# Southwire® Conduit Fill Calc vs DeckTech.gg

The clearest difference is update cadence: DeckTech.gg at every 2 days against Southwire® Conduit Fill Calc's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Southwire® Conduit Fill Calc ships an update monthly, DeckTech.gg every 2 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Southwire® Conduit Fill Calc | DeckTech.gg |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (773 ratings)](https://appshunter.io/ios/app/southwire-conduit-fill-calc/id509204523/reviews)** | — |
| Number of ratings | **773** | — |
| Positive reviews | 70.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free | — |
| Size | 17 MB | 229 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [DAVID FRANCIS HIEMER](https://appshunter.io/developer/1893236617) |

## What reviewers say

### Southwire® Conduit Fill Calc

[App page](https://appshunter.io/ios/app/southwire-conduit-fill-calc/id509204523)

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

**Highlights:** Conduit size calculation, NEC fill percentages, Jam probability, Email results, Quick navigation

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and easy calculations
- 👍 User-friendly interface with spin wheel controls
- 📊 Shows actual fill percentage and NEC compliance
- 🔧 Ability to add multiple wire sizes simultaneously
- 💾 Customizable wire data entry

**What reviewers complain about**

- ⚠️ Accuracy issues reported by multiple users
- ❌ Limited wire gauge options (missing 16 & 18 AWG)
- 🔄 Changing conduit type erases conduit size
- 📉 Jam probability calculations unreliable
- 🗑️ No data persistence between calculations

**Reported bugs**

- Blank white screen on app launch
- Conduit size data erased when changing conduit type
- Inaccurate fill calculations compared to NEC standards
- Jam probability calculations not accurate
- App crashes and fails to display results

**Requested features**

- Add 16 & 18 AWG wire sizes
- Include bare solid copper and other conductor types
- Save calculation history/results
- Voltage drop calculator
- Maximum wire count per conduit type calculator


### DeckTech.gg

[App page](https://appshunter.io/ios/app/decktechgg/id6812951375)

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

**In-app purchases:** none


## Frequently asked questions

### Is Southwire® Conduit Fill Calc free?

Southwire® Conduit Fill Calc is free to download, with no in-app purchases.

### Is DeckTech.gg free?

DeckTech.gg is free to download, with no in-app purchases.

### Do Southwire® Conduit Fill Calc or DeckTech.gg have ads?

Neither Southwire® Conduit Fill Calc nor DeckTech.gg shows ads.

### Which is updated more often, Southwire® Conduit Fill Calc or DeckTech.gg?

Southwire® Conduit Fill Calc ships an update monthly, and DeckTech.gg every 2 days. Most recently, Southwire® Conduit Fill Calc was updated on November 6, 2026 and DeckTech.gg on November 6, 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.*