# IDF Manufacturing vs VoltForge

The clearest difference is in-app purchases: IDF Manufacturing at none against VoltForge's 1. IDF Manufacturing also leads on iOS requirement (12.0 vs 15.1). VoltForge's advantage is update cadence (every 3 weeks vs every 26 months). On price, ads and device support there is nothing between them.

Both are free to download. VoltForge sells 1 one-off in-app purchase. IDF Manufacturing asks for nothing beyond the download.

IDF Manufacturing ships an update every 26 months, VoltForge every 3 weeks. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | IDF Manufacturing | VoltForge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/voltforge/id6762475628/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 47 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The ID Factory](https://appshunter.io/developer/1135006836) | [Clark Allen](https://appshunter.io/developer/1888902287) |

## What reviewers say

### IDF Manufacturing

[App page](https://appshunter.io/ios/app/idf-manufacturing/id1571906045)

**Features:** macOS Compatibility

**In-app purchases:** none


### VoltForge

[App page](https://appshunter.io/ios/app/voltforge/id6762475628)

This app provides electricians with essential field calculators, up-to-date code references, and a job estimator. It offers tools for Ohm's Law, voltage drop, conduit bending, and wire ampacity, all accessible offline. Pro features are available as a one-time purchase.

**Highlights:** Ohm's Law & Voltage Drop Calculator, Fraction & Wire Ampacity Tables, Conduit Bending & Fill Calculators, Wire Pull Tension Calculator, NEC 2023 Quick Reference, Job Estimator with PDF Export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoltForge Pro | $4.99 | one-time |


## Frequently asked questions

### Is IDF Manufacturing free?

IDF Manufacturing is free to download, with no in-app purchases.

### Is VoltForge free?

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

### Do IDF Manufacturing or VoltForge have ads?

Neither IDF Manufacturing nor VoltForge shows ads.

### Which is updated more often, IDF Manufacturing or VoltForge?

IDF Manufacturing ships an update every 26 months, and VoltForge every 3 weeks. Most recently, IDF Manufacturing was updated on October 27, 2026 and VoltForge on October 22, 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.*