Brzi srpski vs Bulb
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Brzi srpski
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By listening to music and to everyday language, train your ear and your brain to hear and decipher Serbian when spoken at full speed. You will become skilled enough to independently translate the lyrics of any new song you like, and ultimately watch Serbian movies without subtitles and understand what they are about. Two hours of music with timeless hits from various artists, carefully chosen for educational value, ordered from easy to hard, meticulously transcribed by a native speaker with a teacher authority, and properly translated to communicate the essence. And then, additional two and a half hours of regular everyday language spoken by regular people from the street, also transcribed and translated in detail. With almost six thousand different word forms, hundreds of different voices, more than four hours of content that you can listen on the go, and features that allow deeper reading analysis, this app can keep you busy for a very long time, and is practically guaranteed to teach your brain the impossible. Primarily for listening and understanding, but you are guaranteed to want to sing some of these on your own, so you will acquire significant speaking skills too. Primarily for Serbian, but note that the grammar for Serbian, Croatian, Bosnian, and Montenegrin is exactly the same, and so are most of the words, so essentially you get four at the price of one.
Bulb
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Learn languages by reading real books and browsing websites. Tap any word for instant translation, build vocabulary from what you read, and improve your writing with AI feedback. Bulb is for people who want to learn through authentic content instead of gamified drills. Import EPUB books, browse foreign-language websites with built-in translation, and use AI feedback to improve your writing. === HOW IT WORKS === READ REAL BOOKS Import EPUB books in your target language. Tap any word for instant translation and pronunciation. Save words to your vocabulary as you read. Double-tap sentences for full context. Create bookmarks and highlights. BROWSE AND TRANSLATE WEBSITES Read news, articles, and blogs in your target language with built-in translation. Tap unfamiliar words for definitions. Save vocabulary while browsing. Practice with real-world content that interests you. BUILD VOCABULARY IN CONTEXT Every word you look up is saved with its original sentence. Review with spaced repetition flashcards generated from your reading. Practice translating sentences back and forth. Learn words as they are actually used. GET AI WRITING FEEDBACK Write essays, emails, or journal entries and receive detailed analysis of grammar, style, and vocabulary. See specific error patterns with visual charts. Get suggestions tailored to your level. Track your improvement over time. === WHO IT IS FOR === - Professionals improving business English or foreign-language writing for work - Students preparing for language exams with real reading and writing practice - Book lovers who want to read novels and nonfiction in other languages - Learners who prefer authentic content over artificial lessons and gamified drills === SUPPORTED LANGUAGES === English, Spanish, French, German, Chinese, Japanese, Italian, Portuguese, Russian, Korean, Arabic, Serbian === KEY FEATURES === - EPUB reader with tap-to-translate - Built-in web browser with instant translation - Automatic vocabulary capture with context - Spaced repetition flashcards - AI essay analysis with grammar, style, and vocabulary feedback - Writing progress tracking with visual charts - iCloud sync across all your iOS devices Built for focused reading, vocabulary, and writing practice without gamified drills. Requires internet connection for AI features and translation. Privacy Policy: https://thebulb.app/privacy Terms of Service: https://thebulb.app/terms
Screenshots
Verdict
The clearest difference is price: Bulb at Free against Brzi srpski's $2.99. Bulb also leads on update cadence (every 5 days vs every 3 weeks). Brzi srpski's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 17.0). On ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Bulb is free to download; Brzi srpski costs $2.99 up front. Bulb sells 3 in-app purchases, starting at $2.99 per 7 days. Brzi srpski asks for nothing beyond the download.
Brzi srpski ships an update every 3 weeks, Bulb every 5 days. Both last shipped on October 30, 2026.
| Parameter | Brzi srpski | Bulb |
|---|---|---|
| Price | $2.99 | Free โ better |
| Update frequency | Every 3 weeks | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 11.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 10 MB | 40 MB |
| Age rating | 9+ | 17+ |
| Developer | Sasa Stevanovic | Danis Gaiazov |
In-app purchases
Brzi srpski
No in-app purchases
Bulb
- Premium Weekly$2.997 Days
- Premium Monthly7 Days trial$6.991 Month
- Premium Annual7 Days trial$49.991 Year









