Trinio

TrAIner

Record the set. Fix the form.

TrAIner is a focused form coach for iPhone. Record up to 30 seconds, trim the working set, and get on-device pose analysis or optional Analyze with AI — with clear positives, issues, and pose overlays. Your video stays on your phone unless you choose to send a short clip for AI.

Download on the App Store
On-device Vision Analyze with AI Private by design
TrAIner home with weekly sets
Exercise library by muscle group
Exercise detail with Analyze
Clip trimmer
Analysis in progress
AI result with reps and match percent
Pose overlay on video

Screens

From the gym floor to coach notes.

Record, trim, analyse, and review — the same flow you will see in the App Store listing.

TrAIner home with weekly sets
Record the set. Fix the form.
Exercise library by muscle group
Browse every lift you train
Exercise detail with Analyze
Know the move before you lift
Clip trimmer
Trim, then analyze
Analysis in progress
Coach notes in seconds
AI result with reps and match percent
Reps, match %, and what to fix
Pose overlay on video
See the issue on your form

Flow

Three steps, built for the gym floor.

Home, trAIn, and Settings stay out of the way so recording and feedback stay fast.

trAIn

Record or import a clip, scrub the filmstrip, and lock a 30-second window.

  • Configurable countdown
  • Trim before analyse
  • On-device or Analyze with AI

Analyse

On-device pose tracking classifies the exercise and scores form cues — or send pose data / a short clip for AI coaching.

  • Joint angles and timestamps
  • Positives and issues to fix
  • Pose overlay on the clip

Home

Revisit recent sets, browse the library, and track weekly form focus.

  • Local recording library
  • Weekly sets and issues
  • Coverage across 139 exercises

Features

Built from the app itself.

Capture and trim

Selfie camera with a recording timer, Photos import, and a filmstrip so you analyse only the working set.

Form feedback

Depth, torso lean, elbow path, and more — written as clear coaching notes you can jump to in the clip.

Exercise library

Browse by muscle group, open how-to guidance, and confirm the move after recognition.

Private by design

On-device analysis never uploads video. Analyze with AI only sends what you choose — pose data or a 10-second clip.

History and progress

Keep analysed sets on device, review match %, and track issues flagged across the week.

iPhone

Native iOS with on-device Vision. Available on the App Store.

Plans

Free to start. Pro when you want more AI.

On-device analysis stays available. Analyze with AI is metered by plan — weekly, monthly, or yearly.

Free

Get started

On-device analyse, exercise library, history, and a small lifetime allowance of Analyze with AI.

  • On-device Vision analysis
  • 4 lifetime Analyze with AI runs
  • Local history on your phone
TrAIner Pro

Period AI coach

Everything in Free, plus Analyze with AI granted as a period total from the daily rate — 4 pose or 2 video analyses per day.

  • 28 pose / 14 video analyses per week
  • 120 pose / 60 video analyses per month
  • 1,460 pose / 730 video analyses per year
Pro Unlimited

No AI cap

Same coaching tools with unlimited Analyze with AI — for athletes who train every day.

  • Unlimited Analyze with AI
  • Pose or video payload modes
  • Weekly, monthly, or yearly

Subscriptions auto-renew until cancelled in store settings. Prices appear in the app at purchase time.

Contact

Talk form, features, or feedback.

TrAIner is built independently at Trinio. No accounts required — workouts and videos stay on device. Optional Health profile data is read only when you enable it.

Privacy policy · Terms of use

Platform

On the App Store

TrAIner is available for iPhone.