Stacks vs TurnCards
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/
TurnCards
This app uses voice recognition to help you learn languages by speaking answers aloud. It offers various study modes, tracks your progress, and supports custom deck imports. Focuses on building speaking confidence through interactive review.
- Voice-first flashcards
- On-device speech recognition
- Native pronunciation audio
- CEFR level filtering
- Smart bookmarks
- AI-enhanced decks
- Import custom decks
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Flashcards that listen back. Say your answer out loud and TurnCards grades it instantly. Hear every word in a native accent, then say it back, the way you'll use the language for real. SPEAK, DON'T TYPE - Speak: hear the word, say the translation. Lenient grading accepts synonyms and small slips. - Pronounce: repeat after the native voice and get a score, with a syllable-stress check. - Fill in: complete real sentences from your deck, out loud. - Shadow: hear a whole example sentence and say it back at the same pace. - Listen: hands-free. The word, its meaning and an example sentence, on a loop. Made for walks and commutes. - Match: match your target language and native language words. - Mixed: For when you want a real variety to stretch your skills. A PLAN FOR EVERY DAY - Today shows your daily goal, your streak and the best session to do next. - Spaced repetition brings back the cards you miss and spaces out the ones you know. - Streaks right on your dashboard with a streak shield for those time you just can't study today. - Follow a session on the Lock Screen with a Live Activity, and keep your streak and goal on your Home Screen with widgets. FREE DECKS, OR YOUR OWN - TurnCards has a robust library of A1 - C1 decks for Italian, Spanish, French, German, and Japanese. And you can create your own by importing a file, an article/book, or other sources; have Apple's on-device AI build a deck with your guidance; or import from your other flashcard programs (.APKG for example). PRIVATE BY DESIGN No account. No TurnCards servers. Your decks and progress stay on your iPhone and in your own iCloud. FREE, WITH AN AD-FREE OPTION TurnCards is free with ads, or you can go ad-free with a one-time or lifetime plan. Tips are also appreciated to support development. Ads are a small, non-intrusive, banner, and a full screen ad at the end of every 2 study sessions (never mid-session). Speak. Listen. Learn. Terms of Use: https://turncards.app/terms Privacy Policy: https://turncards.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: TurnCards at none against Stacks's 2. TurnCards also leads on update cadence (every 5 days vs every 3 months). Stacks's advantage is ads (none vs shown) and iOS requirement (16.4 vs 18.0). On price 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. Stacks sells 2 in-app purchases, starting at $9.99 per 3 months. TurnCards asks for nothing beyond the download.
Stacks ships an update every 3 months, TurnCards every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Stacks | TurnCards |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 77 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Lewis Hoy | TurnCards LLC |
Customer experience
Stacks
TurnCards
In-app purchases
Stacks
- Stacks+ Quarterly$9.993 Months
- Stacks+ Yearly$27.991 Year
TurnCards
No in-app purchases









