# Span Installer vs Concentric Neutral Calculator

The clearest difference is update cadence: Span Installer at fortnightly against Concentric Neutral Calculator's every 7 months. Concentric Neutral Calculator's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Span Installer ships an update fortnightly, Concentric Neutral Calculator every 7 months. The most recent releases landed on October 22, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Span Installer | Concentric Neutral Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (13 ratings)](https://appshunter.io/ios/app/span-installer/id1477128965/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | Free | — |
| Size | 104 MB | 5 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Span.io, Inc](https://appshunter.io/developer/1477128844) | [Southwire Company](https://appshunter.io/developer/440338423) |

## What reviewers say

### Span Installer

[App page](https://appshunter.io/ios/app/span-installer/id1477128965)

This app streamlines the installation and servicing of new and existing SPAN panels. It offers enhanced navigation, an improved breaker labeling process, and integrated troubleshooting support. Users can also confirm communications with battery systems and program setpoints for energy management.

**Highlights:** Faster new SPAN Panel commissioning, Simplified user navigation, Improved breaker labeling, Integrated troubleshooting and support, Confirm hardware communications, Program setpoints with SPAN PowerUp

**In-app purchases:** none


### Concentric Neutral Calculator

[App page](https://appshunter.io/ios/app/concentric-neutral-calculator/id6478878772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Span Installer free?

Span Installer is free to download, with no in-app purchases.

### Is Concentric Neutral Calculator free?

Concentric Neutral Calculator is free to download, with no in-app purchases.

### Do Span Installer or Concentric Neutral Calculator have ads?

Neither Span Installer nor Concentric Neutral Calculator shows ads.

### Which is updated more often, Span Installer or Concentric Neutral Calculator?

Span Installer ships an update fortnightly, and Concentric Neutral Calculator every 7 months. Most recently, Span Installer was updated on October 22, 2026 and Concentric Neutral Calculator on October 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.*