Comparison

Hangul Study vs ShadowFlow

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

Head to head
About

Hangul Study

Master the Korean alphabet by practicing writing consonants and vowels. Explore various pen options and listen to pronunciation with built-in TTS. Supports iPhones and iPads with iOS 16+.

Highlights
  • Practice writing consonants and vowels
  • 19 consonants, 21 vowels, 27 final consonants
  • Multiple pen colors and types
  • TTS pronunciation playback
  • iPhone and iPad support
  • Screen rotation lock (iPhone only)
Features
Read full description

Repeat while writing Korean consonants and vowels. Korean consists of 19 consonants and 21 vowels. Learn the basics of Hangul by writing Korean consonants and vowels. - Consonants: 19 - Vowels: 21 - Final Consonants: 27 - Writing: Learn the basics of Hangul by writing consonants and vowels. - Various pens: Pen colors, types, and thicknesses - Phone and iPad Support: Supports iPhones and iPads with iOS 16 or later. - Screen Rotation Lock: Locking the screen rotation is available only in the iPhone app. - TTS: Listen to pronunciation with the Korean voice installed on your device. - Contains advertisements.

About

ShadowFlow

Features
Read full description

ShadowFlow turns YouTube videos into living language lessons. ■ 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. ■ Tap any word you don't know The dictionary opens instantly. Save words with one tap — review them as flashcards, hear the pronunciation, and jump back to the exact scene where each word appeared. ■ 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. ■ A shared pool of subtitles (Pro) Subtitles created by users are shared in a pool — once someone transcribes and fixes a video, everyone can learn from it. New subtitles are created on the desktop web version (kotomori.app/shadowflow). ■ 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

Hangul Study3 screens
ShadowFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: Hangul Study at none against ShadowFlow's 4. ShadowFlow's advantage is ads (none vs shown) and update cadence (every 5 days vs every 7 months). On price, device support and iOS requirement 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. ShadowFlow sells 4 in-app purchases, starting at $6.99 per month. Hangul Study asks for nothing beyond the download.

UpkeepUpdate frequency

Hangul Study ships an update every 7 months, ShadowFlow every 5 days. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 6 level
Hangul Study versus ShadowFlow: the parameters behind the verdict, then further details
ParameterHangul StudyShadowFlow
PriceFreeFree
Rating3.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size20 MB6 MB
Age rating4+17+
Developerkim juyoungDaichi Tanabe

In-app purchases

None

Hangul Study

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 Hangul Study free?
Hangul Study is free to download, with no in-app purchases.
Is ShadowFlow free?
ShadowFlow is free to download, with in-app purchases available.
Do Hangul Study or ShadowFlow have ads?
Hangul Study shows ads; ShadowFlow does not.
Which is updated more often, Hangul Study or ShadowFlow?
Hangul Study ships an update every 7 months, and ShadowFlow every 5 days. Most recently, Hangul Study was updated on September 29, 2026 and ShadowFlow on September 28, 2026.

Other comparisons