Russian Czech Dictionary

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Content rating
Everyone
10K+
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Content rating
Everyone
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About this app

Russian Czech Dictionary is a complete offline dictionary and translator built around a database of over 503,000 words. It is installed together with the app — no account, no subscription and no connection required.

Look up a word, listen to it, save it and actually learn it — all in one app.

AI ASSISTANT
• Ask AI about any word: definition & context, synonyms, pronunciation guide, example sentences
• Word not in the dictionary? Find it with AI and add it to your own database
• AI can write the description for the words you add yourself
• Keep any AI answer as the word description or save it as a note

OFFLINE DICTIONARY
• 503,000 words and translations, 100% offline
• Instant results as you type
• Search filters: starts with, ends with
• Voice search — just say the word
• Search the text you copied to the clipboard
• Alphabet index for fast browsing
• Random word button
• Add your own words and edit existing entries
• Two-way translation: Russian to Czech, Czech to Russian, or both at once

HEAR EVERY WORD
• Listen to the word and to its full description
• Separate voices for Russian and Czech
• The built-in player reads whole word lists at 0.5x, 1x or 2x speed
• Playback continues with the screen off

YOUR OWN WORD COLLECTION
• Favourites — save a word with one tap
• Bookmarks — colour-coded folders for your own topics
• Notes — attach your own note to any word
• History — every word you looked up, sorted by date, name or view count
• Multi-select mode: export, listen to, bookmark or delete many words at once
• Export your word lists to a text file and share them

LEARNING TOOLS
• Flashcards — the classic way to memorise new vocabulary
• Quiz — multiple choice test on your own words
• Listening — hear the word and choose the right answer
• Word game — guess the hidden word in 4 to 7 letters, with statistics and win streaks
• Build your own training sets: pick the source, the number of words, the order and the difficulty
• Start a training session straight from your favourites, bookmarks or history
• See what you got right and repeat only the words you missed

HOME SCREEN WIDGETS
• Word of the day widget
• Word list widget
• Training widget — learn without even opening the app

BACKUP, SYNC AND RESTORE
• Back up your favourites, bookmarks, notes, history and your own words
• Save to the cloud with your Google account, to a local file, or to Dropbox
• Restore everything on a new device in seconds

LEARNING REMINDERS
• Receive a word as a notification during the day
• Choose the time, the weekdays and the source: random, favourites, bookmarks or history

YOUR APP, YOUR SETTINGS
• Dark mode and automatic night mode
• Adjustable text size and interface colour
• Show, hide and reorder the tabs — keep only what you use
• Interface available in English, Русский, Español, Italiano, Deutsch, Français, Türkçe, Azərbaycan, Українська
• Select text in any other app to search it here or add it to your dictionary
• Full tablet and landscape support

It works as a Russian Czech dictionary and a Czech Russian dictionary, as an offline translator, as a vocabulary builder and as a language learning app.

Because the dictionary works offline, the whole database is stored on your device and takes up some space.

Write to us with suggestions, problems or legal questions: ttdicpro@gmail.com
Russian Czech dictionary offline: AI, voice search and flashcards.
Updated on
Aug 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

• New: mark words as “I know it” or “I don’t know it” — from the bottom toolbar on the word page, while training with Flashcards, or by selecting several words in a list at once.
• Marked words get a colour stripe in the lists. You can change this in Settings → Word state display.
• Add the “I know it” and “I don’t know it” lists on the Search page to see those words separately.
• Bugs fixed. Performance improved.