# Deep In: Language Immersion > Language immersion app using real YouTube videos and interactive subtitles. (iPhone/iPad app by DEEP IN.) - Source: https://appshunter.io/ios/app/deep-in-language-immersion/id6784153530 (this page in markdown: same URL + `.md`) - Developer: [DEEP IN](https://appshunter.io/developer/6784153532) - Category: Education, Reference - Price: Free with in-app purchases - Rating: 5.00/5 from 4 App Store ratings · 3 written reviews indexed - Age rating: 17+ - Requires: iOS 15.1 · 72 MB - Languages: American English - Released: 2026-08-13 - Data updated: 2026-09-13 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/deep-in-language-immersion/id6784153530/reviews.md ## What is Deep In? Here you don't learn a language — here you feel it. You watch real YouTube videos in English and take apart whatever you didn't catch, right where you are. The difference: not lessons, immersion. ONE LINE, ALL THE WAY DOWN Someone in the video says "she's so game." Every word is familiar. Game — a game? No: she's completely up for it. A dictionary hands you one meaning and stops there. Solomia keeps going: why "game" and not "ready", who you can say it to, and three more places it turns up. NOT THE USUAL WAY No dull lessons, no homework. No invented dialogues and no manufactured topics. No practice with a teacher who isn't a native speaker either. Everything here is the real thing from the start: you just watch video in the original, on the subjects you actually care about. You learn to understand native speakers — their imperfect, spoken, real language. And you fill your vocabulary with the words and phrases they actually use. AN ENORMOUS CATALOGUE From travel vlogs to talks on anything you like. History, hiking, AI. Podcasts, stand-up, interviews, TV shows. Or add any YouTube video to your own space yourself. You watch what interests you and learn the language at the same time. INTERACTIVE SUBTITLES Stop at any moment and take apart what you didn't get. Subtitles in two languages. Any moment can go deep with Solomia, and any word or phrase can be kept — together with the sentence it came from. A VOCABULARY YOU COME BACK TO Review what you kept as flashcards, or work it through with Solomia. She brings your own words back into conversation, in new examples, until they arrive without you reaching. SOLOMIA, OUT LOUD So that you don't only understand and know a lot, but can actually speak. Talk about the video you just watched the way you would with a friend. Or ask how to say something. No appointment, and nobody else in the room. COMPLETE FREEDOM You do and watch what you want, when you want, as much as you want. No compulsory rigid programme. Only your pace, your taste and your own responsibility. WHY IT WORKS It's like stepping into the language itself. Closer to how a child learns to understand, and then to speak, their first language. They just listen, and then try. Nobody teaches them grammar or rules. By their first lesson they already understand everything — and speak freely, sometimes far too much. Just try it. Dive and feel. Created by Ukrainians SUBSCRIPTION DETAILS Deep In offers an auto-renewable subscription, available monthly, every 6 months, or yearly. New subscribers get a 7-day free trial. Prices are shown in the app before purchase. The free trial converts to a paid subscription unless it is cancelled at least 24 hours before it ends. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use: https://deepin.world/terms Privacy Policy: https://deepin.world/privacy Support: https://deepin.world/support ## Key features - Watch real YouTube videos in original language - Interactive subtitles with word and phrase breakdown - Personalized vocabulary review with flashcards - Practice speaking with AI conversation partner - Vast catalog of diverse video content - Add your own YouTube videos ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Deep | $29.00 | per month | | Deep — 6 Months | $139.99 | per 6 months | | Deep — Yearly | $239.99 | per year | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/deep-in-language-immersion/id6784153530/reviews.md ### 5/5 — Interactive and stylish! *2026-09-10* Interactive learning is always the best! + the app is so stylish! ### 5/5 — Really good *2026-09-10* After first meeting with the app, what can I say… Wow !!! Can’t wait for more languages coming ### 5/5 — The most effective, real language learning *2026-09-09* The most effective way of learning language. Here I can learn a real English, that I hear on streets, and I finally have a chance to understand it here. Because my academic English is far away from real one. And I want to know what different sleng words mean etc etc. Love it! It really works! ## Frequently asked questions about Deep In ### What is the learning methodology of Deep In? Deep In uses an immersion-based approach, similar to how children learn their first language. It focuses on understanding native speakers through real-world content like YouTube videos, rather than traditional grammar lessons or invented dialogues. ### How does Deep In help with vocabulary? You can save words and phrases from videos, along with the sentence they appeared in. Deep In then helps you review these through flashcards or practice conversations with its AI, Solomia, until they are mastered. ### Can I practice speaking with Deep In? Yes, Deep In includes a feature called Solomia, an AI conversation partner. You can talk about videos you've watched or ask how to say specific things, providing a no-pressure environment to practice speaking. ### What kind of content can I watch on Deep In? The app offers a vast catalog of YouTube videos on diverse topics like travel, history, AI, podcasts, interviews, and TV shows. You can also add any YouTube video you find interesting to your personal learning space. ### Does Deep In offer a free trial? Yes, new subscribers receive a 7-day free trial. This trial automatically converts to a paid subscription unless cancelled at least 24 hours before it ends. ### How often is Deep In updated? The app was last updated on September 12, 2026, with version 1.0.3. This indicates a recent update, suggesting ongoing development and support. ### What devices does Deep In support? Deep In is supported on iPhone and iPod devices. The app is rated for ages 17+. ### What are the subscription options for Deep In? Deep In offers auto-renewable subscriptions available on a monthly, 6-month, or yearly basis. Prices are displayed within the app before purchase. ## Version history (last 4 releases) ### 1.0.3 — 2026-09-12 Invite friends and earn — your link and your numbers are now in Profile. Fixes: the sign-up screen stays readable at large text sizes, bottom sheets scroll, and you can share a whole category. ### 1.0.2 — 2026-09-08 Sign in with Apple or Google — one tap, no waiting for a code. One clear plan, and a straight answer about what it includes. Open a screen for the first time and it tells you what it's for. The library moves better: a category shows everything in it, rows keep going instead of stopping short, and they start somewhere new each day. ### 1.0.1 — 2026-09-03 Solomia can hear you now. • Hold the button and speak — she answers out loud. Or open a live call and just talk, and keep going while you move around the app. • Any reply can be played back in her voice. • Practise your saved words as flashcards, and give any word a chat of its own. • Ask her about the video you are watching — in words, or with a picture. • Make the app yours: your own mark and colour, and settings grouped where you would look for them. • Faster throughout, and a long list of small things smoothed out. ### 1.0 — 2026-08-13 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*