HyNext
Hypertrophy workout planner
Only for iPhone
Free · In‑App Purchases
iPhone
HyNext. Built for muscle growth.
No more working out how much to add next time. HyNext looks at how many reps you actually did in every set and plans your next weights and reps.
Every recommendation says where it comes from: research, common coaching practice, or HyNext's own method.
The engine plans it for you. If you disagree, you can change it any time.
Free
・Generates a program from your training experience, body type and the look you want, your goal, available equipment and training days per week
・Log every set, exercise library with how-to guides, history and personal bests
・Optional sign-in and cloud backup, so your training log comes with you to a new phone
Full version (all features free for the first 14 days, counted from the first time you open the app, no payment needed)
・Decides after every workout whether to add weight, hold or drop
・Gives you a little more rest when your reps drop too much between sets
・Explains why you are stuck and what to do next, not just "keep going"
・Adds sets in small steps during a muscle-gain phase, and watches for two weeks after each increase before asking again; suggests a deload when recovery can't keep up
・Make up or skip missed sessions
・Weekly reports, a yearly review, body weight and per-exercise trends
・The evidence and studies behind every recommendation
No ads.
HyNext full version is an auto-renewing subscription:
・Monthly NT$150 / month
・Yearly NT$1,000 / year
・These are early-bird prices; the actual price and currency are shown in the App Store
・Payment is charged to your Apple ID account when you confirm the purchase
・The subscription renews automatically unless cancelled before the end of the current period; you can manage or cancel it any time in your App Store account settings
Privacy Policy:
https://hynext.space-yuan.com/docs/legal/en/privacy-policy.md
Terms of Service:
https://hynext.space-yuan.com/docs/legal/en/terms.md
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New English version: choose Traditional Chinese or English on first launch or on the Account page.
A shorter, clearer beginner tour.
Effort check after each set is now "Too easy / Just right / Almost failed", compared with what the screen asked for, so there's nothing to calculate.
New: send your training results to HyNext anonymously (never public) to help tune its recommendations. Voluntary and off by default.
Simpler weight increases: hit the target this session and the weight goes up.
Plus many smaller fixes.
The developer, YUYUAN LIU, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- YUYUAN LIU
- Size
- 43.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
- Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- 完整版 · 年 $29.99
- 完整版 · 月 $4.99
- Copyright
- © 2026 Yuyuan Liu