Hi, I’m Stas, the maker of Pract. I built it because unfamiliar words kept interrupting my English PDF reading: copy a word, switch to Google, then find my place again. Pract lets you select a word or phrase, read a simple contextual meaning and example, and continue. Saved vocabulary stays on your device, with offline revisiting and CSV export/import. This is an early Android APK beta, not a Play Store app. New AI explanations require your own eligible Gemini key. Selectable-text PDFs only; no OCR or EPUB. AI answers can be wrong. Selected text and up to 500 nearby characters go to Google, so don’t use confidential documents. This free-key beta is for adults in supported regions outside the EEA, UK and Switzerland; please read the website’s eligibility and privacy notes. I’ve tested it on my Samsung S24 FE. I’d love feedback on whether it preserves your reading flow—and whether installation or API setup gets in the way.

Pract

Understand English words without leaving your PDF

Understand English words without leaving your PDF