Comparison

DefineTestTerms vs OpenDict

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

Head to head
About

DefineTestTerms

Access a comprehensive glossary of assessment terms for quick definitions. This app is beneficial for understanding general and technical terms while reading reports, attending lectures, or engaging in various educational tasks.

Highlights
  • Comprehensive glossary of assessment terms
  • Definitions for general and technical terms
  • Quick access to definitions
  • Beneficial for educational tasks
  • Accessible on iPhone and iPad
Features
Read full description

The National Association of Assessment Directors (NAAD) and ESP Solutions Group have worked together to create an app at your fingertips where you can access a comprehensive glossary/dictionary of assessment terms for quick definitions. The app includes both general and technical terms and is beneficial while reading a school report, attending a lecture, viewing a video, participating in a Zoom meeting, writing a document, nuancing a meaning, composing an assessment, or engaging in any one of many other tasks.

About

OpenDict

This app provides an extensive offline dictionary and translator with support for over 200 languages. It offers lightning-fast searches, instant translations, and detailed definitions, all without requiring an internet connection. Organize your vocabulary with custom tags and enjoy a completely ad-free and subscription-free experience.

Highlights
  • Offline dictionary and translator
  • Support for 226 languages
  • Lightning-fast offline search
  • Instant translations and definitions
  • Customizable tags for organization
  • 100% ad-free and subscription-free
Features
Read full description

Discover a comprehensive offline dictionary, translator, and language reference guide. Perfect for students, travelers, linguists, and professionals who need reliable offline language support. POWERFUL LANGUAGE SUPPORT 226 languages in your pocket 317 language pairs 1086 Open Source Sets 9.22 million precise translations and senses 11.75 million detailed definitions 99.29 million usage examples BUILT FOR SPEED Lightning-fast offline search (after downloading initially) Grouped results by parts of speech and word length Instant translations and definitions Quick bookmarking The keyboard is already open when you launch the app Efficient power user features On-device Pronunciations Bi-directional search by default SMART ORGANIZATION Organize entries with custom tags Quick bookmarking Search History Seamless, real-time device syncing and backup Highly customizable settings Cross-device synchronization OPEN AND TRANSPARENT No in-app purchases, or subscriptions 100% ad-free experience, pure functionality Data is not sold to third parties or used for advertising Only open source sets included (Wiktionary, ECDC, News-Commentary, SciELO, Tatoeba, TED2020, XLEnt) All downloaded language data inside the app is free to use, copy, modify, and transform for any purpose SUPPORTED LANGUAGES English, Finnish, German, Russian, Spanish, Chinese Mandarin, French, Portuguese, Italian, Polish, Dutch, Swedish, Hungarian, Korean, Bulgarian, Japanese, Danish, Serbo-Croatian, Czech, Catalan, Greek, Ukrainian, Romanian, Turkish, Galician, Arabic, Irish, Maori, Macedonian, Georgian, Latin, Belarusian, Armenian, Norwegian Bokmål, Vietnamese, Hindi, Persian, Hebrew, Slovak, Icelandic, Indonesian, Welsh, Thai, Estonian, Malay, Norwegian Nynorsk, Azerbaijani, Tagalog, Chinese Cantonese, Latvian, Slovene, Ancient Greek, Scottish Gaelic, Lithuanian, Kazakh, Norwegian, Khmer, Albanian, Urdu, Afrikaans, Mongolian, Occitan, Bengali, Marathi, Tajik, Yiddish, Uzbek, Swahili, Kyrgyz, Northern Kurdish, Faroese, Telugu, Basque, Burmese, Asturian, Malayalam, Lao, Manx, Sicilian, Norman, Sanskrit, Tamil, Bashkir, Uyghur, Turkmen, Maltese, Navajo, Pashto, Walloon, Breton, Central Kurdish, Luxembourgish, Campidanese Sardinian, Tibetan, Tatar, Romansch, Punjabi, Assamese, Gujarati, West Frisian, Venetan, Aromanian, Lower Sorbian, Friulian, Kannada, Scots, Quechua, Hawaiian, Cornish, Cebuano, Cherokee, Hakka Chinese, Nepali, Javanese, Amharic, Sinhalese, Crimean Tatar, Upper Sorbian, Northern Sami, Haitian Creole, Chechen, Greenlandic, Kapampangan, Yoruba, Latgalian, Yakut, Ladino, Corsican, Odia, Bikol Central, Wu Chinese, Zhuang, Assyrian Neo-Aramaic, Ossetian, Southern Altai, Eastern Min Chinese, Low German, Aragonese, Ojibwe, Zulu, Chuvash, Aramaic, Malagasy, Ngazidja Comorian, Coptic, Lombard, Hausa, Tok Pisin, Kalmyk, Sundanese, Carpathian Rusyn, Kashubian, Tigrinya, Kabuverdianu, Abkhaz, Somali, Guaraní, Erzya, Neapolitan, Eastern Mari, Alemannic German, Afan Oromo, Limburgish, Northern Frisian, Udmurt, Dhivehi, Kumyk, Old Irish, Ilocano, Old French, Sindhi, Sranan Tongo, Ladin, Shan, Romani, Chichewa, Tarifit, Mingrelian, Kashmiri, Hiligaynon, Romagnol, Adyghe, Ligurian, Classical Nahuatl, Kikuyu, Pali, Bavarian, Silesian, Papiamentu, Sylheti, Livonian, Xhosa, Komi-Zyrian, Laz, Mon, Old Javanese, Moksha, Franco-Provençal, Kabardian, Saterland Frisian, Karelian, Veps, Jeju, Fula, Middle French, Emilian, Balinese, Konkani, Afar, Mauritian Creole, Iban, Mapudungun, Lule Sami, Bambara, S'gaw Karen, Swazi, Marshallese, Makasar, Magahi, Tokelauan

Screenshots

DefineTestTerms4 screens
OpenDict4 screens

Verdict

The call

The clearest difference is update cadence: OpenDict at monthly against DefineTestTerms's every 20 months. DefineTestTerms's advantage is iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DefineTestTerms ships an update every 20 months, OpenDict monthly. The most recent releases landed on October 13, 2026 and September 23, 2026 respectively.

Scorecard2 real differences · 8 level
DefineTestTerms versus OpenDict: the parameters behind the verdict, then further details
ParameterDefineTestTermsOpenDict
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 20 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size31 MB23 MB
Age rating4+4+
DeveloperESP Solutions Group, Inc.Dominik Gyecsek

Customer experience

DefineTestTerms

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

OpenDict

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

DefineTestTerms

No in-app purchases

None

OpenDict

No in-app purchases

Questions

Is DefineTestTerms free?
DefineTestTerms is free to download, with no in-app purchases.
Is OpenDict free?
OpenDict is free to download, with no in-app purchases.
Do DefineTestTerms or OpenDict have ads?
Neither DefineTestTerms nor OpenDict shows ads.
Which is updated more often, DefineTestTerms or OpenDict?
DefineTestTerms ships an update every 20 months, and OpenDict monthly. Most recently, DefineTestTerms was updated on October 13, 2026 and OpenDict on September 23, 2026.

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