# Thai Fast Dictionary vs Dictionary and Thesaurus Pro

The clearest difference is price: Thai Fast Dictionary at Free against Dictionary and Thesaurus Pro's $9.99. Thai Fast Dictionary also leads on update cadence (every 6 weeks vs every 4 months). Dictionary and Thesaurus Pro's advantage is in-app purchases (none vs 7) and ads (none vs shown). On rating, device support and iOS requirement there is nothing between them.

Thai Fast Dictionary is free to download; Dictionary and Thesaurus Pro costs $9.99 up front. Thai Fast Dictionary sells 7 in-app purchases, starting at $0.99 per month. Dictionary and Thesaurus Pro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Thai Fast Dictionary against 4.9 for Dictionary and Thesaurus Pro. 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 are what separate them: 60% of Thai Fast Dictionary's written reviews are positive against 87% of Dictionary and Thesaurus Pro's.

Thai Fast Dictionary ships an update every 6 weeks, Dictionary and Thesaurus Pro every 4 months. The most recent releases landed on September 24, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Thai Fast Dictionary | Dictionary and Thesaurus Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thai-fast-dictionary/id376340941/reviews)** | [4.9 (2.6K ratings)](https://appshunter.io/ios/app/dictionary-and-thesaurus-pro/id492085918/reviews) |
| Number of ratings | 1 | **2.6K** |
| Positive reviews | 59.6% of reviews | **86.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#33** |
| Size | 143 MB | 22 MB |
| Requires iOS | 14.0.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [THAI FAST COMPANY LIMITED](https://appshunter.io/developer/1225512562) | [Farlex, Inc.](https://appshunter.io/developer/379450386) |

## What reviewers say

### Thai Fast Dictionary

[App page](https://appshunter.io/ios/app/thai-fast-dictionary/id376340941)

Access an extensive offline dictionary with definitions and examples across multiple languages. An integrated AI chatbot offers instant assistance for clarifying terms, expanding vocabulary, and practicing pronunciation.

**Highlights:** Offline global standard database, Extensive word repository, Definitions and examples, Integrated AI chatbot, Instant assistance, Pronunciation practice

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advance features | $0.99 | per month |
| Offline IPA with no Ads | $2.99 | per year |
| English meaning and samples | $2.99 | per year |
| Advance features | $4.99 | per year |
| Point 1000 pts | $2.99 | one-time |
| Point 5500 pts | $12.99 | one-time |
| Point 12000 pts | $29.99 | one-time |


### Dictionary and Thesaurus Pro

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

**Currently charting:** #33 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


## Frequently asked questions

### Is Thai Fast Dictionary free?

Thai Fast Dictionary is free to download, with in-app purchases available.

### Is Dictionary and Thesaurus Pro free?

Dictionary and Thesaurus Pro costs $9.99, with no in-app purchases.

### Which has better reviews, Thai Fast Dictionary or Dictionary and Thesaurus Pro?

Thai Fast Dictionary is rated higher. Thai Fast Dictionary averages 5.0 out of 5 from 1 ratings, while Dictionary and Thesaurus Pro averages 4.9 from 2.6K ratings.

### Do Thai Fast Dictionary or Dictionary and Thesaurus Pro have ads?

Thai Fast Dictionary shows ads; Dictionary and Thesaurus Pro does not.

### Which is updated more often, Thai Fast Dictionary or Dictionary and Thesaurus Pro?

Thai Fast Dictionary ships an update every 6 weeks, and Dictionary and Thesaurus Pro every 4 months. Most recently, Thai Fast Dictionary was updated on September 24, 2026 and Dictionary and Thesaurus Pro on September 28, 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.*