Building in public
Now: launching with
Features shipping at v1.0 launch.
Core workout logging
- •Log sets, reps, and weight with smart defaults
- •65+ exercises covering all muscle groups
- •Quick weight entry with +/- buttons
- •Exercise notes for form cues
Rest timer
- •Auto-starts after completing a set
- •Haptic alerts at 30s, 10s, and completion
- •Extend or reduce time on the fly
- •Works in background with notifications
PR detection
- •Tracks personal records for every rep range
- •Celebration when you hit a new PR
- •PR history per exercise
- •Exercise history showing recent sessions
AI Coach feedback
- •Post-workout reflection based on your rating
- •Considers your workout trend (last 5 sessions)
- •Contextual encouragement and insights
- •Works offline with smart fallbacks
Progression suggestions
- •Specific weight/rep recommendations for next time
- •Double progression logic (reps first, then weight)
- •Deload suggestions when needed
- •Accept, adjust, or skip any suggestion
Workout templates
- •Save any workout as a template
- •Start workouts from templates
- •Create templates from scratch
- •Edit and manage your template library
Apple Health
- •Write completed workouts to Health
- •Read sleep duration for context
- •Read HRV for recovery insights
- •AI uses health data for smarter feedback
Share workouts
- •Generate aesthetic share cards
- •Instagram Story (9:16), Post (1:1), Twitter (16:9)
- •Shows workout stats, PRs achieved, rating
- •Caliber branding included
Settings and personalization
- •kg or lbs preference (converts throughout app)
- •Custom rest timer defaults
- •Toggle progression suggestions
- •Unit preferences apply everywhere
Account and backup
- •Sign in with Apple
- •iCloud backup for your data
- •Restore data on new devices
- •Works offline, syncs when connected
Next: coming soon
Features planned for v1.1 and v1.2 updates.
Training program library
Browse curated workout programs from proven sources. One tap to start. Programs include:
- •Minimalist aesthetic (3 days, compound-focused)
- •Strength aesthetic split (upper/lower)
- •Ultra minimalist (2-3 days, one working set)
- •Bodyweight fundamentals (no equipment)
Active program tracking
- •Track progress through your program
- •See current week and completed workouts
- •Next workout suggestion on home screen
- •Automatic workout rotation (A/B, weekly)
Custom exercise creation
- •Add exercises not in the library
- •Set muscle groups and equipment
- •Custom exercises appear in picker
- •Use in templates and workouts
Later: the vision
Where we're heading. These are bigger features that shape Caliber's long-term direction.
Calendar-aware scheduling
Connect your calendar. Caliber finds time slots that work for your schedule:
- •Identifies gaps long enough for workouts
- •Avoids suggesting before important meetings
- •Learns your preferences over time
- •Morning notification with today's best time
Pre-workout check-in
Quick check-in before you start:
- •"How do you feel?" (energy rating)
- •Pulls latest sleep and HRV data
- •Combines subjective + objective data
- •Recommendation: push it, normal session, take it easy, or rest
Weekly AI summary
Richer analysis every Sunday:
- •Workouts completed vs planned
- •Average rating trend with interpretation
- •Volume change vs last week
- •Specific insights and recommendations
- •Local notification when ready
Live Activity timer
Rest timer on your lock screen:
- •See countdown without unlocking
- •Works while using other apps
- •Tap to open Caliber
- •Beautiful, minimal design
Accessibility polish
Full support for everyone:
- •VoiceOver labels throughout
- •Reduced motion support
- •Proper focus order
- •Minimum tap targets
How we prioritize
We build based on:
💬
User feedback
What founding members ask for most
🎯
Core value
Features that make Caliber smarter, not just bigger
✨
Quality over speed
Ship it right, not just ship it fast
Have a feature request? Email us at hello@usecaliber.app or message on Twitter/X.
Version history
v1.0(current)
- •Core workout logging
- •Rest timer with haptics
- •PR detection and celebration
- •AI Coach feedback
- •Progression suggestions
- •Workout templates
- •Apple Health integration
- •Share to social media
- •Sign in with Apple
Join the founding members
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