# webcrane vs Sling Load Calc

The clearest difference is rating: Sling Load Calc at 5.0 against webcrane's 1.5. Sling Load Calc also leads on monetization model (freemium vs subscription) and update cadence (every 2 weeks vs every 74 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. webcrane sells 2 in-app purchases, starting at $0.99 per month and Sling Load Calc sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sling Load Calc holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

webcrane ships an update every 74 months, Sling Load Calc every 2 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | webcrane | Sling Load Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/webcrane/id577384583/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sling-load-calc/id6741319888/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | Every 74 months | **Every 2 weeks** |
| Monetization | Subscription | **Freemium** |
| Size | 16 MB | 111 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [andreas kohrt](https://appshunter.io/developer/546039884) | [Prakash Solanki](https://appshunter.io/developer/1704788507) |

## What reviewers say

### webcrane

[App page](https://appshunter.io/ios/app/webcrane/id577384583)

This app helps professionals plan and verify lifting jobs using a comprehensive database of load tables and boom configurations for over 70 mobile cranes. It offers lifting capacities up to 500 tons and includes lift simulation for confident job planning.

**Highlights:** Load Table lookup for 70+ mobile cranes, Boom configuration data from 5 manufacturers, Lifting capacities up to 500 tons, Lift simulation and visualization, Supports iPhone and iPad

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WebCrane Monthly | $0.99 | per month |
| WebCrane Yearly | $8.99 | per year |


### 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 webcrane free?

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

### Is Sling Load Calc free?

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

### Which has better reviews, webcrane or Sling Load Calc?

Sling Load Calc is rated higher. webcrane averages 1.5 out of 5 from 2 ratings, while Sling Load Calc averages 5.0 from 4 ratings.

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

webcrane ships an update every 74 months, and Sling Load Calc every 2 weeks. Most recently, webcrane was updated on October 3, 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.*