ProWord vs Duolingo — Vocabulary Builder vs Language Course
Duolingo and ProWord are solving different problems. Duolingo teaches language through full sentences and structured lessons — it's a course in five-minute daily sessions. ProWord builds vocabulary specifically: the words, their meanings, IPA pronunciation, and long-term retention through spaced repetition. Many serious learners use both — Duolingo for grammar and sentence structure, ProWord for vocabulary depth. If your bottleneck is "I don't know enough words," ProWord is the more direct fix. If you want a complete structured course, Duolingo covers that ground.
Feature comparison
| Feature | ProWord | Duolingo |
|---|---|---|
| Vocabulary focus | Purpose-built vocabulary SRS — 1,295 curated words with IPA + sentences | Vocabulary embedded in sentence-based lessons |
| AI card generation | Generate complete flashcards for any word | Not available |
| Grammar & full courses | Vocabulary only — no grammar instruction | Structured courses covering grammar, reading, listening, speaking |
| Languages available | 4 content languages (en, es, hr, uk) | 40+ languages with full courses |
| Spaced repetition | True 3-7-14 SRS — each word scheduled at optimal intervals | Review sessions exist, but not a primary SRS system |
| Ads on free tier | No ads on any tier | Ads between lessons on the free tier |
| Audio / pronunciation | IPA transcription + TTS on every card | TTS + speaking exercises |
| Gamification | Paw system, island roadmap, 7 mini-games | Streaks, leagues, hearts, XP — industry-leading |
| Social features | Solo vocabulary building | Leaderboards, friends, leagues |
| Croatian / Ukrainian | Full CEFR A1–B2 vocabulary in both languages | Ukrainian available; Croatian not a base learning language as of 2026 |
Where ProWord wins
- Purpose-built for vocabulary — every word gets IPA transcription, a native example sentence, and spaced-repetition scheduling
- AI card generator lets you extend beyond 1,295 curated words to any vocabulary you need
- No ads on any tier (Duolingo free tier shows ads between lessons)
- Full Croatian vocabulary (A1–B2) — not available on Duolingo
- Faster pure vocabulary acquisition per minute of study
Where Duolingo wins
- Complete structured language courses covering grammar, listening, reading, and speaking — not just vocabulary
- Covers 40+ languages; ProWord supports 4
- More social features and competitive elements (leagues, streaks with friends)
Bottom line
Use Duolingo for structured language learning. Use ProWord when you specifically need more vocabulary and want a direct, science-backed path from A1 to B2. They're not competing tools — many learners use both and get more out of either because of it.
Frequently asked questions
- Is ProWord better than Duolingo for learning vocabulary?
- For vocabulary specifically, yes — ProWord uses true spaced repetition with IPA transcriptions and dedicated example sentences per word. Duolingo builds vocabulary through sentence exercises, which is effective for grammar but slower for pure word acquisition. Most learners who track their vocabulary growth notice faster word retention when they combine Duolingo's grammar practice with a dedicated SRS like ProWord.
- Does ProWord teach grammar?
- No. ProWord is purely a vocabulary app. For grammar instruction, sentence comprehension, and structured language courses, Duolingo and tools like Babbel are the right choice. ProWord works best alongside a course, not instead of one.
- Does Duolingo have Croatian?
- As of 2026, Duolingo does not offer Croatian as a learning language from English. ProWord supports Croatian as both a source and target language with 1,295 curated words from A1 to B2 — making it one of the few vocabulary apps with a proper CEFR-graded Croatian deck.
- Which is better for Ukrainian learners?
- Both apps support Ukrainian, but in different ways. Duolingo offers an English-from-Ukrainian course and a Ukrainian-from-English course. ProWord lets you learn Ukrainian vocabulary from any of its 5 UI languages (English, Spanish, Croatian, Ukrainian, Russian) using its SRS system. If you want to build Ukrainian vocabulary specifically, ProWord's 1,295 graded words are more directly useful.
Five minutes a day. Words that stay.
Free to start on iOS and Android. No credit card to try — Premium only when you're ready.
