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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.

On-device VisionAnalyze with AIPrivate by design

Capture in seconds

Front camera or import, countdown delay, and a hard 30-second cap.

On-device or AI coach

Pose tracking on your phone, or Analyze with AI for richer notes — you choose.

Progress you can replay

Keep analysed sets, jump to timestamps, and compare sessions over time.

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 — weekly sets, form focus, and recent sessions
Record the set. Fix the form.
Exercise library browsed by muscle group
Browse every lift you train
Exercise detail with Analyze action
Know the move before you lift
Clip trimmer with on-device and AI analyze options
Trim, then analyze on device or with AI
Analysis progress while coaching notes are prepared
Coach notes in seconds
AI result with reps, match percent, and coach notes
Reps, match %, and what to fix
Pose overlay highlighting a form issue 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.

Every section here maps to a real workflow inside TrAIner — no marketing filler.

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 app 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
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 App Store settings. Prices appear in the app at purchase time.

Contact

Talk form, features, or feedback.

TrAIner is built independently. Reach out for partnerships, press, or product feedback.

No accounts required

Workouts and videos stay on device. Optional Health profile data is read only when you enable it.