Deep In vs Spelloom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deep In
Learn languages by immersing yourself in real-world content like YouTube videos. This app focuses on understanding native speakers and building practical vocabulary through interactive subtitles and personalized review tools.
- 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
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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
Spelloom
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Build your vocabulary with flashcards and spaced repetition. Learn words in context, practice listening and pronunciation, and save words from other apps to create your own cards. Words in context Learn new words with translations and examples that show their meaning and how they’re used in context. Listen to pronunciations, explore images that help you remember, and watch short videos featuring native speakers to discover words in real speech as well as on flashcards. A variety of exercises Choose the correct translation, recognize words by ear, build them from letters, and type your answers. Practice saying words aloud with speech recognition. Different exercise formats help reinforce meaning, spelling, and pronunciation. Spaced repetition Spelloom schedules each word’s next review based on your answers. Words you find harder come back more often, while words you know well return after longer intervals. Your daily learning plan See which words are due for review and how many new words you can learn today. Set your daily goal and exercise difficulty, choose vocabulary levels, and learn at your own pace. Ready-made vocabulary and Word Bank Learn German, Spanish, French, Dutch, Italian, and Polish. Choose vocabulary by topic and level, from A1 to C1. Add your own words to your Word Bank, along with translations, examples, images, and your own audio recordings. Progress and motivation Track the words you’ve learned, your study time, and your progress by level and topic. View your activity calendar, keep your learning streak going, and unlock achievements. Set reminders to make learning a regular habit. Add word and streak widgets to your Home Screen and Lock Screen. Study rooms and exams Learn with a teacher, friends, or colleagues. Create themed study rooms with shared word collections, invite others with a link, compare progress, and test your knowledge with exams. Teachers can choose vocabulary for their students, track their progress, and review exam results and mistakes. Free version and Premium Start for free: learn up to 5 new words a day, review vocabulary, add your own words, and join study rooms. Premium removes the daily limit on new words and unlocks word list imports from files, dedicated practice for difficult words, and detailed statistics. Create unlimited study rooms and invite more participants. Audio generation for custom words is available with Premium. Premium is available as a monthly or annual subscription that renews automatically. Pricing and terms are shown before purchase. You can manage your subscription and cancel automatic renewal in your App Store account settings. Learn new words and make them stick with Spelloom. Privacy Policy: https://spelloom.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: Deep In at 15.1 against Spelloom's 17.0. On price, update cadence, ads and in-app purchases 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. Deep In sells 7 in-app purchases, starting at $7.00 per month and Spelloom sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Deep In ships an update weekly, Spelloom every 8 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Deep In | Spelloom |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Weekly — better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 79 MB | 30 MB |
| Age rating | 17+ | 12+ |
| Developer | DEEP IN | Viktor Osipchuk |
In-app purchases
Deep In
- Deep In · Lite7 Days trial$7.001 Month
- Basic7 Days trial$14.001 Month
- Deep7 Days trial$21.001 Month
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- Deep In · Lite7 Days trial$35.006 Months
- Deep In · Lite7 Days trial$60.001 Year
- Deep — 6 Months7 Days trial$95.006 Months
- Deep — Yearly7 Days trial$134.991 Year
Spelloom
- Premium Monthly$9.991 Month
- Premium Annual7 Days trial$79.991 Year









