app purchases.
Which has better reviews, Dictionary and Thesaurus Pro or Transformer Designer?
Dictionary and Thesaurus Pro is rated higher. Dictionary and Thesaurus Pro averages 4.9 out of 5 from 2.6K ratings, while Transformer Designer averages 3.0 from 1 ratings.
Do Dictionary and Thesaurus Pro or Transformer Designer have ads?
Neither Dictionary and Thesaurus Pro nor Transformer Designer shows ads.
Which is updated more often, Dictionary and Thesaurus Pro or Transformer Designer?
Dictionary and Thesaurus Pro ships an update every 4 months, and Transformer Designer every 38 months. Most recently, Dictionary and Thesaurus Pro was updated on November 1, 2026 and Transformer Designer on October 30, 2026.

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