The best apps to improve your English vocabulary for work
Updated 28 October 2026 · By Menyin Chang, who makes Headword. Headword is one of the apps below; the others are described as their own App Store pages describe them.
Short answer. If you already work in English and want to use better words, not only recognize them, choose an app that makes you produce the word: type it, say it, write a sentence with it. Headword does that for iPhone. WordUp is the broadest word list, Elevate trains general communication, and Anki is best for your own work terms.
How to choose
Most vocabulary apps test recognition: you see a word and pick its meaning from four options. That is how a word becomes familiar. It is not how a word becomes yours. A word you can use in a meeting is one you have had to produce, from memory, in a sentence of your own. The research behind this is old and consistent: words you generate or say aloud are remembered better than words you only read (Slamecka & Graf, 1978; MacLeod et al., 2010), and being tested beats rereading (Karpicke & Roediger, 2008).
Four questions sort the apps quickly:
- Does it make you produce the word, or only pick it from a list?
- Are the words useful at work, or rare words chosen to impress?
- Does it tell you the register: formal, neutral, informal? A word that fits an essay can sound odd in an email.
- Does it bring words back before you forget them (spaced repetition)?
The apps, side by side
| App | Best for | How it teaches | Platforms | Price model |
|---|---|---|---|---|
| Headword | Non-native professionals who want to write and speak with more exact words | One word a day as a full entry; practice that has you type, spell, say and write it; spaced repetition | iPhone | Free daily word; Plus subscription or lifetime |
| WordUp | Building a broad vocabulary, ordered by how useful each word is | A 25,000-word core list, several challenge types, spaced repetition, an AI tutor | iPhone, Android | Free with paid plans |
| Elevate | General communication and mental sharpness | 40+ short brain-training games, some on reading and speaking | iPhone, Android | Free version; subscription |
| AnkiMobile | Your own work vocabulary: terms from your field, your company, your exams | Flashcards you write yourself, with a strong spaced-repetition scheduler | iPhone (paid); free on Android, desktop and web | One-time purchase on iPhone |
| Vocabulary.com | Students and readers who like adaptive quizzes | Multiple-choice questions that adapt to your level | Web, iPhone, Android | Free with paid options |
| Vocabulary (Monkey Taps) | A new word on your Lock Screen with little effort | A daily word with widgets and notifications | iPhone | Free with Premium plans |
Prices change by country and over time, so check each App Store page before you pay. Features are as each app describes itself in October 2026.
Headword
Choose it if you already work in English, your sentences are correct but plain, and you want to sound precise instead of approximate. Each day brings one word as a full dictionary entry: definition, register note (formal, literary, informal), two example sentences, a General American IPA transcription and a recorded pronunciation, synonyms, opposites and the words it usually goes with. Practice then makes you use it: complete a sentence by typing the word, spell it from its sound, choose the word that fits the tone, say it aloud, and write your own sentence. As a word gets stronger the questions get harder. Review brings words back on a spaced-repetition schedule (FSRS).
Skip it if you use Android or an iPad-first setup, you are a beginner (the words assume upper-intermediate English), or you want hundreds of new words a week. Headword is deliberately slow: one word a day free, five or ten with Plus. About 4,000 words in total.
WordUp
Choose it if you want breadth. WordUp maps what you already know against a 25,000-word list ranked by usefulness, then teaches the gaps with varied challenges, spaced repetition and an AI chat tutor. Skip it if you want depth on fewer words, or you mostly need help choosing the right word for a formal email.
Elevate
Choose it if vocabulary is one part of a wider goal: focus, memory, reading speed and speaking confidence, trained in short daily games. Skip it if you specifically want English vocabulary for work: Elevate is a general brain-training app, written for native speakers.
AnkiMobile
Choose it if your problem is your own field's terms: compliance, medicine, engineering, a client's product names. You write the cards, and Anki's scheduler is among the best. Skip it if you want someone else to choose the words, write the examples and tell you the register: Anki gives you an empty box.
Vocabulary.com
Choose it if you enjoy quiz-style learning and want an app that adapts to your level, with a strong web version. Skip it if you want to practice producing words rather than recognizing them.
Vocabulary.com on the App Store
Vocabulary (Monkey Taps)
Choose it if you want a light habit: a word on your Lock Screen every day, with very little to do. Skip it if you want the word to stay: seeing a word is exposure, not practice.
Where Headword falls short
It is iPhone only. It does not grade your free-written sentences: you compare yours with the entry's examples and rate it yourself. The interface is in English and Spanish only, though the words are English for everyone. And at one word a day, the free version is a habit, not a course.
Sources
- Slamecka, N. J., & Graf, P. (1978). The generation effect. Journal of Experimental Psychology: Human Learning and Memory, 4(6).
- MacLeod, C. M., et al. (2010). The production effect: Delineation of a phenomenon. Journal of Experimental Psychology: Learning, Memory, and Cognition, 36(3).
- Karpicke, J. D., & Roediger, H. L. (2008). The critical importance of retrieval for learning. Science, 319(5865).
Related: How to improve your English vocabulary for work · Headword FAQ