Hydrogen Sports vs SDTRC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hydrogen Sports
Control portable ball machines for tennis and pickleball. Design custom drills or use pre-built routines to improve your game. Adjust target, spin, and speed with an intuitive interface.
- Control ball machines
- Tennis and pickleball practice
- Custom drill design
- Pre-built routines
- Adjust target, spin, and speed
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Unlock the full potential of your Proton or Electron with the official Hydrogen Sports app. Whether you’re hitting the tennis court or the pickleball court, our intuitive interface lets you run built-in practice routines or design your own custom drills with just a few taps. Simply select your target, spin, and speed, and let the machine do the rest.
SDTRC
Manage your club membership, view statements, and update billing information. Reserve courts for tennis, pickleball, and racquetball, and track your existing bookings.
- Member check-in
- View statements
- Change billing payment
- View personal information
- Reserve courts
- View court reservations
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• Allows Member to Check-in • Allows Member to view their Statement • Allows Member to change their Billing Payment • Allows Member to View their Personal Information • Ability to reserve Tennis, Pickleball and Racquetball Courts • View Reserved Court and Time
Screenshots
Verdict
The clearest difference is rating: Hydrogen Sports at 4.1 against SDTRC's 2.0. Hydrogen Sports also leads on update cadence (every 11 days vs every 7 months) and ratings volume (45 vs 3). SDTRC's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model 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.
Hydrogen Sports holds the better App Store score, 4.1 against 2.0. That said, the two scores are not equally well evidenced: Hydrogen Sports has 45 ratings behind it against 3, so its average is the more settled of the two.
Hydrogen Sports ships an update every 11 days, SDTRC every 7 months. Both last shipped on November 3, 2026.
| Parameter | Hydrogen Sports | SDTRC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (45 ratings) — better | 2.0 (3 ratings) |
| Positive reviews | 38.1% of reviews | — |
| Number of ratings | 45 — better | 3 |
| Update frequency | Every 11 days — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Hydrogen Sports LLC | San Diego Tennis and Raquet Club |
Customer experience
Hydrogen Sports
SDTRC
In-app purchases
Hydrogen Sports
No in-app purchases
SDTRC
No in-app purchases
Questions
Is Hydrogen Sports free?
Is SDTRC free?
Which has better reviews, Hydrogen Sports or SDTRC?
Do Hydrogen Sports or SDTRC have ads?
Which is updated more often, Hydrogen Sports or SDTRC?
Other comparisons
