USTA Flex vs Korta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
USTA Flex
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.
- 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
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With USTA Flex, you can play tennis at your level on a court near you, whenever it suits you. Get on the court and enjoy friendly, competitive singles or doubles matches. Whatever your level – beginner or advanced – you will play exciting matches, meet new people and improve your game. Flex leagues are taking place all across the US and all year round for adults over the age of 18. Leagues take place in a round-robin or ladder 2.0 format, and a season generally runs for 8 to 12 weeks. You can arrange matches whenever you want – so it’s ideal if you’re looking to compete around your busy lifestyle. Why you should join More tennis: Play 5-7 level-based matches while making new tennis friends Ultimate flexibility: With our in-app chat, scheduling matches around your life has never been easier. Play when you want, where you want Track your progress: Every match is an opportunity to improve your game and improve your WTN rating Features of the USTA Flex app - Find all you need in one place – entering leagues, setting up matches, inputting scores and match history - In-app chat – easily schedule matches with your opponents with individual and group chats - More to come: Set up your own flex leagues and join local events and communities to get the most out of your tennis Not sure of your level of play? No problem – we’ll find the right group for you using your ITF World Tennis Number, so you play opponents at the right level for you. What’s the ITF World Tennis Number? The ITF World Tennis Number is a rating system for all tennis players across the world. It makes it easier for everyone who plays tennis in US to organize and play against opponents of a similar standard. • A worldwide rating system that ranges from 40 (beginner players) to 1 (pro players). • Has separate ratings for Singles and Doubles players • Uses a sophisticated algorithm to calculate your rating and updates it every time you compete • Counts sets and matches played, which means the more you compete, the more accurate your WTN will be Game on! Download the USTA Flex App today and enter a world where more tennis matches are just a tap away. Join our community of passionate players and discover the joy of playing tennis on your terms. Let’s make every match count with USTA Flex!
Korta
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Tennis is better with people. Korta is where recreational players log their matches, build a real rating, and find their next hit. FIND YOUR PEOPLE Search the player directory by level and location, or connect in person on the spot with your Korta Code. Message players directly or start a group chat to get a game on the calendar. LOG EVERY MATCH Singles or doubles, three-set marathons, sessions that got cut short. Log the score in a few taps and keep your whole tennis history in one place. BUILD YOUR KORTA SCORE Every match you log moves your Korta Score, a rating made for rec tennis. Watch it change over time and see how you stack up against the people you actually play. POST A HIT Looking to play? Post a hit and let players join, or set your lineup ahead of time so everyone knows who's on court. A FEED FOR YOUR TENNIS LIFE See who your friends are playing. Comment on the wins, the upsets, the three-hour battles. SHARE THE WIN Turn any match into a share card built for Instagram stories, iMessage, and the group chat. Whether you're new in town, getting back into the game, or chasing down a rival, Korta makes it easier to play more tennis. Download Korta and log your first match today.
Screenshots
Verdict
The clearest difference is update cadence: Korta at every 5 days against USTA Flex's fortnightly. USTA Flex's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support 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.
USTA Flex ships an update fortnightly, Korta every 5 days. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.
| Parameter | USTA Flex | Korta |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (642 ratings) — better | — |
| Positive reviews | 40.7% of reviews | — |
| Number of ratings | 642 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 133 MB | 57 MB |
| Age rating | 4+ | 12+ |
| Developer | USTA | G & Z Holdings LLC |
In-app purchases
USTA Flex
No in-app purchases
Korta
No in-app purchases







