Voice practice
Speak your answers instead of typing them. Hands-free practice with a spoken prompt, spoken answer and spoken feedback.
Features
Everything you need to actually remember a word.
Retlo brings learning, recall, feedback and review into one place. Every feature listed here works in the product today.
AI coaching
Your answer is evaluated on meaning, not exact wording, and you get feedback written for the answer you actually gave.
Word library
Every word with its definition, simple meaning, example, synonyms, antonyms and a mnemonic — searchable and filterable.
Pronunciation
Hear any word spoken aloud from the word detail page so you know how it sounds, not just how it reads.
Adaptive practice
Sessions are built around what you need: overdue reviews, words you struggle with, new words and the occasional mastered word.
Personalised review
Words come back on a schedule that reacts to how well you recalled them, so difficult words return sooner.
Progress tracking
See words studied, mastered, learning and needing review, plus accuracy and your daily practice goal.
A coach you practise with
Retlo asks, you answer out loud, and it tells you whether you had it — then adapts what comes next.
Example session
Your coach asks
What does alacrity mean?
You said: It means eager willingness.
Retlo said: Correct. Nice work.
Listening — speak your answer
Example word
Aloof
Learning/əˈluːf/
- Definition
- Not friendly or forthcoming; cool and distant.
- Simple meaning
- Keeping your distance from other people.
- Example
- He stayed aloof from the rest of the group all evening.
- Synonyms
- Detached, distant, remote
- Antonyms
- Friendly, warm, sociable
- Mnemonic
- A-LOOF — someone up on the roof, far above everyone else.
Progress3 of 5 reviews
Every word, fully explained
Definition, simple meaning, example sentence, synonyms, antonyms, a mnemonic and pronunciation — plus your own progress on that word.
Progress you can read at a glance
Retlo keeps track of how each word is going so you always know what still needs attention.
Example progress
Your vocabulary
- Words studied
- 128
- Mastered
- 46
- Learning
- 57
- Needs review
- 25
- Accuracy
- 78%
- Day streak
- 9
Illustrative example — your own numbers come from your practice.