# 1RM Calculator vs WaterPulse

The clearest difference is in-app purchases: WaterPulse at none against 1RM Calculator's 3. 1RM Calculator's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

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

## The numbers

| Metric | 1RM Calculator | WaterPulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (126 ratings)](https://appshunter.io/ios/app/1rm-calculator/id1566775126/reviews)** | — |
| Number of ratings | **126** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Koshiishi](https://appshunter.io/developer/1566775128) | [Ibrahim Hakan Ugras](https://appshunter.io/developer/1862557328) |

## What reviewers say

### 1RM Calculator

[App page](https://appshunter.io/ios/app/1rm-calculator/id1566775126)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Rep Max Pro Monthly | $1.99 | per month |
| 1 Rep Max Pro Annual | $9.99 | per year |
| 1 Rep Max Pro Lifetime | $29.99 | one-time |


### WaterPulse

[App page](https://appshunter.io/ios/app/waterpulse-hydration-tracker/id6756740908)

**In-app purchases:** none


## Frequently asked questions

### Is 1RM Calculator free?

1RM Calculator is free to download, with in-app purchases available.

### Is WaterPulse free?

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

### Do 1RM Calculator or WaterPulse have ads?

Neither 1RM Calculator nor WaterPulse shows ads.

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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.*