# NSSL Work Safe vs Rigging Calculator

The clearest difference is in-app purchases: NSSL Work Safe at none against Rigging Calculator's 4. NSSL Work Safe also leads on ads (none vs shown). Rigging Calculator's advantage is update cadence (every 2 weeks vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Rigging Calculator sells 4 in-app purchases, starting at $0.99 per 7 days. NSSL Work Safe asks for nothing beyond the download.

NSSL Work Safe ships an update monthly, Rigging Calculator every 2 weeks. The most recent releases landed on November 3, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | NSSL Work Safe | Rigging Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nssl-work-safe/id1508607432/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 1 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [National Safety Solutions Ltd](https://appshunter.io/developer/1370713153) | [Grima Hdez](https://appshunter.io/developer/1741481582) |

## What reviewers say

### NSSL Work Safe

[App page](https://appshunter.io/ios/app/nssl-work-safe/id1508607432)

This utility app works with a specific suite of safety products, including employee badges and NFC tags. It facilitates safety compliance and management within a workplace environment.

**Highlights:** Employee badge integration, NFC tag compatibility, Workplace safety management, Start Right suite integration

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

**In-app purchases:** none


### Rigging Calculator

[App page](https://appshunter.io/ios/app/rigging-calculator-sling-load/id6789944360)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $0.99 | per 7 days |
| RigMaster Pro Monthly | $2.99 | per month |
| Pro Yearly | $19.99 | per year |
| RigMaster Pro | $39.99 | one-time |


## Frequently asked questions

### Is NSSL Work Safe free?

NSSL Work Safe is free to download, with no in-app purchases.

### Is Rigging Calculator free?

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

### Do NSSL Work Safe or Rigging Calculator have ads?

Rigging Calculator shows ads; NSSL Work Safe does not.

### Which is updated more often, NSSL Work Safe or Rigging Calculator?

NSSL Work Safe ships an update monthly, and Rigging Calculator every 2 weeks. Most recently, NSSL Work Safe was updated on November 3, 2026 and Rigging Calculator on November 13, 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.*