# A3Calc vs Panel Tracker

The clearest difference is price: Panel Tracker at Free against A3Calc's $1.99. A3Calc's advantage is iOS requirement (12.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Panel Tracker is free to download; A3Calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A3Calc ships an update every 18 months, Panel Tracker every 15 months. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | A3Calc | Panel Tracker |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/panel-tracker/id6692633713/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 15 months** |
| Monetization | — | Free |
| Size | 2 MB | 25 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Farren Domenici](https://appshunter.io/developer/583666476) | [Rooted Software](https://appshunter.io/developer/1633939445) |

## What reviewers say

### A3Calc

[App page](https://appshunter.io/ios/app/a3calc/id1340952531)

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

**In-app purchases:** none


### Panel Tracker

[App page](https://appshunter.io/ios/app/panel-tracker/id6692633713)

Organize your electrical panel by labeling breakers with custom notes. Get an instant overview and share your panel layout easily. Data is stored locally for privacy, with optional syncing.

**Highlights:** Custom breaker labels, Detailed notes for each breaker, Instant panel overview, Customizable to panel size, Effortless sharing, Secure local storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A3Calc free?

A3Calc costs $1.99, with no in-app purchases.

### Is Panel Tracker free?

Panel Tracker is free to download, with no in-app purchases.

### Do A3Calc or Panel Tracker have ads?

Neither A3Calc nor Panel Tracker shows ads.

### Which is updated more often, A3Calc or Panel Tracker?

A3Calc ships an update every 18 months, and Panel Tracker every 15 months. Most recently, A3Calc was updated on October 16, 2026 and Panel Tracker 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.*