Spanish Dictionary + vs Parallel Books
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spanish Dictionary +
This app provides a comprehensive bilingual dictionary and translator for English and Spanish. It offers offline access to over 350,000 words and phrases, along with pronunciation, text scanning, and vocabulary-building games. Ideal for students, travelers, and language enthusiasts looking to improve their skills.
- Bilingual English-Spanish dictionary
- Offline translation for words and phrases
- Text scanning via camera
- Vocabulary games and flashcards
- Offline pronunciation
- Thesaurus, synonyms, and antonyms
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• Bilingual English to Spanish and Spanish to English dictionary • Spanish 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 Spanish 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
Parallel Books
Learn a new language by reading books with side-by-side translations. This app keeps translations synchronized as you read, allowing for full immersion. Easily switch between display modes and add notes for a personalized learning experience.
- Dual language display
- Synchronized translations
- Adjustable display modes
- Searchable notes
- Day/night themes
- Highlighting
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Become fluent in a new language. Read a book in your new tongue while having a parallel copy in your native language handy for reference. Now thanks to Parallel Books, this technique is available on iPad, iPhone and iPod touch. Translations will automatically stay in sync, leaving you free to be immersed in the words on the page. Reading a book in two different languages at the same time has never been easier! - Designed for people learning a new language. - Displays a book simultaneously in two different languages. - Translations stay in sync as you read. - Stretchy, “chewing gum" overlay visually connects parallel content. - Chewing gum overlay can be hidden. - Translations can be displayed in two columns on the screen, or each translation can fill an entire screen. - Continuously scrolls or pages through content without needing to change mode. - Tapping on a paragraph shows the translation of that paragraph. - Double tapping hides tool bars, giving more space. - Multicolored highlights and searchable notes can be added. - Includes day and night themes. - Currently books are available in English, German, French, Spanish, Portuguese, Russian, Italian, Dutch, Swedish, Esperanto, Korean, Chinese, Arabic plus more. - Some books include multiple translations in the same language; ideal for literature and translation students. - Parallel Books is in development for other platforms. - New books are being added all the time. - All books are currently FREE.
Screenshots
Verdict
The clearest difference is in-app purchases: Parallel Books at none against Spanish Dictionary +'s 5. Parallel Books also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.6). Spanish Dictionary +'s advantage is review sentiment (69% vs 40%) and update cadence (every 2 months vs every 3 months). On price and device support 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
Both are free to download. Spanish Dictionary + sells 5 one-off in-app purchases. Parallel Books asks for nothing beyond the download.
Spanish Dictionary + ships an update every 2 months, Parallel Books every 3 months. The most recent releases landed on September 25, 2026 and August 28, 2026 respectively.
| Parameter | Spanish Dictionary + | Parallel Books |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.9K ratings) — better | — |
| Positive reviews | 69.4% of reviews — better | 40.0% of reviews |
| Number of ratings | 1.9K — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 39 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | iThinkdiff | High Tea IT Limited |
Customer experience
Spanish Dictionary +
Parallel Books
Bugs and requests
Spanish Dictionary +
Reported bugs
3 issues- Crashes on launch for some users
- Difficulty finding the search function
- Inconsistent behavior when switching between English and Spanish
Requested features
5 requests- Audio pronunciations for words
- More comprehensive vocabulary coverage
- Inclusion of common phrases and idioms
- Verb conjugation information
- Ability to toggle off 'Word of the Day' feature
Parallel Books
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Spanish Dictionary +
- Spanish English Dictionary Offline Pronunciation$0.99
- Spanish English Dictionary Online English Spanish Translation$0.99
- Spanish English Dictionary Flash Card Word Learning$0.99
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- Spanish English Dictionary Travel Phrase Book$0.99
- Unlock Full Version$9.99
Parallel Books
No in-app purchases
Questions
Is Spanish Dictionary + free?
Is Parallel Books free?
Do Spanish Dictionary + or Parallel Books have ads?
Which is updated more often, Spanish Dictionary + or Parallel Books?
Other comparisons
