OpenBook

1.3.5

OpenArcX

0.00

0 reviews

500+
Downloads

Free

Any exercise. Any unit. A focused workout log built for clear tracking.

500+ downloads

Download from Google Play iOS version

About OpenBook

OpenBook is a health & fitness app developed by OpenArcX.

Download Statistics

OpenBook has been downloaded 630 times. In the last 30 days, the app was downloaded 100 times.

User Ratings

The app has no ratings yet.

App Information

OpenBook is FREE to download. The APK download size is 73.86 MB. The latest version available is 1.3.5. The last update was on August 20, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play May 2026.

Description

OpenBook is a clean, pen-and-paper style workout log.

Built to be fast, simple, and flexible.

No sign-up, no credit card required — start right away with unlimited exercises and routines, full graph access, and CSV export for your own data.
Log up to 28 training days. Subscribe anytime for unlimited logging.

With OpenBook, you can:

Log any exercise. Track any unit or combination of units.
However you train — strength, calisthenics, bodybuilding, powerlifting, yoga, or functional fitness — OpenBook fits around it.

For example:
• Bench Press — weight × reps
• Zercher Hold — weight × time
• Sled Push — weight × distance
• Planche Lean — distance × time
• Dead Hang — time only
• Stretching — time only
• Arrowhead Lunge — breaths

Swipe between days
Move between days with a simple swipe to review past sessions.

See your training at a glance
View your days across a calendar or heatmap.

Plan or track anytime
Start with a saved routine or log as you go.

Time your rest. Add notes.
Set custom rest timers and add notes for each session.

View your progress with context
Track your progress over time, including intensity through % max or %1RM.

Compare and periodize
Track two metrics on one timeline to support structured, periodised training.

Edit or repeat sessions
Quickly update past logs or duplicate sessions with a single tap.

Download your data
Export your data at any time.

Back up your data to the cloud
Keep your data safe and accessible.

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More data about OpenBook

Price	Free to download
Total downloads	630
Recent downloads	100
Rating	No ratings
Ranking	Not ranked
Version	1.3.5
APK size	73.9 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the OpenBook app

OpenBook compared with similar apps

Common keywords of similar apps

Openbook Days Unit Built Simple Export Anytime Distance Swipe Past View Notes Time Log Data Track Training Weight Sessions Exercise Workout Start Unlimited Rest Add Progress

Keywords missing from this app

Gym Tracker Workouts Fitness Exercises Muscle Strength App Sets Routines Planner Features Bodybuilding Tracking Create Lifting Reps Plan Custom Set Results Goals Personal Routine Free Volume Bench Body Weights Stay Build Smart Ai Intuitive History Session

Downloads over time

Subscribe to see download velocity and history

OpenBook has been downloaded 630 times. Over the past 30 days, it has been downloaded 100 times.

Changelog of OpenBook

Show changelog

Developer information for OpenArcX

OpenArcX

support@openbook.fit

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Comments on OpenBook for Android

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Google Play Rankings for OpenBook

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Technologies used by OpenBook

20 permissions

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