# ACFT Calculator vs 1 Rep Max Calc

The clearest difference is update cadence: 1 Rep Max Calc at every 5 days against ACFT Calculator's every 3 months. ACFT Calculator's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ACFT Calculator ships an update every 3 months, 1 Rep Max Calc every 5 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | ACFT Calculator | 1 Rep Max Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (11 ratings)](https://appshunter.io/ios/app/1-rep-max-calc/id6449542297/reviews)** |
| Number of ratings | — | **11** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 67 MB | 6 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erdem Kara](https://appshunter.io/developer/1015700209) | [Will Stankus](https://appshunter.io/developer/1451105607) |

## What reviewers say

### ACFT Calculator

[App page](https://appshunter.io/ios/app/acft-calculator-scorechart/id6447702010)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1 Rep Max Calc

[App page](https://appshunter.io/ios/app/1-rep-max-calc/id6449542297)

Calculate your one rep max (1RM) and explore potential rep maxes at various intensities. Supports both pounds and kilograms, with an intuitive interface and offline functionality for seamless strength training tracking.

**Highlights:** Accurate one rep max calculation, Comprehensive rep maxes (95%-70%), Seamless unit conversion (lbs/kg), User-friendly interface, Offline support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ACFT Calculator free?

ACFT Calculator is free to download, with no in-app purchases.

### Is 1 Rep Max Calc free?

1 Rep Max Calc is free to download, with no in-app purchases.

### Do ACFT Calculator or 1 Rep Max Calc have ads?

Neither ACFT Calculator nor 1 Rep Max Calc shows ads.

### Which is updated more often, ACFT Calculator or 1 Rep Max Calc?

ACFT Calculator ships an update every 3 months, and 1 Rep Max Calc every 5 days. Most recently, ACFT Calculator was updated on October 3, 2026 and 1 Rep Max Calc on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*