Comparison

1RM Calculator vs Level Up

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

1RM Calculator

Easily calculate your one-rep max (1RM) strength with this app. It supports RPE input and allows you to estimate rep maxes based on your 1RM. Track your progress by saving your 1RM history for different exercises.

Highlights
  • 1RM calculation with RPE
  • Rep max estimation
  • Save 1RM history
  • Customizable exercises
  • Dark theme
Features
Read full description

Estimate your one rep max (1RM) from any set. Enter the weight and reps you lifted, add RPE if you track it, and get your estimated max in seconds. FEATURES - 1RM calculator with optional RPE: reps left in the tank are counted, so 10 reps at RPE 7 is treated like a 13-rep max - Transparent formulas: your estimate is the average of Epley, Brzycki (up to 12 reps), Wathan, and Mayhew - Estimated rep maxes from 2 to 12 reps, each shown as a percentage of your 1RM, for planning working sets - Save results to your history by exercise, including your own custom exercises - Edit or backdate saved records - Export your history as CSV - kg or lbs, light or dark theme - 9 languages - No account needed: your records stay on your device PRO - 1RM progress chart for each exercise - Rep max table with your best recorded set for each rep count - No ads Pro is available as a monthly or yearly subscription, or as a one-time lifetime purchase. Subscriptions renew automatically until canceled in your store account settings. Your 1RM is an estimate, not a tested max. Estimates are most reliable at lower reps. Terms: https://1rm.workoutwise.app/legal/terms/ Privacy Policy: https://1rm.workoutwise.app/legal/privacy-policy/

About

Level Up

This platform connects fitness centers with their members, enabling personalized training, real-time progress tracking, and automated check-ins. It helps centers acquire new clients and engage existing ones through custom challenges and routine creation.

Highlights
  • Client acquisition and retention tools
  • Customizable goals and challenges
  • Real-time progress tracking with wearables
  • Personalized routine creation and viewing
  • Automated check-ins
  • Integration with Apple Health
Read full description

Level Up es una plataforma web y móvil diseñada para los diferentes centros de entrenamiento ya sean de tipo gimnasios, crossfits, etc. que nos ayudará a conseguir nuevos clientes, así como activar y retener a los actuales. Esto lo logramos mediante la creación de objetivos y retos que se pueden medir utilizando bandas y relojes inteligentes, todo en tiempo real. Ayudamos a nuestros clientes a que creen experiencias únicas en sus usuarios gracias a que la plataforma apoya en el monitoreo, seguimiento, que los entrenadores realizan sobre la plataforma que cuenta con herramientas para la creación de rutinas personalizadas, las cuales se pueden visualizar desde el teléfono móvil de los usuarios. Después de esto podremos hacer preguntas sobre su entrenamiento, instalaciones, entrenador, etc.; que pueden ser personalizadas, dando como resultado un reporte con las áreas de oportunidad, para crear un plan de mejoras. Te damos la libertad de crear tus propias rutinas y agenderlas de manera que lleves tu rutinas a un nuevo nivel de manera individual; y si perteneces a algún fitness center, te ofrecemos la posibilidad de estar en contacto directo con tu entrenador de una manera más personalizada, así como un pase para realizar tus "check in" de forma automática con tan solo estar cerca de tu fitness center, no más códigos de acceso y medidas anticuadas de ingreso. ¿Cuentas con Apple Watch? Sincroniza tus datos con la App Salud de iOS para guardar los resultados de tus rutinas o wods y así tengas información más precisa. Solo acepta los permisos al ingresar a la App para una mejor experiencia. Esta aplicación es sólo para miembros de Centros Crossfit/Fitness con servicio de Level Up.

Screenshots

1RM Calculator4 screens
Level Up3 screens

Verdict

The call

The clearest difference is review sentiment: 1RM Calculator at 100% against Level Up's 22%. 1RM Calculator also leads on rating (4.8 vs 1.4) and ratings volume (126 vs 31). Level Up's advantage is in-app purchases (none vs 3) and update cadence (every 2 months vs every 4 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 1RM Calculator sells 3 in-app purchases, starting at $1.99 per month. Level Up asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

1RM Calculator holds the better App Store score, 4.8 against 1.4. Both are backed by a comparable volume of ratings — 126 and 31 respectively. Written reviews point the same way: 100% of 1RM Calculator's written reviews are positive against 22% of Level Up's.

UpkeepUpdate frequency

1RM Calculator ships an update every 4 months, Level Up every 2 months. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

Scorecard7 real differences · 3 level
1RM Calculator versus Level Up: the parameters behind the verdict, then further details
Parameter1RM CalculatorLevel Up
PriceFreeFree
Rating4.8 (126 ratings) — better1.4 (31 ratings)
Positive reviews100.0% of reviews — better22.2% of reviews
Number of ratings126 — better31
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.012.1 — better
Further details — not scored
Size28 MB97 MB
Age rating4+4+
DeveloperYuri KoshiishiEdgar Barba

Customer experience

1RM Calculator

All ratings116 ratings
Positive99.1%
Neutral0.0%
Negative0.9%
Written reviews18 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Level Up

All ratings31 ratings
Positive6.5%
Neutral3.2%
Negative90.3%
Written reviews9 reviews
Positive22.2%
Neutral0.0%
Negative77.8%

In-app purchases

3 purchases

1RM Calculator

Subscriptions2
  • 1 Rep Max Pro Monthly$1.991 Month
  • 1 Rep Max Pro Annual$9.991 Year
One-time1
  • 1 Rep Max Pro Lifetime$29.99
None

Level Up

No in-app purchases

Questions

Is 1RM Calculator free?
1RM Calculator is free to download, with in-app purchases available.
Is Level Up free?
Level Up is free to download, with no in-app purchases.
Which has better reviews, 1RM Calculator or Level Up?
1RM Calculator is rated higher. 1RM Calculator averages 4.8 out of 5 from 126 ratings, while Level Up averages 1.4 from 31 ratings.
Do 1RM Calculator or Level Up have ads?
Neither 1RM Calculator nor Level Up shows ads.
Which is updated more often, 1RM Calculator or Level Up?
1RM Calculator ships an update every 4 months, and Level Up every 2 months. Most recently, 1RM Calculator was updated on October 25, 2026 and Level Up on October 21, 2026.

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