# WrightPlan Field Solutions vs Sling Load Calc

The clearest difference is in-app purchases: WrightPlan Field Solutions at none against Sling Load Calc's 4. Sling Load Calc's advantage is update cadence (every 2 weeks vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

WrightPlan Field Solutions ships an update every 3 weeks, Sling Load Calc every 2 weeks. The most recent releases landed on September 19, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | WrightPlan Field Solutions | 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** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 110 MB | 111 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WrightPlan Inc.](https://appshunter.io/developer/1733700830) | [Prakash Solanki](https://appshunter.io/developer/1704788507) |

## What reviewers say

### WrightPlan Field Solutions

[App page](https://appshunter.io/ios/app/wrightplan-field-solutions/id6478700729)

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

**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 WrightPlan Field Solutions free?

WrightPlan Field Solutions 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 WrightPlan Field Solutions or Sling Load Calc have ads?

Neither WrightPlan Field Solutions nor Sling Load Calc shows ads.

### Which is updated more often, WrightPlan Field Solutions or Sling Load Calc?

WrightPlan Field Solutions ships an update every 3 weeks, and Sling Load Calc every 2 weeks. Most recently, WrightPlan Field Solutions was updated on September 19, 2026 and Sling Load Calc on August 31, 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.*