JangdanMetronome vs OpenScore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JangdanMetronome
This app provides a metronome specifically designed for Korean traditional music, featuring a wide array of rhythmic structures (Jangdan) from various genres. It aids musicians in accurately practicing and performing complex traditional rhythms.
- Korean traditional rhythm (Jangdan) metronome
- Extensive library of Jangdan patterns
- Support for Sanjo, Pansori, Minyo, Daepungnyu, Yeongsanhoesang, and more
- Detailed rhythmic structure breakdowns
- Recording and data input capabilities
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Korean Traditional Rhythm, Jangdan Metronome App. *** Discount For New Semester *** Jangdan (literally, long-short) are the unique rhythmic structures used in Korean traditional music. If the jangdan is not played well, Korean music will be unable to be fully expressed or reach its full potential. Includes *** Sanjo,Pansori 산조,판소리 *** "Jinyang 진양", "Jungmori 중모리", "Jungjungmori 중중모리", "Gutgeori 굿거리", "Jajinmori 자진모리", "Hwimori(Danmori,Sesanjosi) 휘모리(단모리,세산조시)", "Dongsalpuri 동살풀이", "Eonmori 엇모리", "EotJungmori 엇중모리" *** Minyo(Folk song) 민요 *** "Semachi 세마치", "Gutgeori 굿거리", "JajinYukjabaegi(Samjanggaebi) 자진육자배기(삼장개비)", "Eorangtaryeong 어랑타령", "Noraetgarak 5.8.8.5.5 노랫가락 5.8.8.5.5", "Noraetgarak 3.8.8.5.5 노랫가락 3.8.8.5.5", "Noraetgarak 5.8.5.5 노랫가락 5.8.5.5", "Noraetgarak 5.5.8.5.5 노랫가락 5.5.8.5.5" *** Daepungnyu 대풍류 *** "GinYeombul(Yeombultaryeong) 긴염불(염불타령)", "BanYeombul(Dodeuri) 반염불(도드리)", "Samhyeontaryeong 삼현타령", "NeurinHeoteuntaryeong 느린허튼타령", "JungHeoteuntaryeong 중허튼타령", "JajinHeoteuntaryeong 자진허튼타령", "Gutgeori 굿거리", "JajinGutgeori 자진굿거리", "Dangak 당악" *** Yeongsanhoesang 영산회상 *** "20Beats: Sangnyeongsan,Jungnyeongsan 20박: 상령산,중령산", "20Beats: SangnyeongsanGallachigi 20박: 상령산 갈라치기", "10Beats: SeryeongsanNaeneungarak 10박: 세령산 내는가락", "10Beats: Seryeongsan,Garakdeori,SanghyeondodeuriDoljang 10박: 세령산,가락덜이,상현도드리돌장", "6Beats: Dodeuri 6박: 도드리", "4Beats: Taryeong,Gunak 4박: 타령,군악" *** Yangcheongdodeuri 양청도드리 *** "4Beats: 1-6 movements 4박: 1-6장" *** Chwita 취타 *** "12Beats 12박" *** Jeolhwa(Gilgunak) 절화(길군악) *** "8Beats 8박", "4Beats 4박" *** Dongdong,Sujecheon 동동,수제천 *** "18Beats 18박" *** Hyangdanggyoju 향당교주 *** "10Beats 10박" *** Gagok 가곡 *** "16Beats 16박", "10Beats(Pyeonjangdan) 10박(편장단)" *** Gasa 가사 *** "6Beats 6박" *** Gyeonggi Dodanggut 경기 도당굿 *** "Gilgunak(Nakgung) 길군악(낙궁)", "Jinsoe 진쇠", "Teobeollim(Banseoreum) 터벌림(반서름)", "Gyeommachigi 겹마치기", "Bujeongnori 부정놀이", "Dosalpuri 도살풀이", "Balppeodeure 발뻐드레", "Ollimchae 올림채", "Pusal 푸살", "Bongdeungchae 봉등채" *** Jindo Ssitgimgut 진도 씻김굿 *** "Heullim 흘림" *** Donghaean Byeolsingut 동해안 별신굿 *** "Puneori 1st movement 푸너리 1장", "Deureonggaengi 1st movement 드렁갱이 1장", "Cheongbo 1st movement 청보 1장", "Geomu 1st movement 거무 1장", "Dongsalpuri 동살풀이" *** Pungmulnori 풍물놀이 *** "Chilchae 칠채", "Yukche 육채", "Gilgunak 길군악", "BanGilgunak 반길군악", "Byeoldalgeori 별달거리", "Daseureum 다스름" Janggu recordaing and jangdan data input: Hyeonhee Park
OpenScore
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Open your sheet music and focus on playing. OpenScore brings score management, annotation, page turning, and practice tracking together in one app. From daily practice to stage preparation, open the music you need on iPhone and iPad. • Import PDFs and photos of your scores, or capture paper sheet music with the camera. Arrange your pieces into setlists so the music you need for practice and performance comes up in order. • Mark fingerings, expression, and tricky spots with freehand notes and the highlighter. Keep what you learned in your lesson and noticed while practicing right on the page. • Turn to the next page with a wink or a nod. Keep reading even while both hands are on the instrument. • Set your tempo with the metronome and record your playing. Listen back to find what to polish in your next session. • Check your practice time by piece and your daily history. Look back on the practice you've built up and shape a routine of your own. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: OpenScore at Free against JangdanMetronome's $2.99. OpenScore also leads on update cadence (every 5 days vs every 7 months). JangdanMetronome's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 16.4). On 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
OpenScore is free to download; JangdanMetronome costs $2.99 up front. OpenScore sells 2 in-app purchases, starting at $12.99 per year. JangdanMetronome asks for nothing beyond the download.
JangdanMetronome ships an update every 7 months, OpenScore every 5 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.
| Parameter | JangdanMetronome | OpenScore |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 78.6% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 8 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Acoustic World | Nemo Studio (KR) |
In-app purchases
JangdanMetronome
No in-app purchases
OpenScore
- Pro3 Days trial$12.991 Year
- Plus$19.99








