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App Store Apps > Utilities > RPM Memory
RPM Memory icon

RPM Memory

1.44
NAOFUMI NOMOTO
0.00
0 reviews
$1.99

RPM Memory Screenshot 1 of 5
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Screenshots by NAOFUMI NOMOTO, from the the App Store listing
View on the App Store

AppBrain's verdict

Last updated
November 12, 2026
Size
5.25 MB
Official page on the App Store

User feedback

Ratings and reviews on the App Store

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Store listing

By NAOFUMI NOMOTO, from the App Store
Description by NAOFUMI NOMOTO Written by the developer, not by AppBrain. Click to read.
RPM Memoryは、ミニ四駆モーターの音から回転数を計測し、記録・比較するためのアプリです。

モーターを回してマイクに音を聞かせるだけで、回転数(RPM)と、ギヤ比・タイヤ径から換算した速度を表示します。計測結果はその場で保存でき、あとから履歴で見返したり、並べて比べたりできます。

■ できること
・音からの回転数計測(MAX / MIN / AVG、目標回転数の設定)
・計測の保存と履歴(モーター、個体、マシン設定ごとの記録)
・慣らしの前後など、2つの状態を比べる A/B 比較
・タイヤを付けた状態との差から見る駆動ロス(タイヤ付)
・モーター別のグラフ、2件の並列比較
・逆算(必要トルク、ジャンプ飛距離の目安計算など)
・外観テーマの切り替え、ダークモード、英語表示

■ 使い方
1.「計測開始」を押して、マイクの使用を許可します
2. モーターを回し、音をスマートフォンのマイクに近づけます
3. 回転数が表示されたら「ロック」で固定し、「保存」で記録します

■ 音声とプライバシーについて
マイクの音声は、回転数を算出するために端末の中だけで解析します。録音・保存・外部への送信はしません。計測履歴などのデータも端末の中にだけ保存されます。

■ ご注意
・計測値は、部屋の騒音やマイクとの距離など、計測環境によって変動します。目安としてご利用ください
・本アプリは個人が開発した非公式ツールです。ミニ四駆は株式会社タミヤの登録商標であり、本アプリは株式会社タミヤとは関係ありません

Safety and technology

Found in the app by AppBrain
Price
$1.99
App size
5.25 MB
Content rating
Everyone

Technologies used by RPM Memory

Releases

Updates seen on the App Store
Version
1.44
Launched
November 2026

No changelog data

Rankings

App Store top charts

App Store Rankings for RPM Memory

This app is not ranked

About the app and developer

About RPM Memory

RPM Memory is an utilities app developed by NAOFUMI NOMOTO.

User Ratings

The app has no ratings yet.

App Information

RPM Memory costs $1.99. The app size is 5.25 MB. The latest version available is 1.44. The last update was on November 12, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since November 2026.

RPM Memory is made and published by NAOFUMI NOMOTO. AppBrain is an independent app data site and isn't affiliated with NAOFUMI NOMOTO. The app name, icon, screenshots and description belong to NAOFUMI NOMOTO and are shown as published on the App Store.

Developer information for NAOFUMI NOMOTO

NAOFUMI NOMOTO

Address:

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