Chronographer
ユーティリティ
無料 · iPad対応
Chronographer helps you track the long-term accuracy of your mechanical watches.
Use Chronographer to periodically collect data points comparing a watch’s time to the current correct time. Chronographer stores this information and uses it to create charts that help you visualize your watches’ performance over time. It also calculates detailed metrics about each watch’s overall accuracy. Chronographer tracks offsets (the difference from the correct time) and deviation (how many seconds a watch gains or loses per day). Graphs show individual data points and best-fit trend lines over timespans ranging from a week to a year. Histograms provide insight into how various offset and deviation values are distributed.
Chronographer calculates the following metrics:
• Average Offset
• Max. Positive Offset
• Max. Negative Offset
• Last Offset
• Net Gain/Loss
• Best-Fit Deviation
• Average Deviation
• Fastest Deviation
• Slowest Deviation
• Last Deviation
• Deviation Variance
• Best-Fit Deviation Drift
Chronographer can store information about your whole watch collection. Give each watch a name and, optionally, a longer description. You can select a picture from your Photos library and add additional notes, such as the watch’s specifications, purchase details, and service history. All information can be stored in iCloud and automatically synchronized between your devices.
You can use Chronographer to track positional variation. Whenever you record a data point, you can include the position (dial up, crown up, etc.) that the watch was stored in. Then, you can restrict the charts and metrics to specific positions and compare the results.
For best results, collect a data point for each of your watches every day or two.
Chronographer includes a large digital clock to help when you set your watches.
You can export your watch data to local storage or to iCloud Drive. This is useful for backups and to share your data.
For more information, including a detailed user’s guide, see https://www.rmfrance.net/chronographer
• Use a simplified New Data Point form when adding a watch’s first data point (no mention of the previous data point).
• Fixed an issue where the scatter plot scroll position sometimes shifted when switching between the offset and deviation views.
• Fixed handling of swipe-to-dismiss for the Welcome sheet.
• Performance improvements.
デベロッパである“Robert France”は、アプリのプライバシー慣行に、以下のデータの取り扱いが含まれる可能性があることを示しました。詳しくは、 デベロッパプライバシーポリシー を参照してください。
データの収集なし
デベロッパはこのアプリからデータを収集しません。
アクセシビリティ
デベロッパは、このアプリがサポートしているアクセシビリティ機能をまだ示していません。 詳しい情報
情報
- 販売元
- Robert France
- サイズ
- 2.6 MB
- カテゴリ
- ユーティリティ
- 互換性
iOS 17.6以降が必要です。
- iPhone
iOS 17.6以降が必要です。 - iPad
iPadOS 17.6以降が必要です。 - Mac
macOS 14.6以降とApple M1以降のチップを搭載したMacが必要です。 - Apple Vision
visionOS 1.3以降が必要です。
- 言語
- 英語
- 年齢制限
4+
- 4+
- 著作権
- © 2026 Robert M. France