# Sling calculation | Rigging vs Sling Load Calc

The clearest difference is in-app purchases: Sling calculation | Rigging at none against Sling Load Calc's 4. Sling calculation | Rigging also leads on update cadence (daily vs every 2 weeks) and iOS requirement (10.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Sling Load Calc sells 4 in-app purchases, starting at $1.99 per month. Sling calculation | Rigging asks for nothing beyond the download.

Sling calculation | Rigging ships an update daily, Sling Load Calc every 2 weeks. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Sling calculation | Rigging | Sling Load Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sling-load-calc/id6741319888/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 18 MB | 111 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daria Vasileva](https://appshunter.io/developer/1414873445) | [Prakash Solanki](https://appshunter.io/developer/1704788507) |

## What reviewers say

### Sling calculation | Rigging

[App page](https://appshunter.io/ios/app/sling-calculation-rigging/id1520484769)

This tool calculates sling angles and sizes based on user-defined parameters. It also supports reverse calculations, allowing adjustments to sling size or attachment point distance to achieve a desired angle.

**Highlights:** Calculate sling angles, Determine sling sizes, Reverse angle calculation, Adjust sling size, Modify attachment point distance

**In-app purchases:** none


### Sling Load Calc

[App page](https://appshunter.io/ios/app/sling-load-calc/id6741319888)

This app provides precise calculations for sling tension, length, and angle, essential for safe and efficient lifting operations. It's designed for professionals in heavy lifting industries, offering detailed reports and supporting various rigging configurations.

**Highlights:** Accurate sling tension calculations, Support for vertical and multi-sling loads, Easy-to-use interface, Detailed load and tension reports, Choice of measurement systems, Ensures safety standard compliance

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month plan | $1.99 | per month |
| Special 1 Year Plan | $9.99 | per year |
| Rigging Cal Pro | $14.99 | per year |
| Yearly Pro Plan | $14.99 | per year |


## Frequently asked questions

### Is Sling calculation | Rigging free?

Sling calculation | Rigging is free to download, with no in-app purchases.

### Is Sling Load Calc free?

Sling Load Calc is free to download, with in-app purchases available.

### Do Sling calculation | Rigging or Sling Load Calc have ads?

Neither Sling calculation | Rigging nor Sling Load Calc shows ads.

### Which is updated more often, Sling calculation | Rigging or Sling Load Calc?

Sling calculation | Rigging ships an update daily, and Sling Load Calc every 2 weeks. Most recently, Sling calculation | Rigging was updated on October 9, 2026 and Sling Load 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.*