The One Rep Max vs Simple One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The One Rep Max
Estimate your maximum weightlifting capacity with this tool. Track your progress and safely push your limits. Ideal for strength training enthusiasts.
- One Rep Max estimation
- Progress charting
- Safe training guidance
- Weightlifting focus
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The One Rep Max calculator uses a little previous knowledge to give you an approximation of what amount of weight you could lift one time. Use this value to push yourself while remaining safe, and chart your progress along the way.
Simple One
This app helps you accurately determine your one-rep max (1RM) using multiple proven formulas. It provides reliable estimates to help you choose the right weights for your training, ensuring safer and more effective strength progression.
- Accurate one-rep max estimates
- Multiple proven calculation formulas
- Determine training weights
- Fast and simple interface
- Distraction-free design
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Stop guessing your max. Train with confidence. Simple One Rep Max Calculator helps you understand how strong you really are — so every workout has a purpose. By calculating your one-rep max using multiple proven formulas, you get realistic numbers you can trust, not just a single estimate. Know your limits, choose the right weights, and progress safely — whether you’re pushing for new PRs or building strength over time. Why you’ll love it • Clear and reliable max lift estimates • Multiple formulas for better confidence • Training weights at the right intensity • Fast, simple, and distraction-free Less guessing. Better progress.
Screenshots
Verdict
The clearest difference is review sentiment: The One Rep Max at 100% against Simple One's 50%. The One Rep Max also leads on price (Free vs $0.99) and rating (5.0 vs 4.5). On ratings volume, ads and in-app purchases 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
The One Rep Max is free to download; Simple One costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
The One Rep Max holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of The One Rep Max's written reviews are positive against 50% of Simple One's.
The One Rep Max ships an update every 10 days, Simple One every 13 months. Both last shipped on October 20, 2026.
| Parameter | The One Rep Max | Simple One |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 10 days — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 29 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | Jonah Witcig | Above AS |
Customer experience
The One Rep Max
Simple One
In-app purchases
The One Rep Max
No in-app purchases
Simple One
No in-app purchases
Questions
Is The One Rep Max free?
Is Simple One free?
Which has better reviews, The One Rep Max or Simple One?
Do The One Rep Max or Simple One have ads?
Which is updated more often, The One Rep Max or Simple One?
Other comparisons
