1RM Max Calculator vs Workout Notebook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1RM Max Calculator
Instantly calculate your one-rep max (1RM) for bench press, squat, and deadlift using 7 scientific formulas. Track your progress with intuitive charts and calendar records. Ideal for athletes and lifters aiming for more scientific and effective training.
- 7 scientific 1RM calculation formulas
- Supports bench press, squat, and deadlift
- Progress tracking and data visualization
- Calendar for daily record management
- One-tap data saving
- Offline functionality
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Accurate 1RM calculation using 7 scientific formulas Calculate your maximum weight for bench press, squat, and deadlift instantly! Using the average of 7 different proven formulas (Epley, Brzycki, Lander, and more) trusted by professional athletes to determine the most reliable 1RM. [Why choose this app?] - High-precision 1RM calculation using multiple formulas - Simple and intuitive interface - Comprehensive progress tracking - Data visualization for growth monitoring [Key Features] - Support for 3 major lifts (bench press, squat, deadlift) - 7 scientific calculation formulas for precise results - Calendar function for daily record management - Graph display for progress visualization - One-tap data saving - Full offline functionality [Perfect for] - Athletes wanting to track training effectiveness - Lifters needing accurate 1RM calculations - Anyone planning structured training programs - Fitness enthusiasts tracking their progress Make your training more scientific and effective. Take your lifting to the next level! Trusted by over 7,000 users worldwide.
Workout Notebook
Record your workouts and track progress with personalized training menus and detailed body metrics. Visualize your fitness journey with customizable graphs and add notes for comprehensive health tracking.
- Personalized training menu design
- Save and reuse menu templates
- Workout calendar and history
- Body record tracking (weight, fat %, calories)
- Dual graph visualization of progress
- Memos for detailed training and lifestyle notes
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This app can record your training and turn its analyses into graphs, making it easier for you to get in the shape you want to be in. 【What this app can do】 - Designing your training menu Get a personalized training menu from the app based on your preferences. In addition, you can adjust the menu however you like, whenever you want afterwards. - Saving templates from previous menu designs The app saves previous menus as templates, so you can always go back to them later and make new menus with them. - Calendar The app’s calendar shows you exactly when you have done training. - Body records The app records your weight, body fat percentage, and calorie intake. You may also add to the app anything else you might want to keep track of. - Graphs The app turns your training records into graphs. The app allows you two view two graphs at once. With the graphs, you may, for instance, compare how your body has changed against the kinds of training you have done. - Memos You can write your own memos to record your training, the kind of food you eat, sleep patterns, physical conditions, etc.
Screenshots
Verdict
The clearest difference is review sentiment: 1RM Max Calculator at 70% against Workout Notebook's 0%. 1RM Max Calculator also leads on ads (none vs shown) and ratings volume (22 vs 5). Workout Notebook's advantage is rating (4.8 vs 4.2) and update cadence (every 2 weeks vs every 6 weeks). On price, in-app purchases and monetization model 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. 1RM Max Calculator sells 3 one-off in-app purchases and Workout Notebook sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Workout Notebook holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 22 and 5 respectively. Written reviews complicate that: 70% of 1RM Max Calculator's written reviews are positive against 0% of Workout Notebook's, so the app with the better star average is not the one people write more warmly about.
1RM Max Calculator ships an update every 6 weeks, Workout Notebook every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | 1RM Max Calculator | Workout Notebook |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (22 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 70.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 22 — better | 5 |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazumasa Shimomura | Tetsuma Yaguchi |
Customer experience
1RM Max Calculator
Workout Notebook
In-app purchases
1RM Max Calculator
- Calculator for deadlift$2.99
- Calculator for squat$2.99
- Ad Blocker$2.99
Workout Notebook
- Premium Services (Monthly)$1.991 Month
- Premium Service (Half-year)$5.996 Months
- Premium Service (1-year)$9.991 Year
Questions
Is 1RM Max Calculator free?
Is Workout Notebook free?
Which has better reviews, 1RM Max Calculator or Workout Notebook?
Do 1RM Max Calculator or Workout Notebook have ads?
Which is updated more often, 1RM Max Calculator or Workout Notebook?
Other comparisons
