OpenBook vs Slate Workout Tracker Gym Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenBook
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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 periodise 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. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ OpenBook Terms of Service: https://openbook.fit/terms Privacy Policy: https://openbook.fit/privacy
Slate Workout Tracker Gym Log
This app helps lifters track workouts with speed and precision. It features AI-generated plans, real-time muscle recovery insights, and hands-free logging. Visualize your training week and understand your strength relative to others.
- Real-time muscle recovery tracking
- AI-generated workouts based on exercise science
- Hands-free voice workout building
- Fastest set logging with swipe gestures
- Comprehensive tracking of various metrics
- DOTS strength standards comparison
- Exercise photo attachments
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See your muscles recover. Train with purpose. Log at full speed. Slate is the fastest workout tracker built for lifters who obsess over progress. Other apps make you tap through menus to log a single set. Slate keeps you in the flow: swipe to add sets, rate RPE without leaving the keyboard, and move across exercises without a single tap breaking your rhythm. Real-time muscle recovery. A Coach that actually knows your training. Progress photos that prove it. Everything else is just a log. SWITCHING FROM HEVY OR STRONG? Bring your entire history with you. Slate's fuzzy-matching importer maps your exercises automatically and preserves every set. No data loss. No starting over. Lifters keep switching for a reason: over 70,000 sets logged and a 5.0 rating. THE FASTEST SET LOGGING IN ANY TRACKER Swipe right to insert a set with auto-fill. Swipe left to delete. Rate RPE inline the moment a set ends. No popups, no extra screens. The smart keyboard bar moves you across exercises without the keyboard ever closing. Check off sets and rate RPE right from the lock screen Live Activity, without unlocking your phone. A plate calculator that loads the bar with the exact plates your gym has. Stop fighting your app between sets. MUSCLE RECOVERY TRACKING Slate's recovery engine shows which muscles are fresh, which are recovering, and which are overloaded. The strain map visualizes your whole training week with per-muscle breakdowns, and Weekly Rings show coverage, intensity, and program progress at a glance. Your muscles don't lie. A COACH THAT KNOWS YOUR LIFTS Ask "How is my squat?" and get an answer built from your actual training: your best sets, your recent pattern, and what to work on next. Coach builds programs, edits workouts on the fly, and plans around your goals, your training history, and your injuries. AI WORKOUTS BUILT ON EXERCISE SCIENCE Seeded with EMG data and trained on strength science principles. Tell it "45 minutes, push day, dumbbells only" and get a single workout or a full 8-week periodized program. Programs remember where you left off, even after restarting the app. No black-box guessing. NEW: A MARKETPLACE OF PROGRAMS Browse featured training programs and filter by days per week, experience, goal, and equipment. One tap shows only the plans that work with the gear you own. Preview every day of a program before you start it. PROGRESS PHOTOS DONE RIGHT Private progress photos with front, side, and back poses. Compare any two days side by side and drag to flip through time. Photos pair with your body weight automatically and show up right on your weight chart. Import your old photos and Slate dates them for you. BUILD WORKOUTS HANDS-FREE Dictate exercises and structure like "Build me a 45-minute chest and triceps workout." Tap to record or hold to talk. Batch parse multiple sets. No typing, no fumbling. SEE YOUR REAL STRENGTH DOTS score and bell curve show your strength relative to lifters your age, weight, and gender. Personal records ranked by estimated 1RM. Lift smarter, not just harder. TRACK EVERYTHING Weight and reps, time, distance, bodyweight, assisted and weighted bodyweight. 500+ exercise library. Supersets, drop sets, rest-pause, myo-reps. Body measurements. Attach form and setup photos to any exercise. Interval timers: Tabata, HIIT, EMOM. Five timer sounds, from Fight Bell to Crescendo. SHARE AND TRAIN TOGETHER Share cards with your stats over your own photo, plus a scannable import code so a friend can pull your exact workout into their Slate. Send full programs with a link. APPLE HEALTH Workouts and body weight sync automatically with Apple Health. Log once, see it everywhere. Terms of Use: https://slatefitness.app/terms Privacy Policy: https://slatefitness.app/privacy
Screenshots
Verdict
The clearest difference is ads: Slate Workout Tracker Gym Log at none against OpenBook's shown. OpenBook's advantage is iOS requirement (15.5 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OpenBook sells 2 in-app purchases, starting at $3.99 per month and Slate Workout Tracker Gym Log sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
OpenBook ships an update every 2 weeks, Slate Workout Tracker Gym Log every 10 days. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.
| Parameter | OpenBook | Slate Workout Tracker Gym Log |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (14 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 18.0 |
| Further details — not scored | ||
| Size | 55 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | OpenArcX Pty Ltd | Patrick Imhof |
In-app purchases
OpenBook
- OpenBook Full Access - Monthly$3.991 Month
- OpenBook Full Access - Yearly$29.991 Year
Slate Workout Tracker Gym Log
- Slate Pro: Analytics, AI & Recovery7 Days trial$4.991 Month
- Pro + Coach Monthly7 Days trial$14.991 Month
- Slate Pro: Analytics, AI & Recovery7 Days trial$29.991 Year
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- Pro + Coach Yearly7 Days trial$99.991 Year
- Slate Pro: Analytics, AI & Recovery$49.99
- Core - Lifetime$74.99
Questions
Is OpenBook free?
Is Slate Workout Tracker Gym Log free?
Do OpenBook or Slate Workout Tracker Gym Log have ads?
Which is updated more often, OpenBook or Slate Workout Tracker Gym Log?
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