Flashy Study Cards vs Deep In
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flashy Study Cards
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Flashy is the simplest way to learn anything by heart. Words, formulas, dates, definitions, or your own notes, all powered by spaced repetition. Create a deck, add your cards, and let Flashy do the rest. Each card comes back at exactly the right moment, so you spend less time studying and remember more. WHY FLASHY • Spaced repetition that works. Rate each card Hard, Good, Easy, or Mastered. Flashy schedules the next review automatically: short intervals for the tricky ones, long intervals for what you already know. • Built for focus. A clean, distraction-free study session. Tap to flip, rate, next card. That is it. • Your own intervals. Tighter reviews for an upcoming exam? Longer ones for casual learning? Customise every interval to match how you study. • Browse by interval. See exactly which cards are scheduled where, from "due in 3 hours" to "mastered for 10 days." • Decks for everything. Languages, medical terms, history, code, vocabulary, capitals. Organise with names and emoji. • Synced across your devices. Sign in once and your decks travel with you. Add a card on your phone, study it on your iPad, everything stays up to date. • Gentle daily reminders. Optional notifications keep your streak going without nagging. • Works offline. Study on the train, on a flight, anywhere. Your data syncs when you are back online. • Your data is yours. Export every deck and card to a plain file whenever you want. No ads, no tracking, no subscriptions. PERFECT FOR • Language learners building vocabulary • Students preparing for exams • Medical, law, and finance professionals • Anyone with something worth remembering No subscriptions. No ads. No clutter. Just a great place to keep what you are learning. Download Flashy and start remembering.
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
Screenshots
Verdict
The clearest difference is in-app purchases: Flashy Study Cards at none against Deep In's 3. On price, update cadence, ads 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. Deep In sells 3 in-app purchases, starting at $29.00 per month. Flashy Study Cards asks for nothing beyond the download.
Flashy Study Cards ships an update every 11 days, Deep In every 6 days. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.
| Parameter | Flashy Study Cards | Deep In |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 11 days | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 20 MB | 72 MB |
| Age rating | 4+ | 17+ |
| Developer | DILAY YIGIT | DEEP IN |
In-app purchases
Flashy Study Cards
No in-app purchases
Deep In
- Deep7 Days trial$29.001 Month
- Deep — 6 Months7 Days trial$139.996 Months
- Deep — Yearly7 Days trial$239.991 Year
Questions
Is Flashy Study Cards free?
Is Deep In free?
Do Flashy Study Cards or Deep In have ads?
Which is updated more often, Flashy Study Cards or Deep In?
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