Propeller Shaft Torque Calc
Shanghai Sheyuan Network Technology Co., Ltd.
Getting the latest details from the App Store…
Shanghai Sheyuan Network Technology Co., Ltd.
Getting the latest details from the App Store…
Ranks come from Apple's public App Store charts, checked once a day. Appulse Index isn't affiliated with Apple.
Higher on the chart is better: #1 is at the top.
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United Kingdom · Paid · Utilities: best #22, latest #22, over 10 snapshots since 18 Oct.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| United Kingdom· Paid · Utilities · best #22 · 1 day | #22 |
Top of Paid · Utilities in United Kingdom. Propeller Shaft Torque Calc is #22 there. Changes are over 7 days.
| App | Best rank now | Released | App Store |
|---|---|---|---|
 Laser Level Grade CalculatorUtilities · | Paid · UtilitiesCanada#36 | ||
 Chlorine Dose CalculatorUtilities · | Not charting | ||
 Rigging Sling Angle CalculatorUtilities · | Not charting |
From the app's App Store listing.
Repowering your boat and need to know if the existing shaft can handle more torque? Enter engine HP, RPM, and gear ratio to get required shaft diameter, torsional stress, and critical speed margin — so you avoid a broken shaft at sea.
TORQUE CALCULATOR Enter engine horsepower, shaft RPM, and safety factor. Calculates required shaft torque, minimum shaft diameter, and torsional stress. Supports multiple shaft materials.
SHAFT SIZE TABLE Reference table of common shaft diameters (3/4 to 4…
Version 1.0.2 · 7 Jul 2026 ·
Added a More Pro Tools section to discover related field calculators.
How the app presents itself on the App Store. Select a screenshot to open it full size.
What Apple publishes about this app. Ratings are from one country's App Store.
Higher on the chart is better: #1 is at the top.
Sign in to see 30 days, 90 days and all history.
United Kingdom · Paid · Utilities: best #22, latest #22, over 10 snapshots since 18 Oct.
Every chart this app is in right now, best position first.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| United Kingdom· Paid · Utilities · best #22 · 1 day | #22 |
Entries, big moves, #1s and new versions we've recorded, by day.
Top of Paid · Utilities in United Kingdom. Propeller Shaft Torque Calc is #22 there. Changes are over 7 days.
Their other apps that Appulse has seen in the charts, charting ones first.
| App | Best rank now | Released | App Store |
|---|---|---|---|
Laser Level Grade CalculatorUtilities · | Paid · UtilitiesCanada#36 | ||
Chlorine Dose CalculatorUtilities · | Not charting | ||
Rigging Sling Angle CalculatorUtilities · | Not charting |
Ranks come from Apple's public App Store charts, checked once a day. Appulse Index isn't affiliated with Apple.
| Not enough history yet |
| Not enough history yet |
| #22 |
| #22 |
| 1 |
| 1 |
