# Sling Load Calc vs Rigging App

The clearest difference is update cadence: Sling Load Calc at every 2 weeks against Rigging App's every 2 months. On price, ads, in-app purchases 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 and Rigging App sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Sling Load Calc ships an update every 2 weeks, Rigging App every 2 months. The most recent releases landed on August 31, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Sling Load Calc | Rigging App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sling-load-calc/id6741319888/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Freemium | — |
| Size | 111 MB | 16 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Prakash Solanki](https://appshunter.io/developer/1704788507) | [Marrero Publishing, Inc.](https://appshunter.io/developer/641799557) |

## What reviewers say

### 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 |


### Rigging App

[App page](https://appshunter.io/ios/app/rigging-app/id6747832259)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription $10 | $9.99 | per month |
| Annual Subscription $60 | $59.99 | per year |
| Full Access Monthly Pass | $9.99 | one-time |


## Frequently asked questions

### Is Sling Load Calc free?

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

### Is Rigging App free?

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

### Do Sling Load Calc or Rigging App have ads?

Neither Sling Load Calc nor Rigging App shows ads.

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

Sling Load Calc ships an update every 2 weeks, and Rigging App every 2 months. Most recently, Sling Load Calc was updated on August 31, 2026 and Rigging App on September 8, 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.*