Comparison

Russian Dictionary + vs ERReader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Russian Dictionary +

This app provides a comprehensive bilingual dictionary and translator for English and Russian. It offers offline access to over 350,000 words and phrases, along with pronunciation, translation of sentences, and image text scanning. It also includes vocabulary-building games and tools for language learners.

Highlights
  • Bilingual English-Russian dictionary
  • Offline translation for words and phrases
  • Image text scanning for dictionary lookup
  • Vocabulary building games and flashcards
  • Offline pronunciation
  • Thesaurus, synonyms, and antonyms
Features
Read full description

• Bilingual English to Russian and Russian to English dictionary • Russian to English word and phrase translator and translation • Over 350K words and phrase can be used in offline • Offline pronunciation and translate any sentences • Scan text in image by pointing camera to search in dictionary • Designed for student, teacher, tourist and language learners • Having thesaurus, synonyms and antonyms • Translate individual words, phrases, or whole sentences • Tap a word for cross searching • Bookmark and Recent history for instant recall • Word of the day to learn IELTS, TOEFL and SAT words • Multiple games help to improve English and Russian vocabulary • Offline Pronunciation helps to learn words properly • Flash card and Word of the Day helps to improve vocabulary • Phrase book, Phrase of the day and Phrase Card helps to speak common phrases • Quote of the Day improves wisdom and motivation

About

ERReader

Features
Read full description

Open an English book and some of the words are already Russian. How many is up to you: the ring turns from 0 to 100%. At 10% every tenth word is Russian. It still reads like an ordinary book, but every paragraph hands you a new Russian word in a context where the meaning is obvious without a dictionary. Your brain fills in the rest — that is how vocabulary sticks. If it does not, tap the word to see what it replaced. The alphabet is a setting, not a wall. Russian words can be shown in Latin letters (krovat'), in Cyrillic (кровать), or both at once — switch whenever you are ready, mid-page, without losing your place. Learned a word? Remove it, and the freed percent goes to the next one. — Your own books: EPUB, FB2, TXT — Fully offline: the dictionary lives inside the app — Word order never reshuffles when you change the percentage — Proper nouns and ambiguous words are never replaced — Themes, typefaces, size, line spacing — No ads, no data collection Three days free. Then ten pages a day free, or a one-time purchase — not a subscription.

Screenshots

Russian Dictionary +4 screens
ERReader4 screens

Verdict

The call

The clearest difference is ads: ERReader at none against Russian Dictionary +'s shown. ERReader also leads on update cadence (weekly vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Russian Dictionary + sells 5 one-off in-app purchases and ERReader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Russian Dictionary + ships an update every 2 months, ERReader weekly. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 8 level
Russian Dictionary + versus ERReader: the parameters behind the verdict, then further details
ParameterRussian Dictionary +ERReader
PriceFreeFree
Rating4.6 (325 ratings) — better—
Positive reviews72.9% of reviews—
Number of ratings325 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size47 MB4 MB
Age rating4+4+
DeveloperiThinkdiffYURI KOTENIATKIN

Bugs and requests

Russian Dictionary +

Reported bugs

5 issues
  • Pronunciation not working
  • App reverting to free version
  • Ads covering the screen
  • Slow loading times
  • Compatibility issues

Requested features

5 requests
  • More common/useful word coverage
  • Improved pronunciation support
  • Better explanation of word usage and context
  • Reduced advertising/paywall
  • Improved search and navigation

ERReader

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Russian Dictionary +

One-time5
  • Pronunciation$0.99
  • Online Translator$0.99
  • Flash Card$0.99
Show 2 more
  • Phrase Book$0.99
  • Unlock Full Version$9.99
1 purchases

ERReader

One-time1
  • Full access$4.99

Questions

Is Russian Dictionary + free?
Russian Dictionary + is free to download, with in-app purchases available.
Is ERReader free?
ERReader is free to download, with in-app purchases available.
Do Russian Dictionary + or ERReader have ads?
Russian Dictionary + shows ads; ERReader does not.
Which is updated more often, Russian Dictionary + or ERReader?
Russian Dictionary + ships an update every 2 months, and ERReader weekly. Most recently, Russian Dictionary + was updated on October 29, 2026 and ERReader on October 26, 2026.

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