# Dictionary and Thesaurus Pro vs Transformer Designer

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.

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.

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.

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.

## The numbers

| Metric | Dictionary and Thesaurus Pro | Transformer Designer |
| --- | --- | --- |
| Price | $9.99 | **$1.99** |
| Rating | **[4.9 (2.6K ratings)](https://appshunter.io/ios/app/dictionary-and-thesaurus-pro/id492085918/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/transformer-designer/id1541116996/reviews) |
| Number of ratings | **2.6K** | 1 |
| Positive reviews | **86.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 38 months |
| Monetization | Paid | Paid |
| Best chart rank | **#85** | — |
| Size | 22 MB | 2 MB |
| Requires iOS | **13.0** | 13.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Farlex, Inc.](https://appshunter.io/developer/379450386) | [Suresh Verma](https://appshunter.io/developer/1207634042) |

## What reviewers say

### Dictionary and Thesaurus Pro

[App page](https://appshunter.io/ios/app/dictionary-and-thesaurus-pro/id492085918)

**Currently charting:** #85 Top Paid · Reference (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Comprehensive and detailed definitions
- 💡 Helpful translation and pronunciation features
- 👍 Useful word games and trivia
- 👍 Offline mode availability

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔍 Limited thesaurus functionality
- 🔍 Lack of customization options
- 💰 Paid version required to remove ads

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/transformer-designer/id1541116996)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*