# Tennis String Hub vs ServiceLine

The clearest difference is ratings volume: ServiceLine at 6 against Tennis String Hub's 1. Tennis String Hub's advantage is iOS requirement (15.0 vs 18.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Tennis String Hub against 5.0 for ServiceLine. That said, the two scores are not equally well evidenced: ServiceLine has 6 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Tennis String Hub | ServiceLine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tennis-string-hub/id6757133258/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/serviceline/id6777587708/reviews) |
| Number of ratings | 1 | **6** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | Free |
| Size | 9 MB | 33 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Carlos Nolasco](https://appshunter.io/developer/1863495756) | [Stringin LLC](https://appshunter.io/developer/1896337718) |

## What reviewers say

### Tennis String Hub

[App page](https://appshunter.io/ios/app/tennis-string-hub/id6757133258)

This app helps tennis players and stringers manage racquet setups, string choices, and restring schedules. It offers AI-powered recommendations based on extensive string data and connects players with local stringers.

**Highlights:** AI-powered string recommendations, Racquet setup and history tracking, Restring schedule based on playtime, Community hub for advice, Find local stringers, Job tracking for stringers, Inventory management for stringers

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Tennis String Hub free?

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

### Is ServiceLine free?

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

### Which has better reviews, Tennis String Hub or ServiceLine?

Tennis String Hub and ServiceLine are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do Tennis String Hub or ServiceLine have ads?

Neither Tennis String Hub nor ServiceLine shows ads.

### Which is updated more often, Tennis String Hub or ServiceLine?

Tennis String Hub ships an update fortnightly, and ServiceLine fortnightly. Most recently, Tennis String Hub was updated on September 20, 2026 and ServiceLine on September 18, 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.*