# USTA Flex vs C2 Tennis

The clearest difference is ratings volume: USTA Flex at 752 against C2 Tennis's 7. USTA Flex also leads on iOS requirement (13.0 vs 15.1). C2 Tennis's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and in-app purchases there is nothing between them.

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

C2 Tennis holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: USTA Flex has 752 ratings behind it against 7, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | USTA Flex | C2 Tennis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (752 ratings)](https://appshunter.io/ios/app/usta-flex/id6446393326/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/c2-tennis/id6756866192/reviews)** |
| Number of ratings | **752** | 7 |
| Positive reviews | 39.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 133 MB | 120 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [USTA](https://appshunter.io/developer/327455872) | [C2 Tennis Academy](https://appshunter.io/developer/1862363524) |

## What reviewers say

### USTA Flex

[App page](https://appshunter.io/ios/app/usta-flex/id6446393326)

Find and play competitive tennis matches at your level on courts near you. Arrange games flexibly around your schedule and meet new players. Track your progress and improve your game with level-based singles or doubles matches.

**Highlights:** Find level-based tennis matches, Flexible scheduling with in-app chat, Singles and doubles competition, Track match history and progress, Utilizes ITF World Tennis Number for matchmaking, Organize and enter leagues

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

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly interface
- 👍 Easy to coordinate matches
- 👍 Easy score entry
- 👍 Excellent customer service
- 👍 Flexible scheduling

**What reviewers complain about**

- 👎 Not user-friendly
- 👎 App works inconsistently
- 👎 Constant notifications
- 👎 Cannot toggle to see schedule
- 👎 Score manipulation possible

**Reported bugs**

- App works when it wants
- Constant notifications with no messages
- Cannot toggle back to see schedule
- WTN score not figured out
- Unable to login

**Requested features**

- Link match times to calendars
- Calendar in the app
- Display all scheduled matches
- Input availability directly
- Google SSO integration


### C2 Tennis

[App page](https://appshunter.io/ios/app/c2-tennis/id6756866192)

This platform offers structured tennis training for players of all levels, from beginners to competitive juniors and adults. Easily explore programs, book classes, manage your schedule, and stay connected with academy updates and notifications. It focuses on developing technique, mindset, and a love for the sport.

**Highlights:** Browse and book tennis programs, View schedules and sessions, Manage player profile and account, Secure payments and enrollment, Academy updates and notifications, Professional coaching and training methods

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

**In-app purchases:** none


## Frequently asked questions

### Is USTA Flex free?

USTA Flex is free to download, with no in-app purchases.

### Is C2 Tennis free?

C2 Tennis is free to download, with no in-app purchases.

### Which has better reviews, USTA Flex or C2 Tennis?

C2 Tennis is rated higher. USTA Flex averages 4.8 out of 5 from 752 ratings, while C2 Tennis averages 5.0 from 7 ratings.

### Do USTA Flex or C2 Tennis have ads?

Neither USTA Flex nor C2 Tennis shows ads.

### Which is updated more often, USTA Flex or C2 Tennis?

USTA Flex ships an update every 3 weeks, and C2 Tennis every 3 weeks. Most recently, USTA Flex was updated on October 24, 2026 and C2 Tennis on October 7, 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.*