# SwingTool vs String Master

The clearest difference is price: String Master at Free against SwingTool's $1.99. String Master also leads on rating (5.0 vs 4.2) and update cadence (weekly vs every 7 months). SwingTool's advantage is iOS requirement (8.0 vs 15.6). On ratings volume, ads, in-app purchases and device support there is nothing between them.

String Master is free to download; SwingTool costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

String Master holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 17 and 7 respectively.

SwingTool ships an update every 7 months, String Master weekly. Both last shipped on October 17, 2026.

## The numbers

| Metric | SwingTool | String Master |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.2 (17 ratings)](https://appshunter.io/ios/app/swingtool-swing-weight/id408209116/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/string-master-tennis-log/id6757102423/reviews)** |
| Number of ratings | **17** | 7 |
| Positive reviews | 84.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 71 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sten Kaiser](https://appshunter.io/developer/309325742) | [ORYONG KIM](https://appshunter.io/developer/1864541863) |

## What reviewers say

### SwingTool

[App page](https://appshunter.io/ios/app/swingtool-swing-weight/id408209116)

Easily measure the swing weight of sports equipment like tennis racquets, golf clubs, and baseball bats. This tool simplifies a complex measurement, allowing you to understand how your equipment feels when you swing it.

**Highlights:** Measures swing weight of various sports equipment, Calculates swing weight at any chosen point, Independent swing point and hanging point selection, Faster and more accurate than traditional methods, Measures pendulum swing time with 0.01s accuracy, Performs MOI-matching for dynamic swing weight

**In-app purchases:** none


### String Master

[App page](https://appshunter.io/ios/app/string-master-tennis-log/id6757102423)

Optimize your tennis game by precisely tracking string tension and durability. Record every restring, analyze string performance, and discover the best setups for your playstyle. Never guess about your strings again.

**Highlights:** Smart Restring logging, Custom string input, Smart String Finder, Restring reminders, Detailed logs and history, Hybrid setup support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SwingTool free?

SwingTool costs $1.99, with no in-app purchases.

### Is String Master free?

String Master is free to download, with no in-app purchases.

### Which has better reviews, SwingTool or String Master?

String Master is rated higher. SwingTool averages 4.2 out of 5 from 17 ratings, while String Master averages 5.0 from 7 ratings.

### Do SwingTool or String Master have ads?

Neither SwingTool nor String Master shows ads.

### Which is updated more often, SwingTool or String Master?

SwingTool ships an update every 7 months, and String Master weekly. Most recently, SwingTool was updated on October 17, 2026 and String Master on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*