# Thai Fast Dictionary vs Merriam

The clearest difference is ratings volume: Merriam at 328K against Thai Fast Dictionary's 1. Merriam also leads on review sentiment (83% vs 60%) and chart position (#37 vs unranked). Thai Fast Dictionary's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Thai Fast Dictionary sells 7 in-app purchases, starting at $0.99 per month and Merriam sells 4 in-app purchases, starting at $1.79 per month. Whichever you choose, the download price is not the number that matters.

Thai Fast Dictionary holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Merriam has 328K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 60% of Thai Fast Dictionary's written reviews are positive against 83% of Merriam's, so the app with the better star average is not the one people write more warmly about.

Thai Fast Dictionary ships an update every 6 weeks, Merriam every 3 months. The most recent releases landed on September 24, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Thai Fast Dictionary | Merriam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thai-fast-dictionary/id376340941/reviews)** | [4.8 (328K ratings)](https://appshunter.io/ios/app/merriam-webster-dictionary/id399452287/reviews) |
| Number of ratings | 1 | **328K** |
| Positive reviews | 59.6% of reviews | **83.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#37** |
| Size | 143 MB | 255 MB |
| Requires iOS | **14.0.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [THAI FAST COMPANY LIMITED](https://appshunter.io/developer/1225512562) | [Merriam-Webster, Inc.](https://appshunter.io/developer/399452290) |

## 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 |


### Merriam

[App page](https://appshunter.io/ios/app/merriam-webster-dictionary/id399452287)

**Currently charting:** #37 Top Free · Reference, #75 Top Grossing · Reference (US App Store)

Access America's most respected dictionary, updated with new words and meanings. This app offers offline access, voice search, daily vocabulary challenges, and a thesaurus. It's designed for English language reference, education, and vocabulary enhancement.

**Highlights:** Offline dictionary access, Voice search for words, Daily Word of the Day, Vocabulary word games, Integrated thesaurus, Audio pronunciations

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.79 | per month |
| Remove Ads | $2.99 | per year |
| All References + Remove Ads | $5.99 | per year |
| Premium Annual | $9.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Comprehensive definitions
- 👍 Helpful thesaurus
- 🚀 Offline access
- 👍 Word of the day feature

**What reviewers complain about**

- 🐛 Ads can be intrusive
- 🐛 Difficulty closing ads
- 🐛 Repetitive game questions
- 🐛 Missing words in dictionary
- 🐛 Unreasonable level progression in games

**Reported bugs**

- App crashes when searching for certain words
- Widget does not update daily word
- Scribble feature is buggy
- Inconsistent ad behavior

**Requested features**

- Add spelling correction suggestions
- Improve word game timer and scoring
- Expand etymology information
- Add more languages beyond English
- Improve widget functionality


## Frequently asked questions

### Is Thai Fast Dictionary free?

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

### Is Merriam free?

Merriam is free to download, with in-app purchases available.

### Which has better reviews, Thai Fast Dictionary or Merriam?

Thai Fast Dictionary is rated higher. Thai Fast Dictionary averages 5.0 out of 5 from 1 ratings, while Merriam averages 4.8 from 328K ratings.

### Do Thai Fast Dictionary or Merriam have ads?

Both Thai Fast Dictionary and Merriam show ads.

### Which is updated more often, Thai Fast Dictionary or Merriam?

Thai Fast Dictionary ships an update every 6 weeks, and Merriam every 3 months. Most recently, Thai Fast Dictionary was updated on September 24, 2026 and Merriam on September 27, 2026.

---

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