Learn smarter, not harder
The core of Lexum is free, forever. Pro lifts every limit and unlocks the deeper tools — for when you’re serious about building vocabulary that lasts.
Pro unlocks when Lexum launches on the App Store and Google Play. The first 50 confirmed beta testers become Founding Users — a free month of Pro at launch, and limits above Pro after that. What Founding Users get
Free
Everything you need to start learning.
- 10 translations a day
- 3 lists · 150 saved words
- 1 challenge a day
- Daily plan of 10 words
- 10 recommended words a day
- 3 alternative translations per word
- Every curated collection, levels A1 to B2
Pro
≈ $2.92/mo · 3-day free trial Billed monthly
No limits. Deeper insight. Faster progress.
- 20 translations a day
- 25 lists · 2,500 saved words
- Unlimited challenges + full history
- Flexible daily plan up to 30 words
- 30 recommended words a day
- Unlimited daily saves & sentence analysis
- Adaptive Language Engine — AI that targets your weak spots
- Curated collections at C1–C2, the advanced levels
- Full Insights & per-word stats
- 3-day free trial on yearly
- Cancel anytime
- Secure App Store / Google Play payment
USD · final price may vary by region and store
Everything, unlocked
Go unlimited
Unlimited saves, sentence analysis and challenges.
Learn deeper
Full Insights, per-word stats and per-language analytics.
More every day
20 translations, a 30-word daily plan and 30 recommendations.
More space
Up to 25 lists and 2,500 saved words.
Free vs Pro
| Free | Pro | |
|---|---|---|
| Translations / day | 10 | 20 |
| Recommended words / day | 10 | 30 |
| Lexum suggests new words to learn, chosen for your level and the topics you pick. This is how many it can suggest in a day. | ||
| Word lists | 3 | 25 |
| Saved words | 150 | 2,500 |
| Daily saves | 15 | Unlimited |
| Challenges / day | 1 | Unlimited |
| A short daily drill built from the words you're currently weakest on — a few minutes rather than a full practice session. | ||
| Daily plan | 10 words | Up to 30 + regenerate |
| Each day Lexum picks which of your saved words are due, mixing words you're about to forget with new ones. Pro sets the size and can rebuild the plan mid-day. | ||
| Sentence analyses / day | 2 | 3 |
| Paste a whole sentence and Lexum breaks it down — what each part means, why it's built that way, and which words are worth saving. | ||
| Word lookups / day | 10 | 60 |
| Inside an analysis, tap any word Lexum didn't already pick out and it explains that word as used in that sentence — not the dictionary entry, the meaning it carries there. | ||
| Translation alternatives | 3 per word | 5 per word |
| Most words have more than one translation depending on context. Lexum shows the alternatives with the sense each one carries, so you save the right one. | ||
| Adaptive Language Engine | — | Yes |
| Lexum tracks how you answer during practice — which words you miss, which pairs you confuse, which grammatical roles trip you up — and builds a profile of your weak spots. It then steers what you're shown towards them: your daily plan, challenges and recommendations all lean on it, so practice targets what you actually get wrong instead of cycling through everything evenly. | ||
| Curated collections | A1–B2 | A1–C2 |
| Ready-made word sets built around a situation, split into levels you take one at a time — around 27 words each, which is roughly a fortnight of daily practice. Every topic is free through B2; the C1–C2 levels are part of Pro. Add a level and its words join your lists and practice like any others. Collections are English-language sets for now. | ||
| Insights & per-word stats | Basic | Full |
| Your learning, measured: an estimate of your CEFR level, which categories you're weakest in, which word pairs you keep confusing, when in the day you learn best, and a per-word accuracy history. Free shows the basic charts; Pro adds the per-language breakdowns and the full history. | ||
Questions about Pro
Is there a free trial?
Yes — the yearly plan starts with a 3-day free trial. You won’t be charged until it ends, and you can cancel anytime before then.
Do I need Pro to use Lexum?
No. The core of Lexum is free, forever. Pro raises the limits and unlocks the deeper tools.
Can I cancel anytime?
Yes. Manage or cancel anytime in your App Store or Google Play settings — Pro stays active until the end of the current period.
How is payment handled?
Securely through the Apple App Store or Google Play. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends.
Build vocabulary that lasts
Lexum is launching soon. Join the beta for early access — and founding perks.
Join the beta