webcrane vs Sling Load Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
webcrane
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.
- 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
Read full descriptionHide full description
WebCrane is a professional crane load calculator for mobile cranes. Plan and verify lifting jobs with confidence using a database of Load Tables and Boom configurations for over 70 cranes from 5 different manufacturers, with lifting capacities up to 500 tons. Features • Load Table lookup for over 70 mobile cranes • Boom configuration data from 5 major manufacturers • Lifting capacities up to 500 tons • Lift simulation and visualization • Supports iPhone and iPad Subscription Required WebCrane is free to download. Full access to load tables, simulations, and crane data requires an auto-renewing subscription: • Monthly: $0.99 / month • Yearly: $8.99 / year • 7-day free trial for new subscribers Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your Account Settings in the App Store after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Sling Load Calc
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.
- 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
Read full descriptionHide full description
Find accurate sling tension, length, and angle calculations anytime, anywhere with the Rigging Calculator Tool app. Need a reliable and precise tool for lifting and rigging calculations? The Rigging Calculator Tool app empowers engineers, project managers, heavy equipment operators, riggers and crane operators, students learning about rigging and lifting operations, and construction professionals with accurate sling tension analysis and load management. Ensure safe, efficient lifting operations and optimize every project with this must-have tool! ### Why Choose the Rigging Calculator Tool App? - Accurate Sling Tension Calculations – Calculate sling angles, sling loads, and tension values for various rigging configurations. - Easy-to-Use Interface – Intuitive design for quick and hassle-free operations. - Comprehensive Results – Get detailed load and sling tension reports to ensure safe lifts. - Industry-Specific Tool – Ideal for engineers, riggers, and construction professionals working in heavy lifting industries. ### Key Features: - Quickly and accurately calculate sling tensions for balanced lifting operations. - Support for both vertical and multi-sling load distributions. - Ensure compliance with safety standards during rigging and lifting tasks. - Generate detailed reports for project documentation. - Choose your preferred measurement system. Accurate sling load calculations are critical for safe and efficient lifting operations. ### How to Use: 1. Enter load weight and sling lengths. 2. Input sling angles and connection points. 3. View detailed tension calculations for each sling bridle. 4. Finally, get the results you want. The Rigging Calculator Tool app eliminates manual guesswork, minimizes errors, and ensures every lift is performed with confidence and precision. Optimize your lifting operations, minimize risk, and ensure compliance with safety standards. Join numerous professionals already benefiting from the Rigging Calculator Tool app. Don't miss out! Download the Rigging Calculator Tool today and elevate your rigging expertise! Privacy : https://topsuperapps.com/privacy.html Terms : https://topsuperapps.com/terms.html
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | webcrane | Sling Load Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 74 months | Every 2 weeks — better |
| Ads | — | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | andreas kohrt | Prakash Solanki |
Customer experience
webcrane
Sling Load Calc
In-app purchases
webcrane
- WebCrane Monthly7 Days trial$0.991 Month
- WebCrane Yearly7 Days trial$8.991 Year
Sling Load Calc
- 1 month plan$1.991 Month
- Special 1 Year Plan$9.991 Year
- Rigging Cal Pro3 Days trial$14.991 Year
Show 1 moreShow fewer
- Yearly Pro Plan$14.991 Year








