DuoCards vs Предание
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DuoCards
Master a new language with interactive flashcards and video courses. This app helps you build vocabulary, guess words, and track your progress across over 50 languages. Learn effectively through spaced repetition and integrated translation tools.
- Flashcard learning with spaced repetition
- Video language courses with interactive subtitles
- Integrated translator for over 50 languages
- Vocabulary builder and progress tracker
- Guess words and phrases to sharpen skills
- Read foreign language articles
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Build vocabulary from the real content you already enjoy. DuoCards helps you save new words from videos, articles, shared decks, and your own notes, then remember them with smart flashcards and spaced repetition. Why learners choose DuoCards: - Save words and phrases from videos, subtitles, and articles - Practice with an AI tutor for real-life conversations - Improve pronunciation with instant feedback - Review vocabulary with flashcards that adapt to your progress - Learn English, Spanish, French, German, Japanese, Korean, and 50+ languages - Use ready-made courses, public decks, or your own personal word lists Learn in a simple loop: 1. Discover useful words in context 2. Save them to your personal deck 3. Review, speak, listen, and remember Whether you are learning for travel, school, work, or everyday conversations, DuoCards gives you a flexible way to build vocabulary and keep it in memory. Download DuoCards and start building your language habit today. Terms of use: https://www.duocards.com/termsofuse.html Privacy policy: https://www.duocards.com/privacypolicy.html
Предание
Access a vast library of audiobooks, lectures, sermons, and chants from the Predanie.ru website. Download and listen to religious content on the go, all for free. Share your feedback to help improve the app.
- Extensive audio library
- Lectures and sermons
- Audiobooks and chants
- Free downloads
- Offline listening
- Easy navigation
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На портале Предание.ру очень много аудиокниг, лекций, проповедей, песнопений. И что может быть проще, чем закачать их в смартфон или планшет и слушать в дороге? Для вашего удобства мы создали мобильное приложение, с помощью которого можно «в два клика» найти, прослушать и абсолютно бесплатно скачать любое аудиопроизведение из медиатеки сайта Предание.ру. Нам очень нужна ваша обратная связь, пишите все комментарии и замечания по работе приложения на адрес apple@predanie.ru Мы уверены, что наше приложение послужит большему распространению материалов — следовательно, многие и многие новые люди смогут больше узнать о Христе. Храни вас Бог!
Screenshots
Verdict
The clearest difference is in-app purchases: Предание at none against DuoCards's 10. Предание also leads on ads (none vs shown) and rating (5.0 vs 4.7). DuoCards's advantage is ratings volume (1.5K vs 1) and update cadence (monthly vs every 6 months). 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. DuoCards sells 9 in-app purchases, starting at $19.99 per month. Предание asks for nothing beyond the download.
Предание holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: DuoCards has 1.5K ratings behind it against 1, so its average is the more settled of the two.
DuoCards ships an update monthly, Предание every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | DuoCards | Предание |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.5K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 63.1% of reviews | — |
| Number of ratings | 1.5K — better | 1 |
| Update frequency | Monthly — better | Every 6 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 19 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | DuoCards s.r.o | Fond Predanie |
Customer experience
DuoCards
Предание
Bugs and requests
DuoCards
Reported bugs
4 issues- App freezes and crashes
- Issues with logging in and accessing content
- Inconsistent behavior when adding new words
- Problems with video playback and subtitles
Requested features
4 requests- Offline mode
- More customization options
- Improved spaced repetition system
- Better integration with other language learning tools
Предание
Not enough reviews yet to summarise bugs or requests.
In-app purchases
DuoCards
- DuoCards Premium2 variants$19.991 Month
- DuoCards Plus$33.003 Months
- DuoCards Premium$34.993 Months
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- DuoCards Premium7 Days trial$64.901 Year
- DuoCards Premium7 Days trial$67.991 Year
- DuoCards Premium1 Year trial$107.991 Year
- DuoCards Premium7 Days trial$109.001 Year
- DuoCards Premium7 Days trial$113.991 Year
- DuoCards Premium1 Year trial$162.991 Year
Предание
No in-app purchases
