メトロノーム Poly vs ShamiScore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
メトロノーム Poly
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【2つのリズムを同時演奏】ポリリズムに対応したメトロノーム 上下2分割画面の「ツインメトロノーム」。 2つのメトロノームが完全に独立して動くので、複雑なポリリズムや変拍子の練習がこれ1台で完結します。 リズムの異なるピアノの右手と左手の練習にも使えます。 タップテンポに対応しました。 利用規約： https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ShamiScore
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ShamiScore lets you create and edit music for shamisen using fret-based notation. Enter notes in the piano roll, view them as TAB or bunka-fu, and play the score back at your chosen tempo. Features • Edit note position, duration, and fret • Set the tuning, including honchoshi, niagari, and sansagari • Set tempo and time signatures, then listen to playback • Export PDF, MIDI, and m4a audio • Save .shami documents and sync them with iCloud Drive The free version supports scores up to 64 measures. ShamiScore Pro is available as a monthly subscription or a one-time purchase. Both plans unlock multiple tracks, time signature changes, custom tuning, MIDI import, PDF export without the logo, and more. A canceled subscription remains active until the end of its paid period. Existing scores can still be viewed and played afterward. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: メトロノーム Poly at none against ShamiScore's 1. メトロノーム Poly also leads on iOS requirement (15.6 vs 18.0). ShamiScore's advantage is ads (none vs shown). On price, update cadence 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
Both are free to download. ShamiScore sells 1 one-off in-app purchase. メトロノーム Poly asks for nothing beyond the download.
メトロノーム Poly ships an update every 6 days, ShamiScore every 3 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.
| Parameter | メトロノーム Poly | ShamiScore |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Nito Kiyoshi | Shu Kawakami |
In-app purchases
メトロノーム Poly
No in-app purchases
ShamiScore
- ShamiScore Pro$99.99
