# Fuzzy Yellow Balls vs Spinfire Pro 2

The clearest difference is in-app purchases: Spinfire Pro 2 at none against Fuzzy Yellow Balls's 8. Spinfire Pro 2 also leads on iOS requirement (13.0 vs 15.1). Fuzzy Yellow Balls's advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Fuzzy Yellow Balls sells 8 in-app purchases, starting at $9.99 per month. Spinfire Pro 2 asks for nothing beyond the download.

Fuzzy Yellow Balls ships an update fortnightly, Spinfire Pro 2 monthly. The most recent releases landed on September 22, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Fuzzy Yellow Balls | Spinfire Pro 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (422 ratings)](https://appshunter.io/ios/app/fuzzy-yellow-balls/id1549661256/reviews)** | — |
| Number of ratings | **422** | — |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 54 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Fuzzy Yellow Balls, LLC](https://appshunter.io/developer/1549661258) | [The trustee for The Fry Developments Trust](https://appshunter.io/developer/1750172875) |

## What reviewers say

### Fuzzy Yellow Balls

[App page](https://appshunter.io/ios/app/fuzzy-yellow-balls/id1549661256)

Access a comprehensive library of tennis books and instructional programs directly on your mobile device. This app functions like a digital reader with integrated video playback for a complete learning experience.

**Highlights:** Access tennis books and programs, Integrated video player, Mobile library access, Digital learning platform

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FYB Monthly | $9.99 | per month |
| FYB Monthly | $9.99 | per month |
| FYB Yearly | $99.99 | per year |
| FYB Yearly | $99.99 | per year |
| FYB Yearly | $99.99 | per year |
| FYB Yearly 2023 | $149.99 | per year |
| FYB Yearly 2023 | $199.99 | per year |
| Lifetime Access | $499.99 | one-time |

**What reviewers like**

- 👍 Intuitive layout and easy navigation
- 👍 Good information and valuable content
- 👍 Informative content on specific techniques
- 👍 Great value strategy and technical advice
- 👍 App appears to have full range of offerings

**What reviewers complain about**

- 💸 Expensive courses
- 👎 Annoying presenter/host (Will)
- 👎 Mansplainy and awkward host
- 👎 Videos glitch and not auto-play
- 👎 App would not load/access material

**Reported bugs**

- App would not load for days
- Videos glitch when turning phone
- Videos not auto-play
- Consistently freezes videos
- Delay in videos

**Requested features**

- Add auto-play feature for lessons
- Improve video player functionality
- Provide more detailed 'why' behind rule differences
- Better application of % differences for junior/amateur players
- More fundamentals vs. % comparisons


### Spinfire Pro 2

[App page](https://appshunter.io/ios/app/spinfire-pro-2/id6503728031)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fuzzy Yellow Balls free?

Fuzzy Yellow Balls is free to download, with in-app purchases available.

### Is Spinfire Pro 2 free?

Spinfire Pro 2 is free to download, with no in-app purchases.

### Do Fuzzy Yellow Balls or Spinfire Pro 2 have ads?

Neither Fuzzy Yellow Balls nor Spinfire Pro 2 shows ads.

### Which is updated more often, Fuzzy Yellow Balls or Spinfire Pro 2?

Fuzzy Yellow Balls ships an update fortnightly, and Spinfire Pro 2 monthly. Most recently, Fuzzy Yellow Balls was updated on September 22, 2026 and Spinfire Pro 2 on May 16, 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.*