Tennis Ball Bounce Meter

发行商 Chicago Story AppTrack Ninja。

This app measures the quality of used tennis balls by comparing the bounce height of a used ball to that of a new ball. One-Time In-App Purchase – $3.99: Unlock unlimited lifetime access to bounce height comparisons.

分类: Sports

的 App Store 排名、截图、估算和类似应用。 Tennis Ball Bounce Meter.

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Tennis Ball Bounce Meter: 收入、下载量与关键词 | AppTrack Ninja