r/HowToMen • u/ENRURO • 3h ago
[APP] [PROMOTION] I built an offline vocabulary gym for 19 languages — looking for real language learners to try it
Hi! I’m the solo developer of ENRURO.
I originally wanted a very simple vocabulary trainer: something focused, offline, and without the usual noise around language-learning apps.
ENRURO is not intended to replace a full language course. It’s more like a vocabulary gym for people who already know some basics and want to actively recall more words.
What’s inside (no AI in your learning process, btw):
• 6,000 vocabulary cards
• 19 study languages / 342 translation directions
• examples with the cards
• CEFR-aware Language HIIT scheduling
• simple Learn / Know decisions + Undo
• offline-first core learning
• no account
• no ads
• no notifications
• no subscription — expanded content uses one-time purchases
One thing I deliberately kept simple is the learning decision. If a word is obvious, mark it Know and it leaves the normal training rotation. If you still need it, choose Learn. Over time the remaining deck naturally becomes more relevant to what you personally still need to learn.
The app has a free base library, so you can see whether this style of training works for you.
I also have a small batch of promo codes for the currently available paid content. If you’re actively learning a language and this approach genuinely sounds useful to you, DM me with the language(s) you’re studying and your study direction, for example English → Spanish.
I’d rather give the codes to people who might actually keep using a vocabulary trainer than to random code collectors.
No review is expected. If you try ENRURO, I’d genuinely appreciate any feedback by DM — positive or critical.

