Comparison

Echoia vs ShadowFlow

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

Head to head
About

Echoia

Features
Read full description

Can you read English but struggle to speak it with confidence? Want to practice speaking on your own but can't find an effective way? Echoia is an English speaking practice app focused on shadowing and repeating. Listen to native speaker audio, speak along or repeat after, then compare your recording with the original to improve your pronunciation. Key Features: โ€ข Shadowing Mode โ€” Speak along while listening to native audio simultaneously โ€ข Repeating Mode โ€” Listen first, then record and compare โ€ข Waveform Comparison โ€” See the difference between your pronunciation and the native speaker โ€ข AI Pronunciation Assessment โ€” Word-by-word and phoneme-level accuracy scores with improvement tips โ€ข Loop Sections โ€” Select and repeat difficult parts โ€ข Speed Control โ€” Practice at your own pace from 0.5x to 1.25x โ€ข Progress Tracking โ€” Daily and weekly practice stats with score trends When to use Echoia: - 5-minute daily practice during your commute - Before a job interview or presentation - Preparing practical English for travel - Building natural rhythm and intonation Rich Content: - 10 themes: Daily, Travel, Shopping, Phone, Business, Interview, Idioms, Advanced, Movie Quotes, Famous Quotes - 200 practical sentences for fresh daily practice - Translation support in 10 languages Objective, Technology-Based Feedback: - Speech clarity guidance for pronunciation practice - AI pronunciation scoring โ€” accuracy, fluency, completeness, and prosody - Waveform visualization to compare rhythm and pacing One sentence a day. Your pronunciation improves with every practice. Start your confident English speaking journey with Echoia.

About

ShadowFlow

Features
Read full description

ShadowFlow turns YouTube videos into living language lessons. โ–  Watch with karaoke subtitles Subtitles highlight word by word in sync with the video, so you never lose your place. Tap any line to jump to that scene. โ–  Tap any word you don't know The dictionary opens instantly. Save words with one tap โ€” review them as flashcards, hear the pronunciation, and jump back to the exact scene where each word appeared. โ–  Practice speaking with shadowing (MAX) Record your own voice line by line and compare with the original. With headphones, your voice plays in the right ear and the original in the left. Pronunciation scoring shows exactly which words didn't come through, and rhythm bars compare your timing with the original. โ–  A shared pool of subtitles (Pro) Subtitles created by users are shared in a pool โ€” once someone transcribes and fixes a video, everyone can learn from it. New subtitles are created on the desktop web version (kotomori.app/shadowflow). โ–  Plans - Free: watch subtitles you created, word list - Pro: unlimited access to the shared subtitle pool + folders - MAX: everything in Pro + shadowing practice Available in English, Japanese, Spanish, Simplified Chinese, Korean, French, and German. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://kotomori.app/terms Privacy Policy: https://kotomori.app/privacy

Screenshots

Echoia4 screens
ShadowFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: Echoia at none against ShadowFlow's 4. Echoia also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (13.0 vs 17.0). ShadowFlow's advantage is ads (none vs shown). On price and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. ShadowFlow sells 4 in-app purchases, starting at $6.99 per month. Echoia asks for nothing beyond the download.

UpkeepUpdate frequency

Echoia ships an update every 2 days, ShadowFlow every 5 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard4 real differences ยท 2 level
Echoia versus ShadowFlow: the parameters behind the verdict, then further details
ParameterEchoiaShadowFlow
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 5 days
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size43 MB6 MB
Age rating4+17+
DeveloperKeeconDaichi Tanabe

In-app purchases

None

Echoia

No in-app purchases

4 purchases

ShadowFlow

Subscriptions4
  • ShadowFlow Pro (Monthly)7 Days trial$6.991 Month
  • ShadowFlow MAX (Monthly)7 Days trial$14.991 Month
  • ShadowFlow Pro (Yearly)7 Days trial$59.991 Year
Show 1 more
  • ShadowFlow MAX (Yearly)7 Days trial$129.991 Year

Questions

Is Echoia free?
Echoia is free to download, with no in-app purchases.
Is ShadowFlow free?
ShadowFlow is free to download, with in-app purchases available.
Do Echoia or ShadowFlow have ads?
Echoia shows ads; ShadowFlow does not.
Which is updated more often, Echoia or ShadowFlow?
Echoia ships an update every 2 days, and ShadowFlow every 5 days. Most recently, Echoia was updated on October 31, 2026 and ShadowFlow on November 5, 2026.

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