Terminology vs Thesaurus dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Terminology
Explore the English language with this comprehensive tool. It offers dictionary and thesaurus functions, along with research capabilities to dive deeper into words and phrases. Extend its functionality with custom resources for web and app searches.
- Offline U.S. English dictionary
- Synonyms, antonyms, and word relations
- Customizable resources for web and app searches
- Favorite and create term lists
- Audio pronunciations
- Wildcard and spelling suggestions
- iCloud sync and backup
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Terminology is a browser for the English language – part dictionary, part thesaurus and part research tool. Terminology makes it easy to explore words and phrases, diving down to more and less specific terms - accessing web resources and other apps for more detail and sharing. More than a dictionary, Terminology can be extended with custom resources to search the Internet and other reference apps – making it a great place to satisfy any of your curiosities. ## DICTIONARY, THESAURUS & SEARCH ## - Offline U.S. English dictionary and word reference with simple, straightforward definitions. Based on the latest version of the Open English WordNet - Definitions, synonyms, antonyms, and deeper word relations such as more and less specific words, part, part of, members, member of, pertains to, and more - Favorite and create lists of terms - Word browsing history - Add your notes to any term - Audio pronunciations - Wildcard (?,*) searching - Spelling suggestions - Fast, reliable iCloud (CloudKit) sync and backup of history, favorites, notes, and resources ## EXTENSIBLE RESOURCES ## Resources provide quick links to look up and search your terms on websites and in other apps. Ready to use resources for popular reference sites like Wikipedia, ChatGPT, Google, IMDb, and more, or create your own with simple URL templates. Get more creative with AI resources to drill down on pre-populated prompts. ## MORE FEATURES ## - Share extension lets you access Terminology from a text selection in any app - Control Center integration for quick search - Spotlight and Handoff support - Great support for Accessibility features like VoiceOver and Dynamic Text. - Shortcuts support ## TERMINOLOGY PRO ## Terminology is always free to use, but you can get more out of the app with a Terminology Pro: * Custom resources * Unlimited term lists * Unlimited notes per term Terminology Pro is a reasonable annual subscription, or a one-time lifetime unlock. ## SUBSCRIPTION DETAILS ## * Payment will be charged to your Apple account at confirmation of purchase * Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period * Automatic renewals will be charged at the same price you were initially charged for the subscription * Subscriptions can be managed or canceled by going to Account Settings on the App Store after purchase Have questions? Email support@agiletortoise.com. Terms: https://agiletortoise.com/terms Privacy Policy: https://agiletortoise.com/privacy-policy
Thesaurus dictionary
Enhance your writing by accessing a thesaurus directly from your keyboard. Select any word in any app to instantly see synonyms and related terms, helping you expand your vocabulary and refine your text. This ad-free tool offers a simple and effective way to improve your communication.
- Keyboard thesaurus integration
- Instant word suggestions
- Synonym lookup in any app
- Ad-free experience
- Simple interface
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Improve your writing with alternative word suggestion with a thesaurus built right into your keyboard. Just select a word and get similar words in any app your working in. Ad free and simple. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/thirtynineapps-privacy/home
Screenshots
Verdict
The clearest difference is review sentiment: Terminology at 72% against Thesaurus dictionary's 33%. Terminology also leads on rating (4.7 vs 4.5) and ratings volume (1.1K vs 291). Thesaurus dictionary's advantage is iOS requirement (16.0 vs 18.0). 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
Both are free to download. Terminology sells 2 in-app purchases, starting at $4.99 per year and Thesaurus dictionary sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Terminology holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 1.1K and 291 respectively. Written reviews point the same way: 72% of Terminology's written reviews are positive against 33% of Thesaurus dictionary's.
Terminology ships an update monthly, Thesaurus dictionary every 3 weeks. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.
| Parameter | Terminology | Thesaurus dictionary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.1K ratings) — better | 4.5 (291 ratings) |
| Positive reviews | 71.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 1.1K — better | 291 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 100 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Agile Tortoise | LEAP STUDIO |
Customer experience
Terminology
Thesaurus dictionary
Bugs and requests
Terminology
Reported bugs
3 issues- Keyboard does not always appear when tapping search
- Crashes or freezes on some devices
- Difficulty adjusting volume for word pronunciations
Requested features
5 requests- Add ability to review and manage favorite words
- Implement quiz or flashcard features for learning new words
- Improve keyboard integration and shortcuts
- Add more comprehensive dictionary coverage
- Provide option to revert to previous app version
Thesaurus dictionary
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Terminology
- Pro - Annual$4.991 Year
- Lifetime$19.99
Thesaurus dictionary
- Weekly7 Days trial$1.997 Days
- Monthly$4.991 Month
- Yearly$24.991 Year







