# TENNIIX — user reviews > 51 indexed App Store user reviews of TENNIIX by Shenzhen Enhanced Power Technology Co., Ltd., rated 2.70/5 from 39 ratings. - Source: https://appshunter.io/ios/app/tenniix/id6752846732/reviews - App overview in markdown: https://appshunter.io/ios/app/tenniix/id6752846732.md - Rating breakdown: 5★ 9 · 4★ 8 · 3★ 3 · 2★ 1 · 1★ 18 ## Newest reviews (12 of 51) ### 2/5 — Many issues - not very intuitive *2026-08-18, version 1.5.4* Heavy on marketing but little on substance, e.g. actual documentation and use info weak. Landing calibration: “short serve” instead of “shorter serve” for clarity. AI module assigns points in match mode happy to send balls out of bounds when using top spin. If you are 3.5 or higher, be prepared to do a lot of trial and error to figure how to operate different features. I don’t think the marketing folks even tried to use the machine. Check pingbot, it was not available when I got tenniix. They might put more focus on the use-performance over marketing. ### 2/5 — Many issues - not very intuitive *2026-08-12* Landing calibration:When selecting “short serve” as in “serve is short” the app makes it even shorter. “Higher serve” works as expected though. After calibrating machine on baseline, the training mode pic shows machine in between serve and baseline. It’s not one of the positions recommended in the manual. AI module assigns can assign points in match mode but will happily send balls out of bounds. ### 4/5 — Goodish *2026-07-16* Account errors, firmware errors, but once i finally got it working the app was fine and did what i expected. ### 2/5 — バグ多い *2026-05-28* ・最新のファームウェアにエラーが出て更新できない ・最大速度のフラット球種で仰角を14°以下に出来ない ・カスタムで落下地点や球種を登録していると、登録出来なくなる アプデに期待 ### 3/5 — 本体接続なしでのアプリ内容確認や設定をしたいです。 *2026-05-16* Bluetooth接続せずにトレーニングモードなどの設定をさわったり、操作できるようにしてほしい。コート外で事前に色々設定を確認したり、設定を作ったりできるので。今のままだとTenniix本体を起動させて接続する必要があるので不便です。 ### 3/5 — 使ってみて思ったこと *2026-05-15* 早速使ってみて感じたことです。 アプリの画面について 動作（球出し）中は画面にワンタップで動作が止まる 球出しの停止ボタンを大きく表示した方がいいです 今の仕様ですと「◽️」→「現在進行中のサーブをシャンセルしますが」→「OK」と段階を踏まなければならず ボール射出中にスマホの画面を数秒凝視しないといけません。 これですと停止のスマホ操作中に何球か球が出てしまい危険を感じました。 またボタンも小さく、炎天下など画面の見にくいシチュエーションでは 停止操作がしにくいです。 改善のご検討をお願いいたします ### 4/5 — Flexible training customization *2026-04-30, version 1.3.5* You can create training plans based on your own needs — very flexible and practical. ### 4/5 — Great update optimization *2026-04-30, version 1.3.5* The experience has gotten even better after the update — noticeable improvements in stability and smoothness. ### 3/5 — Great Potential, Needs Polish *2026-04-28, version 1.3.5* Average experience. Love the concept of controlling the machine from my phone, but the response delay is frustrating. Settings don't always save properly. 3 stars for potential, waiting for improvements ### 4/5 — Looking forward to new features *2026-04-28, version 1.3.5* Perfectly fine for daily training. Would be great to have stats or data tracking. ### 4/5 — Supports Spanish *2026-04-26, version 1.3.5* Good overall experience. Would love to see more language options. ### 4/5 — Smart and flexible *2026-04-26, version 1.3.5* Really suitable for people who don't have time to find a hitting partner. You can practice anytime, anywhere. ## Most critical reviews (10 lowest-rated) ### 1/5 — Sloppy - they never bothered to test the app or their instructions *2026-07-28* Landing calibration:When selecting “short serve” as in “serve is short” the app makes it even shorter. “Higher serve” works as expected though. The x is so small, impossible to see when the sun is bright. After calibrating machine on baseline, the training mode pic shows machine in between serve and baseline. It’s not even one of the positions recommended in the manual. The balls fly short with the default settings. It’s my third session, Im still struggling with the thing. Also some balls fly much higher. ### 1/5 — ログインできない *2026-07-12* アカウント登録してるのに登録されていないことになっているため、ログインできない。改善求めます。 ### 1/5 — Can not use features *2026-07-08, version 1.5.1* The app requires an account to use many of the advanced features, but the creat an account flows don’t work. ### 1/5 — パスワードリセット出来ません *2026-07-07* いろいろと不具合ありすぎ。。。 ### 1/5 — 使えない *2026-06-30* 不具合だらけでアカウントの登録すらできない。早急に対応してください。届いても何も使えない。 追記 1週間使っていないだけで電話番号、メールアドレスのアカウント情報が登録されていないとされ、アカウントが削除される可能性がある。バグが多すぎる。 ### 1/5 — ソフトの出来が残念！ *2026-06-12* ハードや機能面はよく出来てるが、何しろ操作性が悪い。アプリを通して設定やハードの操作を行わなければいけないが、直感的なインターフェースとはなっておらず、必要な設定に辿り着くまで手間ががかかり過ぎる。 アップデートで今後操作性や使い勝手が向上することを期待してます。 ### 1/5 — I can't register a new account *2026-06-03* I can't register a new account. I can't register a password no matter how many times I try. Please improve it quickly. ### 1/5 — Warning!!! *2026-05-27, version 1.4.1* Do not buy this product.It doesn’t work most of the time. ### 1/5 — 使えない *2026-05-18* 不具合だらけでアカウントの登録すらできない。早急に対応してください。届いても何も使えない。 ### 1/5 — False advertisement of speeds *2026-05-06, version 1.3.5* For anyone buying this machine, I would certainly caution you to check the actual speeds the machine can deliver. I have read reviews online now to know that they advertise false speeds. My unit only delivers balls at 50 mph max, even though I increased my power from 60% - 100% step by step, the wheels keep turning faster, but the ball speeds remain the same when I measured it. It is truly a big scam, if they advertise it at 75 mph top speeds. The app program customization is also a nightmare, can’t adjust any angles, speeds after tapping a target location on court. So it make it very difficult to make custom shots to your liking. No answers from the customer service. Need to know if I got stuck with a bad unit or all of them are the same. ## Most praised reviews (10 highest-rated) ### 5/5 — app越来越好 *2026-06-25* 现在app比之前做的好多了 清晰明了 鼓励分给到 ### 5/5 — Wow! What an Advancement in Ball Machines. *2026-05-01, version 1.3.5* I bought this ball machine over the winter here in Colorado. E we had good weather so I played against the machine quite a bit. Outstanding product and key to me improving my game. ### 5/5 — Practice anytime *2026-04-30, version 1.3.5* This app motivates me to train consistently. I feel progress every day. ### 5/5 — Training content is very good *2026-04-26* Been using it for a while now—training plans are solid. Cleaner UI would make it perfect. ### 5/5 — Fine-tuned control *2026-04-26* The functional details are well done. Speed, spin, and placement can all be finely adjusted. ### 5/5 — Scientific training plan *2026-04-24, version 1.3.5* The training plan is very scientific. After using it consistently, I can clearly feel my ball control has improved. ### 5/5 — Easy to operate *2026-04-21* Simple to operate, stable connection, and a very smooth experience. Highly recommended to tennis enthusiasts! ### 5/5 — Replaces a practice partner *2026-04-21, version 1.3.5* Training efficiency has significantly improved after using it. The features are very professional — it can completely replace a hitting partner! ### 5/5 — Efficient training *2026-04-17, version 1.3.5* Very easy to use! You can train efficiently even alone. The shot routes and rhythms can all be freely set — so convenient! ### 5/5 — 很好用 *2026-04-17* app操作界面简单直接，很明确能联系的球，个人训练确实很不错 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*