TennisLocker vs ServiceLine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TennisLocker
This app streamlines tennis program management for coaches and facilities, offering data-driven player development tools. It centralizes performance data, provides insightful analytics, and enhances communication between coaches, players, and parents.
- Session based attendance
- Player evaluations
- Fitness testing
- Tournament analytics
- Push notifications
- File sharing
- In-depth analytics
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• Invite Players from within the App, share a facility code so players and parents can sign themselves up. • Player triage review and approve or decline new sign-ups, with decline reasons and bulk actions. • Redesigned analytics with clearer attendance charts with trends and filters, plus per-player evals and fitness comparisons. • Fitness "Distance" tests enter and view results in feet/inches or centimeters by region. • Faster, more reliable app and improved push notifications. • Video playback fixes across Goals, Files, and How-To videos, plus many bug fixes.
ServiceLine
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.
- 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
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Skip the pro shop. Skip chasing down a stringer. ServiceLine connects you with trusted local stringers who pick up your racket, restring it to your exact specs, and get it back in your hands in just a couple of days. Beat the pro shop markup and hassle of never seeming to find any stringers nearby. No haggling. No delays. No surprise fees. Find a stringer nearby, filtered by distance, price, turnaround, and even whether they use an electric machine. Pick your string, set your main and cross tensions, choose how many rackets, and decide between drop-off or having your stringer come to you. See your total before you confirm, then track your racket at every step, from pickup to strung to back in your hands. What you get with ServiceLine: • Local stringers, rated and reviewed by real players • Separate main and cross tension control for your exact setup • Filters for electric machines, fast delivery, and stringers who come to you • Transparent pricing, so you see your total before you pay • Secure checkout powered by Stripe • Real-time messaging with your stringer • Push notifications for every status update, from pickup to delivery • Full order history and live status tracking on every job • Built-in tools to report content or block users anytime Breaking strings every week, or just want a fresh setup before your next match? ServiceLine matches you with stringers who get it right the first time, and deliver faster, so you spend less time benched and more time on court. Now live in select US cities, with more on the way. By using ServiceLine, you agree to our Terms of Service and Privacy Policy: servicelinellc.com/terms-and-services.pdf servicelinellc.com/privacy-policy.pdf
Screenshots
Verdict
The clearest difference is rating: ServiceLine at 5.0 against TennisLocker's 4.4. TennisLocker's advantage is ratings volume (65 vs 6) and iOS requirement (16.6 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ServiceLine holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: TennisLocker has 65 ratings behind it against 6, so its average is the more settled of the two.
TennisLocker ships an update every 2 weeks, ServiceLine fortnightly. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.
| Parameter | TennisLocker | ServiceLine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (65 ratings) | 5.0 (6 ratings) — better |
| Number of ratings | 65 — better | 6 |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 120 MB | 33 MB |
| Age rating | 4+ | 12+ |
| Developer | Sports Analytics | Stringin LLC |
In-app purchases
TennisLocker
No in-app purchases
ServiceLine
No in-app purchases
Questions
Is TennisLocker free?
Is ServiceLine free?
Which has better reviews, TennisLocker or ServiceLine?
Do TennisLocker or ServiceLine have ads?
Which is updated more often, TennisLocker or ServiceLine?
Other comparisons
