Echo Loop vs PTE WFD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Echo Loop
This app uses a science-based, eight-stage spaced repetition system to improve English listening and speaking skills. It guides users through blind listening, intensive listening, sentence repetition, and paragraph retelling, with AI feedback and vocabulary tools.
- Eight-stage spaced repetition learning
- Blind and intensive listening modes
- AI-assisted sentence repetition with feedback
- Paragraph retelling with keyword generation
- Bookmarking for sentences and vocabulary
- Vocabulary flashcard review
- Learning progress tracking
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Echo Loop is a science-based English listening and speaking training app. It helps you turn unfamiliar audio into real understanding and build fluency through repetition and retelling. The app combines a complete listening and speaking training loop with spaced repetition. It automatically schedules review tasks, reminds you to practice, and guides you step by step, so you can focus on listening and speaking instead of managing the process yourself. 【Eight-stage spaced repetition】 Each audio item follows an eight-stage learning cycle: initial learning, same-day review, reviews on Days 1, 2, 4, 7, and 14, and completion on Day 28. The app automatically schedules each review to help turn short-term memory into long-term memory. 【Complete initial learning flow】 The initial learning stage includes four steps: • Blind Listening: Listen to the full audio without the transcript, get the general meaning, and rate the difficulty. • Intensive Listening: Listen sentence by sentence. For difficult sentences, view the transcript and save unfamiliar sentences and words. • Sentence Repetition: Repeat saved sentences with transcript support. The number of repetitions is adjusted based on difficulty, and each recording receives instant AI feedback. • Paragraph Retelling: Listen paragraph by paragraph and retell what you hear in your own words with keywords generated by the app. 【Review stages】 From Day 1 to Day 28, review focuses on blind listening, sentence repetition, and paragraph retelling. Retelling segments gradually become longer, helping you build a stronger link between listening input and speaking output. 【Multiple playback options】 Choose from full audio playback, sentence-by-sentence playback, and saved sentences only. You can also adjust repeat count, pauses between sentences, and retelling length. 【Bookmarked sentences and vocabulary】 • Save difficult sentences with one tap and review them across all your audio materials. • Use a built-in local dictionary with phonetic transcriptions, definitions, pronunciations, Collins star ratings, and exam tags for bookmarked words. • Saved words are linked to their source audio and original sentences, so you can learn vocabulary in context. 【Vocabulary flashcard review】 Review words with flashcards showing the word and pronunciation on the front, and definitions plus the original example sentence on the back. It also supports auto flip, smart sorting, and progress tracking. 【AI-assisted learning】 AI can automatically generate English subtitles. During intensive listening, you can view subtitles, AI translations, and grammar explanations. Subtitles can be shown as full sentences or thought groups, helping you recognize collocations in context instead of memorizing isolated words. 【Learning progress tracking】 Track your study streak, listening input, speaking output, and vocabulary growth. You can also resume anytime from where you left off. 【Free Practice Mode】 Besides the guided learning flow, you can also use Free Practice Mode. You can adjust playback speed, choose whether to show subtitles, and save difficult sentences and words. Import the English audio you want to understand quickly, and start practicing listening and speaking in a more effective way. Subscription Information Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your Apple ID account settings. Payment will be charged to your Apple ID account upon confirmation of purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.echo-loop.top/privacy
PTE WFD
Practice writing from dictation for standardized English tests. This app offers offline listening exercises with word-by-word scoring to identify errors. It includes spaced review, an offline dictionary, and focused listening modes.
- 283 deduplicated WFD sentences
- Word-by-word scoring
- Spaced review system
- Offline dictionary with phonetics
- Focused listening mode
- No account or ads required
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Every PTE Academic and PTE Core test has 3-4 Write From Dictation items, and each one scores toward your Listening AND your Writing band. It is scored word by word. This app drills 283 deduplicated WFD sentences one at a time and marks you word by word, in order, so you can see exactly which words you dropped. Learning content works fully offline — questions and audio ship inside the app. No account or ads. Optional anonymous product-interaction analytics use Apple CloudKit only after your consent. First 30 sentences free. SENTENCE-BY-SENTENCE DICTATION • 283 deduplicated WFD sentences built in • English and Chinese audio ship with the app — nothing to download • Scored word by word, in order, with every dropped word marked in place • Progress saves automatically; star the sentences you keep missing • Hide the English and the translation together for true blind dictation SPACED REVIEW • Learned sentences return after 1, 2, 4, 7, 15, 30 and 60 days • A badge on the Review tab shows today's remaining count, with days changing at 4:00 am Beijing time • Missing words, low scores and revealed prompts stay in today's queue until written correctly OFFLINE DICTIONARY AND WORD LIST • Tap any English word in a sentence for phonetics, meanings, phrases, derivatives, word roots, synonyms and antonyms • Unlimited lookups; free users can save up to 30 words • Review saved words one by one and retire them once learned — your history is always kept WFD FM • A focused listening mode built around the English sentence and its translation • Play across all sentences, only the ones you have studied, or only your starred ones • Sequential, shuffle and single-sentence repeat • Turn on Chinese playback to hear each sentence in English then Chinese • Speed control, background playback and lock-screen controls QUIET, FOCUSED, OFFLINE LEARNING • No account required • No personally identifiable data collected, no third-party analytics SDK, and no cross-app tracking • Optional anonymous product analytics can be declined or turned off at any time without affecting learning • No ads • Unlock the full question bank, WFD FM and unlimited saved words with a monthly or yearly subscription, or a one-time purchase • All questions and audio stay on your device This is an independent study tool. It is not affiliated with, authorised by, or endorsed by Pearson or PTE. Terms of Use (standard Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: PTE WFD at 5.0 against Echo Loop's 3.8. PTE WFD also leads on update cadence (daily vs every 5 days). Echo Loop's advantage is in-app purchases (none vs 3) and ratings volume (6 vs 1). On price and ads 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. PTE WFD sells 3 in-app purchases, starting at $0.99 per month. Echo Loop asks for nothing beyond the download.
PTE WFD holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Echo Loop has 6 ratings behind it against 1, so its average is the more settled of the two.
Echo Loop ships an update every 5 days, PTE WFD daily. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.
| Parameter | Echo Loop | PTE WFD |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 5 days | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 164 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Hangzhou Fengchen Hangqi Management Consulting Co., Ltd | 久旸 李 |
Customer experience
Echo Loop
PTE WFD
In-app purchases
Echo Loop
No in-app purchases
PTE WFD
- WFD FM 月度会员$0.991 Month
- WFD FM 年度会员$7.991 Year
- WFD FM 永久会员$14.99









