Calculate your 1RM vs Efort
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculate your 1RM
This app helps you determine your one-repetition maximum (1RM) for various strength exercises. It uses several well-known formulas to calculate your maximum lift capacity, aiding in tracking training effectiveness and progress.
- 1RM calculation
- Multiple formulas (Epley, Lander, etc.)
- Track strength and power
- Monitor training effectiveness
- Supports iPhone, iPad, iPod
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Calculate your 1RM and percentages with the most known formulas. 1RM is the specific resistance that allows you to make only one repetition in an exercise. Determines your strength and power at a particular time. Knowing your 1RM will help you know how much weight you can lift for a given number of repetitions, it can also be used to check changes between measurements to know if the training is being effective or not. To calculate your 1RM you need to know how much weight you can lift and how many reps you can do in a particular exercise, it is advisable to perform the calculation with less than 12 repetitions, because from there the calculations become less reliable. Formulas used in this application: -Epley -Lander -O'Conner et al -Lombardi -Mayhew et al -Brzycki -Wathen
Efort
This application is designed for powerlifting athletes to enhance their performance. It offers custom program creation, performance insights, and optional integration with coaches.
- Custom program creation
- Performance insights
- Optional coach integration
- 100% free
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Efort: Powerlifting Training Efort is built for powerlifting athletes aiming to optimize performance—whether you work with a coach on Efort Coach or craft your own program. It’s 100% free. Key Features • Custom Programs • Performance Insights • Optional Coach Integration Take your powerlifting to the next level—download Efort and train like the best! Contact Us • Instagram: https://www.instagram.com/efortapp • Email: info@efortcoach.com
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Verdict
Calculate your 1RM and Efort both sit at 4.7 stars, but that hides the real split: 100% of Efort's written reviews are positive against 57% of Calculate your 1RM's. Efort also leads on in-app purchases (none vs 1). Calculate your 1RM's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price, rating, ratings volume and update cadence 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. Calculate your 1RM sells 1 one-off in-app purchase. Efort asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Calculate your 1RM against 4.8 for Efort. Both are backed by a comparable volume of ratings — 7 and 16 respectively. Written reviews are what separate them: 57% of Calculate your 1RM's written reviews are positive against 100% of Efort's.
Calculate your 1RM ships an update fortnightly, Efort every 10 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | Calculate your 1RM | Efort |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) | 4.8 (16 ratings) — better |
| Positive reviews | 57.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 | 16 — better |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | JosmanTek | EFORT SYSTEMS S.L. |
Customer experience
Calculate your 1RM
Efort
In-app purchases
Calculate your 1RM
- Remove Ads$1.99
Efort
No in-app purchases
Questions
Is Calculate your 1RM free?
Is Efort free?
Which has better reviews, Calculate your 1RM or Efort?
Do Calculate your 1RM or Efort have ads?
Which is updated more often, Calculate your 1RM or Efort?
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