# Bolt Torque Spec Calc vs NEC Load Calculator

The clearest difference is price: NEC Load Calculator at Free against Bolt Torque Spec Calc's $4.99. Bolt Torque Spec Calc's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

NEC Load Calculator is free to download; Bolt Torque Spec Calc costs $4.99 up front. NEC Load Calculator sells 1 one-off in-app purchase. Bolt Torque Spec Calc asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Bolt Torque Spec Calc | NEC Load Calculator |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nec-load-calculator/id6785889421/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 1 MB | 12 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Bolt Torque Spec Calc

[App page](https://appshunter.io/ios/app/bolt-torque-spec-calc/id6760930975)

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

**In-app purchases:** none


### NEC Load Calculator

[App page](https://appshunter.io/ios/app/nec-load-calculator/id6785889421)

This app performs electrical load calculations based on the NEC 2023 code. It offers modules for residential, commercial, motor, and branch circuit calculations, along with panel scheduling and PDF export. Designed for licensed electricians and contractors.

**Highlights:** NEC 2023 load calculations, Residential, commercial, motor, branch circuit modules, Panel schedule editor, Step-by-step calculation results, Panel layout generation, PDF export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NEC LOAD PRO | $7.99 | one-time |


## Frequently asked questions

### Is Bolt Torque Spec Calc free?

Bolt Torque Spec Calc costs $4.99, with no in-app purchases.

### Is NEC Load Calculator free?

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

### Do Bolt Torque Spec Calc or NEC Load Calculator have ads?

Neither Bolt Torque Spec Calc nor NEC Load Calculator shows ads.

### Which is updated more often, Bolt Torque Spec Calc or NEC Load Calculator?

Bolt Torque Spec Calc ships an update every 3 weeks, and NEC Load Calculator every 3 weeks. Most recently, Bolt Torque Spec Calc was updated on October 14, 2026 and NEC Load Calculator on October 19, 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.*