# Fuzzy Yellow Balls vs Shank Tracker

The clearest difference is in-app purchases: Shank Tracker at none against Fuzzy Yellow Balls's 8. Shank Tracker also leads on rating (5.0 vs 4.7). Fuzzy Yellow Balls's advantage is ratings volume (422 vs 2). On price, update cadence, 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. Shank Tracker asks for nothing beyond the download.

Shank Tracker holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Fuzzy Yellow Balls has 422 ratings behind it against 2, so its average is the more settled of the two.

Fuzzy Yellow Balls ships an update fortnightly, Shank Tracker monthly. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Fuzzy Yellow Balls | Shank Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (422 ratings)](https://appshunter.io/ios/app/fuzzy-yellow-balls/id1549661256/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/shank-tracker/id6760981427/reviews)** |
| Number of ratings | **422** | 2 |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fuzzy Yellow Balls, LLC](https://appshunter.io/developer/1549661258) | [guillermo chaves](https://appshunter.io/developer/1887130935) |

## 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


### Shank Tracker

[App page](https://appshunter.io/ios/app/shank-tracker/id6760981427)

This app helps tennis players improve their game by tracking match results, session data, and tournament performance. It provides visual trend charts and monthly breakdowns to identify weaknesses and track progress over time. Gain a data-driven edge to understand and elevate your performance on the court.

**Highlights:** Track win rates by surface, opponent, and format, Monitor progress with visual trend charts, Log every match with set and leg details, Built-in tournament tracking, Monthly breakdowns for pattern identification, Personal bests and streak tracking

**Features:** macOS Compatibility, Vision Pro support

**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 Shank Tracker free?

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

### Which has better reviews, Fuzzy Yellow Balls or Shank Tracker?

Shank Tracker is rated higher. Fuzzy Yellow Balls averages 4.7 out of 5 from 422 ratings, while Shank Tracker averages 5.0 from 2 ratings.

### Do Fuzzy Yellow Balls or Shank Tracker have ads?

Neither Fuzzy Yellow Balls nor Shank Tracker shows ads.

### Which is updated more often, Fuzzy Yellow Balls or Shank Tracker?

Fuzzy Yellow Balls ships an update fortnightly, and Shank Tracker monthly. Most recently, Fuzzy Yellow Balls was updated on October 27, 2026 and Shank Tracker on October 14, 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.*