Comparison

DecoEcho vs Flashcards & Shadowing

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DecoEcho

This app uses a smart spaced-repetition engine to optimize your study sessions. It adapts to your learning pace, showing you cards you struggle with more often and those you know well less frequently. Focus on learning with its intuitive design and privacy-focused approach.

Highlights
  • Spaced-repetition study engine
  • Dating-app style swipe grading
  • Type-the-answer study mode
  • Two-sided cards with text and images
  • Daily and lifetime study statistics
  • iCloud sync
  • Deck sharing with classmates
Features
Read full description

Study smarter without subscriptions, ads, accounts, or tracking. DecoEcho is a private flashcard app that combines adaptive spaced repetition, practice tests, and fast, flexible card creation. Build your own study library for languages, science, medicine, law, history, exams, or anything else you want to remember. FREE STUDY TOOLS • Create unlimited subjects, decks, and flashcards • Add text and images to both sides of a card • Review with adaptive spaced repetition • Choose swipe-to-grade or type-the-answer study • Take practice tests with true/false, multiple choice, matching, and written questions • Race the clock in Match • Star tricky cards and study just those • Study cards in either direction • Track your streak, daily progress, test scores, and cards learned • Get an optional daily study reminder • Import sets exported from other flashcard apps • Sync across iPhone and iPad with your private iCloud account • Share complete decks with classmates and friends • Study in light or dark mode DECOECHO PRO — ONE-TIME PURCHASE • Turn pasted notes or scanned pages into cards using on-device Apple Intelligence on supported devices • Autofill clear card answers from Wikipedia • Translate cards across Spanish, French, German, Italian, Mandarin Chinese, Japanese, Korean, and Portuguese • Hear cards spoken aloud with language-appropriate voices YOUR STUDY DATA STAYS YOURS DecoEcho has no accounts, advertising, analytics, or tracking. Your flashcards stay on your device and in your own private iCloud account. Wikipedia autofill is the only study feature that makes an anonymous web request. Study with a focused flashcard system that respects both your time and your privacy.

About

Flashcards & Shadowing

Read full description

Shadowing practice app with flashcards. Practice pronunciation, turn the videos you already watch into speaking practice! Paste a link to a clip you like from social media, and Moki turns it into a pronunciation lesson. A native speaker says a line, you repeat it, and you keep going until it sounds right. Interpreters and language teachers have used shadowing for decades, usually with textbook audio. Here you do it with a creator you already listen to. WHY SHADOWING WORKS Reading a word tells you what it means. Repeating it out loud after a native speaker tells you how it actually sounds: the rhythm, the way words run into each other, the sounds your own language never asks you to make. Plenty of learners understand far more than they can say. Shadowing works on the second half. Ten minutes a day is enough to hear the difference in your own recordings. LEARN THE WORDS, NOT JUST THE SOUNDS Any word from a clip becomes a flashcard in one tap. Moki schedules the reviews with spaced repetition, so a card comes back right before you'd forget it and drops out of rotation once you know it. Your vocabulary comes from videos you picked yourself, so you end up learning the words people actually use. DEFINITION AND Q&A CARDS A definition card has the term on one side and what it means on the other. Question and answer cards take anything you'd be asked out loud: an exam question, a formula you have to reproduce. Write them yourself, or give Moki a topic and get a deck back. WHAT YOU GET: • Import any clip you like and practice with it • Line-by-line playback with slowdown and instant replay • Record yourself and compare against the original • One-tap flashcards from any word you meet • Definition cards and Q&A cards, made by hand or by AI • Spaced repetition that adapts to what you remember • Build your own decks for anything you're studying PREMIUM FEATURES: • AI Translate: tap a word and get the meaning it has in that line, not the first one in the dictionary. • AI examples: ask for example sentences on any card and see the word working in a real sentence. • AI decks: describe what you want to learn and get a deck built for it, definition and Q&A cards included. • iCloud backup: your decks, cards and review history follow you to your next device. SHADOWING LANGUAGES English, Spanish, French, German, Italian, Portuguese, Russian, and Turkish. Full pronunciation practice in all eight. WHO IT'S FOR If you can read a language but freeze when it's time to speak, this is for you. Same if you want to soften an accent, you're preparing for a speaking exam, or you finished a streak-based course and still can't hold a conversation. Start with one clip. You'll know within a week whether it's working. Privacy policy: https://lunarly.org/policy Terms of use: https://lunarly.org/terms

Screenshots

DecoEcho4 screens
Flashcards & Shadowing4 screens

Verdict

The call

The clearest difference is in-app purchases: Flashcards & Shadowing at none against DecoEcho's 1. Flashcards & Shadowing also leads on update cadence (weekly vs monthly). DecoEcho's advantage is iOS requirement (18.0 vs 26.5). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DecoEcho sells 1 one-off in-app purchase. Flashcards & Shadowing asks for nothing beyond the download.

UpkeepUpdate frequency

DecoEcho ships an update monthly, Flashcards & Shadowing weekly. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
DecoEcho versus Flashcards & Shadowing: the parameters behind the verdict, then further details
ParameterDecoEchoFlashcards & Shadowing
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better26.5
Further details — not scored
Size5 MB160 MB
Age rating4+4+
DeveloperLincoln Road Ventures, LLCLunarly Limited

In-app purchases

1 purchases

DecoEcho

One-time1
  • DecoEcho Pro$4.99
None

Flashcards & Shadowing

No in-app purchases

Questions

Is DecoEcho free?
DecoEcho is free to download, with in-app purchases available.
Is Flashcards & Shadowing free?
Flashcards & Shadowing is free to download, with no in-app purchases.
Do DecoEcho or Flashcards & Shadowing have ads?
Neither DecoEcho nor Flashcards & Shadowing shows ads.
Which is updated more often, DecoEcho or Flashcards & Shadowing?
DecoEcho ships an update monthly, and Flashcards & Shadowing weekly. Most recently, DecoEcho was updated on October 9, 2026 and Flashcards & Shadowing on October 12, 2026.

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