Stacks vs Flash Cards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stacks
Create flashcards from your own experiences and conversations. This app uses spaced repetition to help you remember vocabulary longer with less study. It supports over 100 languages and offers offline study capabilities.
- Create cards from stories and conversations
- Spaced repetition system (FSRS)
- Offline study mode
- Automatic translations
- Supports over 100 languages
- Romanization for select scripts
- Clean, minimal interface
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Your stories are better. Life's too short to cram from borrowed lists. Stacks turns trips and conversations into cards, then spaced-repetition (FSRS) handles the science. Episodic memory meets spaced repetition. Dream team. Benefits: • Keep momentum anywhere – Study offline on flights, trains, or dead zones. • Stay in sync across devices – Your progress follows you automatically. • Focus without distractions – No ads, just learning. • Create cards in seconds – Automatic translations speed up card creation. • Learn with clearer meanings – Premium DeepL translations offer high accuracy and context. • Remember longer with less study – FSRS schedules reviews at the right time. • Learn the language you care about – Supports over 100 languages. • Crack non-Latin scripts faster – Romanization for select languages like Japanese, Arabic, Russian, and Hindi. • Feel calm while you study – A clean, minimal interface that gets out of the way. Free and Plus Create up to 40 cards for free. Upgrade to Stacks Plus for unlimited cards, DeepL translations, spaced repetition customisation, and more. Perfect for language learners, students, and polyglots who want to study offline, master vocabulary, and remember more with flashcards. Privacy Policy: https://www.thestacksapp.com/privacy Terms of Service: https://www.thestacksapp.com/terms-of-service EUSA: https://www.apple.com/legal/internet-services/itunes/dev/minterms/
Flash Cards
Master any subject with science-based flashcards that adapt to your learning style. Utilize spaced repetition, the Leitner system, and confidence-based ratings to accelerate memorization and track your progress with detailed statistics. Create rich cards with text and images, and share decks with friends.
- Spaced Repetition
- Leitner System
- Confidence-Based Learning
- Progress Tracking
- Rich Card Creation
- Deck Sharing
- Offline Study
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Master Any Subject with Science-Based Flashcards Flashcards Master transforms your study sessions with intelligent, research-proven methods designed to maximize retention and accelerate learning. Whether you're preparing for exams, learning a new language, or mastering professional skills, our app adapts to your learning style for optimal results. SMART STUDY METHODS • Spaced Repetition - The gold standard of memorization with optimal interval timing • Leitner System - Organizes cards by difficulty for focused practice • Confidence-Based - Rate your knowledge to focus on weaker areas • Active 2-3-5-7 - Fixed intervals proven for rapid memorization • Interleaved Practice - Enhances problem-solving and flexible thinking • Simple Review - Perfect for quick reviews and last-minute prep TRACK YOUR PROGRESS Monitor your learning journey with detailed statistics and insights. See your accuracy rates, study streaks, and mastery levels across all your decks. RICH CARD CREATION Create engaging flashcards with: • Text and images • Multiple card types • Custom study methods per deck • Import/export capabilities • Deck sharing with friends SEAMLESS EXPERIENCE • Beautiful, intuitive interface • Unlimited decks and cards (Premium) • Multi-language support • iCloud sync across devices • Offline study capability PREMIUM FEATURES • Unlimited cards per deck • Advanced statistics • Custom study scheduling • Priority support Built by educators and backed by research, Flashcards Master makes learning more effective, efficient, and enjoyable. Download now and discover the power of science-based learning! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Stacks at 100% against Flash Cards's 0%. Stacks also leads on iOS requirement (16.4 vs 18.0). 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. Stacks sells 2 in-app purchases, starting at $9.99 per 3 months and Flash Cards sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Stacks ships an update every 3 months, Flash Cards every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Stacks | Flash Cards |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 77 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Lewis Hoy | Jeff Cedilla |
Customer experience
Stacks
Flash Cards
In-app purchases
Stacks
- Stacks+ Quarterly$9.993 Months
- Stacks+ Yearly$27.991 Year
Flash Cards
- Monthly$0.991 Month
- Yearly$6.991 Year
- Lifetime$9.99
- Lifetime Discount$9.99









