# String GOAT vs ServiceLine

The clearest difference is rating: ServiceLine at 5.0 against String GOAT's 3.8. ServiceLine also leads on in-app purchases (none vs 5) and ads (none vs shown). String GOAT's advantage is update cadence (every 3 days vs fortnightly) and iOS requirement (16.1 vs 18.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. String GOAT sells 5 in-app purchases, starting at $4.99 per month. ServiceLine asks for nothing beyond the download.

ServiceLine holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 9 and 6 respectively.

String GOAT ships an update every 3 days, ServiceLine fortnightly. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | String GOAT | ServiceLine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (9 ratings)](https://appshunter.io/ios/app/string-goat-for-tennis/id6444395925/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/serviceline/id6777587708/reviews)** |
| Number of ratings | **9** | 6 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 115 MB | 33 MB |
| Requires iOS | **16.1** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [YOSEOP YOON](https://appshunter.io/developer/1654444723) | [Stringin LLC](https://appshunter.io/developer/1896337718) |

## What reviewers say

### String GOAT

[App page](https://appshunter.io/ios/app/string-goat-for-tennis/id6444395925)

Track your tennis string performance and racket setups. Log detailed specs, rate performance across key categories with radar charts, and get AI-powered recommendations for optimal string choices and tension.

**Highlights:** Racket and string setup logging, Performance rating with radar charts, Tension history analysis, AI-powered string recommendations, Cloud sync and backup, Home screen widget

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Premium Monthly | $9.99 | per month |
| Pro Yearly | $41.99 | per year |
| Premium Yearly | $83.99 | per year |
| String GOAT Premium Service | $9.99 | one-time |


### ServiceLine

[App page](https://appshunter.io/ios/app/serviceline/id6777587708)

Connects tennis players with local stringers for racket restringing. Offers transparent pricing, custom tension settings, and real-time tracking from pickup to delivery. Available in select US cities.

**Highlights:** Local stringers with ratings and reviews, Custom main and cross tension control, Filters for electric machines and delivery options, Transparent pricing with upfront totals, Real-time messaging with stringers, Push notifications for order status updates, Live order tracking from pickup to delivery

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

**In-app purchases:** none


## Frequently asked questions

### Is String GOAT free?

String GOAT is free to download, with in-app purchases available.

### Is ServiceLine free?

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

### Which has better reviews, String GOAT or ServiceLine?

ServiceLine is rated higher. String GOAT averages 3.8 out of 5 from 9 ratings, while ServiceLine averages 5.0 from 6 ratings.

### Do String GOAT or ServiceLine have ads?

String GOAT shows ads; ServiceLine does not.

### Which is updated more often, String GOAT or ServiceLine?

String GOAT ships an update every 3 days, and ServiceLine fortnightly. Most recently, String GOAT was updated on October 12, 2026 and ServiceLine on October 5, 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.*