# BURTcrane vs Sling Load Calc

The clearest difference is rating: Sling Load Calc at 5.0 against BURTcrane's 4.4. Sling Load Calc also leads on update cadence (every 2 weeks vs every 3 months). BURTcrane's advantage is in-app purchases (none vs 4). On price, ratings volume, 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. BURTcrane asks for nothing beyond the download.

Sling Load Calc holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

BURTcrane ships an update every 3 months, Sling Load Calc every 2 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BURTcrane | Sling Load Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/burtcrane/id1410439845/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sling-load-calc/id6741319888/reviews)** |
| Number of ratings | **5** | 4 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 73 MB | 111 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Scheib Corporation](https://appshunter.io/developer/1478780939) | [Prakash Solanki](https://appshunter.io/developer/1704788507) |

## What reviewers say

### BURTcrane

[App page](https://appshunter.io/ios/app/burtcrane/id1410439845)

Access a comprehensive database of crane and rigging specifications on the go. Quickly view inventory and crane details, and request a quote for your project directly through the application.

**Highlights:** Crane inventory viewing, Crane specification access, Load chart database, Request quotes within app, Anytime, anywhere access

**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 BURTcrane free?

BURTcrane 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.

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

Sling Load Calc is rated higher. BURTcrane averages 4.4 out of 5 from 5 ratings, while Sling Load Calc averages 5.0 from 4 ratings.

### Do BURTcrane or Sling Load Calc have ads?

Neither BURTcrane nor Sling Load Calc shows ads.

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

BURTcrane ships an update every 3 months, and Sling Load Calc every 2 weeks. Most recently, BURTcrane was updated on November 2, 2026 and Sling Load Calc on October 30, 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.*