Comparison

Dictionary.com vs Thai Fast Dictionary

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

Head to head
About

Dictionary.com

Access over 2 million trusted definitions and synonyms for English words. Enhance your vocabulary with daily new words, example sentences, and audio pronunciations. This app provides grammar tips and editorial content to deepen your understanding of the English language.

Highlights
  • 2 million+ definitions and synonyms
  • Word of the Day
  • Example sentences
  • Audio pronunciations
  • Grammar tips
  • Search history
Features
Currently charting
Read full description

Download the #1 free dictionary app! With more than 2 million trusted definitions and synonyms, this English dictionary and thesaurus app for iPhone is optimized for your mobile device. Improve your English vocabulary, whether you're just starting your learning journey or you're already a word wizard. Install the app for access to definitions and synonyms whenever and wherever you need them — no bulky books necessary. Flip to dark mode to give your eyes a break, or stick to the traditional set-up. In addition to the trusted reference content from Dictionary.com and Thesaurus.com, this education app includes: Word of the Day ► Learn a new word each day and expand your vocabulary. Example Sentences ► Browse real-world example sentences to see how words are used. Idioms ► Explore how words can gain new meanings. Rhymes ► Finish every verse. Audio Pronunciations ► Never mispronounce another word. Grammar ► Get grammar tips, word usage, and more to improve your writing. Editorial Articles ► Explore editorial content for features on words, the origins of the English language, and the nuances that make English so complicated and unique. Search History ► Customize your recently searched word list, and never forget the newest words you’ve learned. Dictionary Shuffle ► Think you know ALL the definitions? Prove it with Dictionary Shuffle, which chooses a word at random and brings you to the definition. A-Z Dictionary ► What’s more exciting than ... wait for it … browsing the Dictionary?! We’ve now made it even easier, with the A–Z Dictionary.

About

Thai Fast Dictionary

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
Read full description

Thai Fast Dictionary is a Thai↔English dictionary built for speed. The entire dictionary lives on your device, so lookups are instant — no internet connection required. FEATURES • Instant Thai↔English word lookup, no waiting on a server • Clear definitions with parts of speech, example sentences, and synonyms • Search history and a favorites list, so you can find words you've looked up before • Two vocabulary games — Quiz and Hang Pig — to help you learn as you go • Works fully offline once installed Whether you're a Thai speaker learning English or an English speaker learning Thai, Thai Fast Dictionary keeps a complete dictionary in your pocket. Thai Fast Dictionary is free to use, supported by ads. An optional Advance Access subscription removes ads and unlocks unlimited daily lookups. Subscription terms: • Advance Access is available as a monthly or yearly auto-renewing subscription, billed to your Apple ID • Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period • Manage or cancel anytime in your Apple ID account settings • Payment is charged to your Apple ID account upon confirmation of purchase Privacy Policy: https://thaifastdict.com/privacy_policy.html Terms of Use: https://thaifastdict.com/term_of_use.html

Screenshots

Dictionary.com4 screens
Thai Fast Dictionary4 screens

Verdict

The call

The clearest difference is review sentiment: Thai Fast Dictionary at 60% against Dictionary.com's 26%. Thai Fast Dictionary also leads on rating (5.0 vs 4.8) and iOS requirement (14.0.0 vs 16.0). Dictionary.com's advantage is ratings volume (328K vs 1) and chart position (#128 vs unranked). On price, update cadence, ads and in-app purchases 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. Dictionary.com sells 9 one-off in-app purchases and Thai Fast Dictionary sells 7 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Thai Fast Dictionary holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Dictionary.com has 328K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 26% of Dictionary.com's written reviews are positive against 60% of Thai Fast Dictionary's.

UpkeepUpdate frequency

Dictionary.com ships an update monthly, Thai Fast Dictionary every 6 weeks. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 6 level
Dictionary.com versus Thai Fast Dictionary: the parameters behind the verdict, then further details
ParameterDictionary.comThai Fast Dictionary
PriceFreeFree
Rating4.8 (328K ratings)5.0 (1 ratings) — better
Positive reviews25.8% of reviews59.6% of reviews — better
Number of ratings328K — better1
Update frequencyMonthly — betterEvery 6 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#128 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.014.0.0 — better
Further details — not scored
Size35 MB143 MB
Age rating12+4+
DeveloperCuriosity MediaTHAI FAST COMPANY LIMITED

Customer experience

Dictionary.com

All ratings327,783 ratings
Positive95.5%
Neutral2.0%
Negative2.5%
Written reviews1,381 reviews
Positive25.8%
Neutral9.2%
Negative65.0%

Thai Fast Dictionary

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews94 reviews
Positive59.6%
Neutral3.2%
Negative37.2%

Bugs and requests

Dictionary.com

Reported bugs

5 issues
  • Notifications not working as expected
  • Inconsistent behavior when tapping on words
  • Offline dictionary not downloading properly
  • Frequent crashes and freezes on various devices
  • Paid features not unlocking or resetting unexpectedly

Requested features

5 requests
  • Dedicated section to display all forms of a word
  • Ability to create and manage custom word lists
  • Improved offline mode with more functionality
  • Better integration with other productivity apps
  • More language support beyond just English

Thai Fast Dictionary

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Dictionary.com

One-time9
  • Rhyming Dictionary$1.99
  • Grammar & Tips$1.99
  • Idioms & Phrases$1.99
Show 6 more
  • Example Sentences$2.99
  • Science Dictionary$2.99
  • Encyclopedia$2.99
  • Offline Dictionary$2.99
  • Remove Ads$2.99
  • Power Pack$5.99
7 purchases

Thai Fast Dictionary

Subscriptions4
  • Advance features$0.991 Month
  • Offline IPA with no Ads$2.991 Year
  • English meaning and samples$2.991 Year
Show 1 more
  • Advance features$4.991 Year
One-time3
  • Point 1000 pts$2.99
  • Point 5500 pts$12.99
  • Point 12000 pts$29.99

Questions

Is Dictionary.com free?
Dictionary.com is free to download, with in-app purchases available.
Is Thai Fast Dictionary free?
Thai Fast Dictionary is free to download, with in-app purchases available.
Which has better reviews, Dictionary.com or Thai Fast Dictionary?
Thai Fast Dictionary is rated higher. Dictionary.com averages 4.8 out of 5 from 328K ratings, while Thai Fast Dictionary averages 5.0 from 1 ratings.
Do Dictionary.com or Thai Fast Dictionary have ads?
Both Dictionary.com and Thai Fast Dictionary show ads.
Which is updated more often, Dictionary.com or Thai Fast Dictionary?
Dictionary.com ships an update monthly, and Thai Fast Dictionary every 6 weeks. Most recently, Dictionary.com was updated on September 26, 2026 and Thai Fast Dictionary on September 24, 2026.

Other comparisons