bgm vs コード練習メトロノーム
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
bgm
This app generates unique, endlessly repeating background music by automatically mixing 25 sound elements. It creates a "serendipitous and eternally repeating, yet never the same phrase" listening experience.
- Automatic sound mixing
- Generates unique music
- Endlessly repeating loops
- 25 sound elements
- Improvisational composition
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25個の音のパーツを自動かつ即興でミックスすることで、“偶然につくられ、永遠に繰り返す。でも、おなじフレーズは繰り返さない”という、不思議なバックグランド・ミュージックを演奏します。
コード練習メトロノーム
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メトローム機能とダイアトニックコード進行の機械的な練習ができます。
Screenshots
Verdict
The clearest difference is update cadence: bgm at every 4 days against コード練習メトロノーム's every 18 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
bgm ships an update every 4 days, コード練習メトロノーム every 18 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | bgm | コード練習メトロノーム |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days — better | Every 18 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 153 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | 株式会社ZIZO | Dream Jack Inc. |
In-app purchases
bgm
No in-app purchases
コード練習メトロノーム
No in-app purchases
