Comparison

Court4u vs Spinfire Pro 2

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Court4u

This app connects tennis players with available courts at local clubs. It digitizes court booking, previously managed manually, making it easier for both clubs and players to find and reserve court time. Features include tournament management and game statistics.

Highlights
  • Online court booking
  • Club tournament management
  • Game and working time statistics
  • Multiple profile support
  • Digital court occupancy
Features
Read full description

This app takes over the court occupancy of tennis clubs, which was previously operated in paper form. It brings the clubs' free tennis courts together with the players. Tennis clubs can use this app to make their tennis courts available for online occupancy. Tennis players can use these tennis courts easily and simply with this app. In addition, the app offers the following features: - Tournament management for club tournaments - Game and working time statistics - Quick profile change for use with multiple profiles For questions and help, please contact our support at info@court4u.de or visit the 'Help, Contact, FAQs' section in the app

About

Spinfire Pro 2

This app enhances tennis, padel, and pickleball training with AI-powered drill creation and precise shot customization. It offers multiple modes for all skill levels, allowing users to fine-tune speed, spin, and trajectory for personalized practice sessions.

Highlights
  • AI Drill Creator
  • Precision Aiming
  • Fine Tuning Controls
  • Adjustable Angles
  • Multiple Skill Modes
  • Customizable Drills
  • Individual Shot Control
Features
Read full description

Introducing the Ultimate Tennis Training Machine App Take your tennis training to the next level with our state-of-the-art tennis training machine app, designed to cater to players of all skill levels. Engineered for precision, performance, and ease of use, this app will transform the way you train, offering unparalleled practice sessions. One App, Multiple Sports: Spinfire Pro 2 Tennis & Padel Machines: Our machine and app has support for Tennis, Padel & Lacrosse. Spinfire Pro 2 Pickleball Machine: Our same app allows for customised shot placement and drills Pickleball. Key Features: - AI Drill Creator: Choose your skill level, tell it the types of shots you want to practice and how many ball and it will automatically create your customised Drill. We include numerous examples to get you going. - Precision Aiming: When paired with Spinfire Touch balls, achieve consistent accuracy with our high-tech ball delivery mechanism, ensuring the perfect shot placement every time. - Fine Tuning: Our bulk modifier allows you to modify all or some existing shots for all variables: Speed, Spin, Elevation, Width, Flip delivery side, Interval and more depending on Wind conditions or Ball types of the day. - Adjustable Angles: Customise the trajectory and angles, simulating real match conditions for full single court widths to elevations from 0 to 60 degrees for perfect Lobs or Volleys Multiple Modes for All Skill Levels Beginner Mode: Get started quickly with our court map selection and easy-to-use settings perfect for novice players. Intermediate Mode: Great for those who have played for a while and trying to level up specific techniques or shots. Advanced Mode: Unlock more sophisticated features designed for higher-level players and coaches for perfect ball placement. Versatile Training Programs Customisable Drills: Create and save custom drills tailored to your specific needs, from basic practice routines to advanced training programs with up to 30 shots per drill. Bulk Modifications: Adjust speed, spin, elevation, interval, and width for all or selected shots, and flip sides from forehand to backhand effortlessly. Quick Drills: Choose from vertical delivery locations, horizontal random delivery at three widths, and 2-line drills at three different widths. Individual Shot Control Test Shots: Individually test each shot to ensure perfect delivery. Shot Management: Easily remove or duplicate shots within a drill. Single Fire Mode: Ideal for coaching, send a single shot and pause for feedback. Timer Mode: Start play in 10, 20, 30, or 40 seconds to prepare before a drill starts. Enhanced Convenience Randomisation: Randomise speed, spin, and interval for varied training. Manual Remote Mode: Quickly choose a single position on the court or make finer adjustments with auto-calculation based on speed and spin. Over-the-Air Updates Continuous Improvement: With our dedicated internal development team, receive frequent updates and long-term support for both the machine and software. User-Friendly Interface Intuitive Controls: Effortlessly adjust settings with a user-friendly interface, making it simple to fine-tune your training sessions. Remote Operation: Control the machine remotely, allowing for seamless adjustments during practice without interrupting your flow. Multi-Language Support Language Options: Available in English, Spanish, German, and Chinese, with more languages coming soon. Dark/Light Modes: Choose between dark or light modes for optimal visibility. Why Choose Our Tennis Training Machine App? Enhance Your Skills: Whether you're a beginner or a seasoned pro, our app helps you improve your skills faster and more efficiently. Professional-Grade Training: Train like the pros with an app trusted by coaches and players worldwide. Unmatched Convenience: Enjoy the flexibility of practising whenever and wherever you want, without the need for a practice partner.

Screenshots

Court4u4 screens
Spinfire Pro 24 screens

Verdict

The call

Court4u and Spinfire Pro 2 are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Court4u ships an update fortnightly, Spinfire Pro 2 monthly. The most recent releases landed on October 9, 2026 and October 27, 2026 respectively.

ScorecardNo meaningful differences
Court4u versus Spinfire Pro 2: the parameters behind the verdict, then further details
ParameterCourt4uSpinfire Pro 2
PriceFreeFree
Rating—3.0 (1 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings—1 — better
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.2 — better13.0
Further details — not scored
Size84 MB54 MB
Age rating4+4+
DeveloperAndy GrotheThe trustee for The Fry Developments Trust

In-app purchases

None

Court4u

No in-app purchases

None

Spinfire Pro 2

No in-app purchases

Questions

Is Court4u free?
Court4u is free to download, with no in-app purchases.
Is Spinfire Pro 2 free?
Spinfire Pro 2 is free to download, with no in-app purchases.
Do Court4u or Spinfire Pro 2 have ads?
Neither Court4u nor Spinfire Pro 2 shows ads.
Which is updated more often, Court4u or Spinfire Pro 2?
Court4u ships an update fortnightly, and Spinfire Pro 2 monthly. Most recently, Court4u was updated on October 9, 2026 and Spinfire Pro 2 on October 27, 2026.

Other comparisons