Replex
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Release notes

What's new

Every Replex update, newest first.

Replex 5.0

October 2026 · Version 5.0

Replex 5.0 is a complete rebuild of how the app looks and feels — Chalk & Iron: a graphite canvas, one bright accent, scoreboard numbers and colours that tell you which muscles a session trains. The Apple Watch app is redesigned too, and the AI Coach plans whole programs.

A new design

  • Redesigned Today, Plan, Progress, Coach and Profile, with muscle-family colours and big, glanceable numbers
  • Illustrated exercises and refreshed muscle maps
  • Appearance setting (System, Light or Dark) and three accents — Volt, Blue and Pink — with matching app icons
  • A new launch screen and onboarding

Apple Watch

  • A redesigned Watch app: set weight and reps with the Digital Crown and tap LOG
  • Rest countdown ring with −15 / +15 and Skip, plus live heart rate, zones and calories
  • Your accent colour follows you to the Watch

Logging and progress

  • Bodyweight exercises show as “BW” or “BW + 10 kg”, and count in your volume using your body weight from Apple Health or one you enter
  • Keep the screen on during workouts (Profile › Preferences)
  • Clearer Progress charts and records, with numbers in your language's digits

AI Coach (Pro)

  • Plans multi-week programs that repeat weekly, starting on the date you choose
  • Moves and replaces sessions in one confirmation, and checks your calendar for clashes
  • Picks exercises for your equipment and the muscles you want to train
  • Never adds sessions in the past or duplicates ones already on your calendar

Everywhere

  • Better Arabic and Hebrew support: mirrored arrows and layouts, consistent digits
  • Many reliability fixes for Watch sync and launch

Replex 4.1

September 2026 · Version 4.1

Replex 4.1 is about faster logging and a clearer picture of where you train — plus outdoor workout polish, better sharing, and analytics refinements.

Training map

  • Open All Workouts to see runs, rides, and gym sessions on a map
  • Pins cluster as you zoom out, then separate by activity as you zoom in

Faster logging

  • Edit sets inline on iPhone during a workout
  • One-tap set logging on Apple Watch
  • Smoother planning flow when building your week

Outdoor workouts & Health

  • Full-screen route details for imported outdoor activities
  • Dates and times respect the timezone where you recorded the workout
  • Easier period-scoped Health workout re-import in Settings

Share, Coach & polish

  • Redesigned workout share cards and share composer
  • Cleaner Coach empty states and a refreshed About screen
  • Snappier cardio chart scrubbing and a clearer heart-rate selection line
  • All Workouts stays responsive even with a large training history

Replex 4.0

August 2026 · Version 4.0.0

Replex 4.0 is built around AI Coach — a Pro feature that reads your real workouts, templates, and calendar before it answers. It proposes changes; you decide what to save.

AI Coach (Pro)

  • Chat naturally about your training history, goals, and schedule
  • Create and edit workout templates from conversation
  • Schedule strength sessions and future cardio in one plan
  • Preview every proposal — calendar events and template edits apply only after you tap Apply
  • Ask about a specific workout or imported run from its detail screen
  • Conversation continuity with connection-loss recovery

AI Coach requires a Replex Pro subscription. See our Privacy Policy for how coach data is processed.

Train on iPhone

  • Record strength workouts on iPhone when Apple Watch isn’t available
  • Live Activity shows your session on the Lock Screen
  • Siri — start a workout with your voice

Analytics & Health

  • Running and walking distance charts tied to your analytics period
  • Interactive heart rate chart on finished workouts
  • Import outdoor activities from Apple Health with route maps
  • Notifications when new outdoor runs and rides are imported

Apple Watch & reliability

  • Cleaner metrics and rest timer on small Watch displays
  • More reliable Watch launch and iPhone mirror sync
  • Live Activity and workout UI polish
  • Faster app launch and HealthKit import performance

Calendar & planning

  • Schedule future cardio alongside strength templates
  • Calendar list icons for strength and cardio sessions
  • Workout sharing cards and planning improvements

Replex — Get stronger every week

The strength training tracker for iPhone and Apple Watch.

Download on the App Store