---
title: "SwingTool - Swing Weight — App Overview"
url: https://marlvel.ai/intel-report/sports/swingtool
category: Sports
developer: Sten Kaiser
platforms: ios
rating: 4.2 (17 ratings)
pricing: paid
report_level: overview
generated: 2026-04-24
last_verified: "2026-04-24T01:26:16.170Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers a cost-effective way to measure swing weight, users report that the setup process can be difficult and requires external instructional resources to master.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Sports |
| Rating | 4.2 ★ (17) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 2.1 |
| Developer | Sten Kaiser |

<!-- SECTION: Summary -->
## What is SwingTool - Swing Weight?

SwingTool is a sports utility app that calculates the swing weight and moment of inertia for equipment like tennis racquets, golf clubs, and baseball bats. By utilizing the iPhone's sensors to measure pendulum swing time, it provides an affordable alternative to traditional, expensive swing weight machines.

<!-- SECTION: Key Features -->
## Key Features

- **Pendulum-based Measurement**: Uses the iPhone to automatically calculate swing weight by measuring the swing time of equipment hanging as a pendulum.
- **Dynamic MOI Calculation**: Measures real dynamic swing weight (moment of inertia) rather than static weight for golf clubs.
- **Flexible Configuration**: Allows users to define custom points for both the swing axis and the calculation point.
- **Precision Timing**: Capable of measuring the swing time of any pendulum with 0.01s accuracy.

<!-- SECTION: Target Audience -->
## Who is it for?

Athletes and equipment enthusiasts looking to customize or tune the feel of their sports gear.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/swingtool-swing-weight/id408209116?uo=2)
- [Full Intelligence Report](https://marlvel.ai/intel-report/sports/swingtool)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/sports/swingtool).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*