Sublish vs Immersea
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sublish
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Sublish — Don’t just watch. Learn. The video app that makes scrolling productive. How many times have you promised yourself to learn English, only to quit a week later? We get it. Memorizing grammar rules and vocabulary from dusty textbooks is boring. We’ve been there too. That’s why we created Sublish — a place where you master the language simply by scrolling through a feed of content you actually enjoy. What’s the secret? - The Best of YouTube at Your Fingertips We’ve curated over 10,000 videos for every taste. Love gaming reviews? Interested in AI? Or maybe you’re into cooking? With 26 content categories, you just watch what you like, and the English "sticks" naturally. - The Famous "Bubbles" Forget about hitting pause every five seconds to check a dictionary. Our smart technology, powered by Gemini AI, understands context. You don’t just get a word-for-word translation; you get the meaning of the entire phrase. It’s like having subtitles that explain slang and jokes in real-time. - AI Grammar Tutor in Your Pocket Ever feel like you know the words but don't get why the sentence is built that way? Just tap a button, and our AI tutor will break it down for you. No boring lectures—just a quick chat, like a native speaker friend explaining it to you. - Learn While You Scroll The Sublish feed works just like your favorite social media. Swipe through short videos, find what’s interesting, and pick up new phrases on the go. Perfect for making your commute or wait-time productive. - No Pressure, Just Progress. Already know a word? Swipe it away with the "I know this" button, and we won’t show it again. - Love a phrase? Save it to your personal dictionary with one tap. -Gamified Growth Track your progress and watch your vocabulary count grow. It’s more addictive than any mobile game! The world speaks English. Why not join the conversation? Download Sublish today and start understanding real-life English!
Immersea
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Learn Spanish, Japanese, and any language from the videos and podcasts you already watch, not canned lessons. Immersea turns YouTube links, podcast episodes, and your own files into interactive language lessons. Read along and learn with subtitles synced to playback: dual captions in the source language and yours. Tap any word for an instant definition, save it to your vocabulary list, and review with flashcards and spaced repetition practice. WHY IMMERSEA Most apps teach from their own curriculum. Immersea lets you learn from real content in the language you choose: Spanish, French, Japanese, Korean, German, and more. Bring a YouTube video, a podcast episode, or a file you care about. Immersea adds dual subtitles, tap-to-learn definitions, and a personal word library. HOW IT WORKS 1. Paste a YouTube link, podcast URL, video file, or text 2. Choose the language you are learning 3. Follow along with dual captions synced to playback 4. Tap any word for meaning, examples, and pronunciation 5. Save words to your vocabulary library 6. Practice with flashcards and spaced repetition when words are due FEATURES • Learn Spanish, Japanese, Korean, and more from YouTube, podcasts, and video • Dual subtitles: source language + your learning language • Tap any word for AI definitions in context • Build your personal vocabulary from real content • Flashcards and listening practice • Spaced repetition: review words at the right time • Works with content you find, not a fixed course library PERFECT FOR • Learners who want language immersion from native content, not drills • Intermediate learners building vocabulary from real speech • Anyone who learns best from podcasts, vlogs, and real-world video Start with a link you love. Turn it into a lesson. Build vocabulary you will actually use, in whatever language you are learning. Download Immersea and learn from content that keeps you watching. LEGAL Privacy Policy: https://immersea-web.vercel.app/privacy Terms of Use: https://immersea-web.vercel.app/terms Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Sublish at none against Immersea's 2. Immersea's advantage is ads (none vs shown). On price, update cadence, 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
Both are free to download. Immersea sells 2 in-app purchases, starting at $7.99 per month. Sublish asks for nothing beyond the download.
Sublish ships an update fortnightly, Immersea every 10 days. The most recent releases landed on September 15, 2026 and September 7, 2026 respectively.
| Parameter | Sublish | Immersea |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 178 MB | 54 MB |
| Age rating | 17+ | 4+ |
| Developer | Dmitriy Zaretskiy | Amine Elbarry |
In-app purchases
Sublish
No in-app purchases
Immersea
- Immersea Monthly Plan3 Days trial$7.991 Month
- Immersea Yearly Plan$59.991 Year









