# Liquid Calculator vs Elbow

The clearest difference is price: Elbow at Free against Liquid Calculator's $2.99. Elbow also leads on update cadence (every 4 months vs every 28 months). Liquid Calculator's advantage is in-app purchases (none vs 2) and chart position (#197 vs unranked). On review sentiment, ads, device support and iOS requirement there is nothing between them.

Elbow is free to download; Liquid Calculator costs $2.99 up front. Elbow sells 2 in-app purchases, starting at $4.99 per 7 days. Liquid Calculator asks for nothing beyond the download.

Liquid Calculator ships an update every 28 months, Elbow every 4 months. The most recent releases landed on September 4, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Liquid Calculator | Elbow |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/elbow-flat-pattern/id6471258565/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#197** | — |
| Size | 2 MB | 58 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Liquid Calculator

[App page](https://appshunter.io/ios/app/liquid-calculator/id1097092387)

**Currently charting:** #197 Top Paid · Productivity (US App Store)

Calculate the volume and weight of liquids within various container shapes at any given height. Supports over 100 liquid types and both metric and imperial systems.

**Highlights:** Volume and weight calculation, Multiple container shapes, Over 100 liquid types, Metric and Imperial support, Calculates by liquid height

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

**In-app purchases:** none


### Elbow

[App page](https://appshunter.io/ios/app/elbow-flat-pattern/id6471258565)

This tool simplifies the creation of accurate flat patterns for elbow fittings in sheet metal fabrication, HVAC, and piping. Input key parameters like angle and dimensions to instantly generate precise calculations for cutting and shaping materials, saving time and reducing errors.

**Highlights:** Calculate inner arc length, Determine elbow angle and cutting dimensions, Support custom angle inputs, Accurate flat pattern development, Quick and reliable results

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |


## Frequently asked questions

### Is Liquid Calculator free?

Liquid Calculator costs $2.99, with no in-app purchases.

### Is Elbow free?

Elbow is free to download, with in-app purchases available.

### Do Liquid Calculator or Elbow have ads?

Neither Liquid Calculator nor Elbow shows ads.

### Which is updated more often, Liquid Calculator or Elbow?

Liquid Calculator ships an update every 28 months, and Elbow every 4 months. Most recently, Liquid Calculator was updated on September 4, 2026 and Elbow on September 7, 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.*