USTA Flex vs ITT Assist
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
USTA Flex
This platform connects tennis players of all levels for flexible, competitive matches. Arrange singles or doubles games around your schedule and improve your game with level-based competition and progress tracking.
- Level-based singles and doubles matches
- Flexible scheduling around your lifestyle
- In-app chat for easy coordination
- Track progress and WTN rating
- Round-robin or ladder league formats
- Find local leagues and communities
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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!
ITT Assist
This app provides ITT tennis players with access to team schedules, match details, player ratings, and Rolling League events. It allows users to record match scores, track rankings, and manage their participation in various leagues and tournaments.
- Team schedules and match information
- Player rankings and past match review
- Record team match scores
- Explore USTA information and Rolling League
- Manage ITT, USTA, and Rolling League accounts
- Racket and stringing history tracking
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ITT Assist is built for ITT tennis players. Your team schedules, match information, ratings and Rolling League events are now available in one integrated app. START WITH YOUR ITT PROFILE Sign in with Apple or Google and link your own ITT player profile. Returning players should use the same sign-in account to restore their profile. Available USTA associations are loaded from verified player records. No USTA website password is required. FOLLOW YOUR TEAM View ITT schedules, venues, courts, opponents and results. Follow team and player rankings, review past matches and keep track of your next match. RECORD TEAM MATCHES Use the ITT scorecard to record lineups, six lines, substitutions, Overtime, Super Tiebreak and final totals. User scorecards are private records and do not replace official results. EXPLORE USTA INFORMATION View supported USTA schedules, teams, opponents and set-by-set results. RLR is a calculated dynamic rating based on included match data. It is displayed separately from official USTA NTRP and does not determine USTA rating-level changes. Data availability depends on supported leagues, seasons and verified associations. PLAY IN ROLLING LEAGUE Enter Rolling League using your ITT profile. Explore available singles and doubles events, register, find a partner, arrange match times, record results and follow standings. Manage entry vouchers, orders and eligible refunds. Event dates, fees, eligibility and awards are shown in each event's rules. MANAGE YOUR ACCOUNT Switch between ITT, USTA and Rolling League from Home or Profile. Profile brings messages, player details and account settings together. Chinese and English follow your device language. RACKET TOOLS Record rackets and stringing history. Optional microphone access estimates string-bed frequency on the device; raw audio is not uploaded. Acoustic readings are reference estimates, not direct stringing-machine tension measurements. ITT Assist is independently developed by Hitup Tennis. It is not an official ITT or USTA app. Support: hituptennis@gmail.com
Screenshots
Verdict
The clearest difference is update cadence: ITT Assist at every 3 days against USTA Flex's every 3 weeks. ITT Assist also leads on rating (5.0 vs 4.8). USTA Flex's advantage is ratings volume (787 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model 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.
ITT Assist holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: USTA Flex has 787 ratings behind it against 1, so its average is the more settled of the two.
USTA Flex ships an update every 3 weeks, ITT Assist every 3 days. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.
| Parameter | USTA Flex | ITT Assist |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (787 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 41.4% of reviews | — |
| Number of ratings | 787 — better | 1 |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 130 MB | 52 MB |
| Age rating | 4+ | 12+ |
| Developer | USTA | Hitup Tennis |
Customer experience
USTA Flex
ITT Assist
Bugs and requests
USTA Flex
Reported bugs
11 issues- App works when it wants
- Constant notifications with no messages
- Cannot toggle back to see schedule
- WTN score not figured out
- Unable to login
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- Cannot sign in with Google SSO
- Cannot post score
- Error: could not load data from server
- Scores could not be inputted
- Bad at positioning and assignments for ladder matches
- Trouble to login
Requested features
6 requests- Link match times to calendars
- Calendar in the app
- Display all scheduled matches
- Input availability directly
- Google SSO integration
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- Match score editing controls
ITT Assist
Not enough reviews yet to summarise bugs or requests.
In-app purchases
USTA Flex
No in-app purchases
ITT Assist
No in-app purchases









