# NEC Code Studio & Tools vs MasterElec

The clearest difference is price: MasterElec at Free against NEC Code Studio & Tools's $2.99. NEC Code Studio & Tools's advantage is in-app purchases (none vs 2) and update cadence (monthly vs every 3 months). On ads, device support and iOS requirement there is nothing between them.

MasterElec is free to download; NEC Code Studio & Tools costs $2.99 up front. MasterElec sells 2 in-app purchases, starting at $4.99 per 7 days. NEC Code Studio & Tools asks for nothing beyond the download.

NEC Code Studio & Tools ships an update monthly, MasterElec every 3 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | NEC Code Studio & Tools | MasterElec |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/masterelec-nec-code-guide/id6760912109/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Freemium |
| Size | 494 MB | 28 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuhsiu Lai](https://appshunter.io/developer/433114647) | [TWOSCRIPTS LABS INC.](https://appshunter.io/developer/1861222980) |

## What reviewers say

### NEC Code Studio & Tools

[App page](https://appshunter.io/ios/app/nec-code-studio-and-tools/id6760605985)

**In-app purchases:** none


### MasterElec

[App page](https://appshunter.io/ios/app/masterelec-nec-code-guide/id6760912109)

A voice-powered assistant for electricians that provides offline access to NEC references and professional calculators. Quickly get answers to code questions and perform calculations without needing an internet connection.

**Highlights:** Voice-first interface for queries, 100% offline functionality, NEC reference access, Professional electrical calculators, Bookmark and export calculations, Free daily voice queries

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Susbcription | $4.99 | per 7 days |
| Annual Subscription | $39.99 | per year |


## Frequently asked questions

### Is NEC Code Studio & Tools free?

NEC Code Studio & Tools costs $2.99, with no in-app purchases.

### Is MasterElec free?

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

### Do NEC Code Studio & Tools or MasterElec have ads?

Neither NEC Code Studio & Tools nor MasterElec shows ads.

### Which is updated more often, NEC Code Studio & Tools or MasterElec?

NEC Code Studio & Tools ships an update monthly, and MasterElec every 3 months. Most recently, NEC Code Studio & Tools was updated on October 2, 2026 and MasterElec on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*