Workout Log - DayOne

Strength Programs. Lift Heavy.

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Track every lift. Run any strength program. Auto-calculate every weight. DayOne is the workout log built for serious lifters who want to focus on training, not spreadsheets. PERCENTAGE-BASED PROGRAMS, AUTOMATED Load Candito 6-Week Strength, Smolov, 5/3/1, or any percentage-based program and DayOne calculates every working weight for you — based on your 1RM. No manual calculations. No second-guessing. Just show up and lift. LOG YOUR WORKOUTS IN SECONDS - Track sets, reps, and weight for every exercise - Rest timer built in — never lose track between sets - Full exercise library with video demonstrations - Build custom workouts and programs from scratch TRACK YOUR PROGRESS - Personal records tracked automatically - 1RM calculator built in - Session history at a glance - See your strength trajectory over time BUILT FOR POWERLIFTERS AND BARBELL ATHLETES If you train with a barbell — whether you're running 5/3/1, Candito, Smolov, or building your own block — DayOne was designed for you. Set your 1RM once. DayOne handles the percentages for every session from there. Simple. Fast. Focused on what matters: getting stronger. Download DayOne and start your first session today.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Bug Fixes & Stability — Fixed ad-hoc workout titles, template workout starts, and a full production readiness pass for improved reliability

Version 1.3.1

The developer, Desmond Augier de Moussac, 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:

    • User Content

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Health & Fitness
    • Contact Info
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Desmond Augier de Moussac
Size
  • 45.9 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
16+
  • 16+
  • Learn More
  • Infrequent
    Contests

    Contains
    Unrestricted Web Access
    Health or Wellness Topics
In-App Purchases
Yes
  • DayOne Plus Lifetime $69.99
  • DayOne Plus Yearly $19.99
  • DayOne Plus Monthly $2.99
  • Learn More
Copyright
  • © 2026 Desmond de Moussac. All rights reserved.
  • Developer Website
  • Privacy Policy

    • More by Desmond Augier de Moussac