Comparison

A3Calc vs Panel Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

A3Calc

Features
Read full description

A3 Small Format Interchangeable Core Calculator (sister app of A2Calc and A4Calc) ---Programmed by a Locksmith, for Locksmiths--- Automatically calculates the pinning chart for A3 SFIC. Built for 6 or 7 pin systems, however, less can be achieved by using a decimal to erase a chamber. Minimum of a control and master key are required to make a chart. Additional change key available for all devices; 2 change keys available for 16:9 screen devices. Randomize function will generate completely random charts each time it is triggered. "Lock/Unlock" toggle disables/enables all inputs and functions to prevent unwanted/lost changes. Control Finder is an added bonus by reverse engineering a core to determine the control key's bitting. This is perfect when needing to remove multiple cores in a building when the control key has been lost. There are two methods for achieving the control key: 1. using the master, control, and bottom pins, or 2. using only the top/driver pins. Up to 16 different projects can be saved at any one given time. All projects are encrypted and protected with a passcode when stored on your device. All projects can be exported via AirPrint and Email. Compatibility: iPhone / iPod touch on iOS 8.0 or later and iPad on iOS 12.0 or later. Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com

About

Panel Tracker

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
Read full description

Easily label your electrical panel's breakers: Organize your panel by assigning custom labels to each breaker for quick identification. Add detailed notes: Keep track of important information for each breaker, like appliance connections or maintenance history. Instant overview of your panel: See all breaker labels and notes at a glance with a clear and concise layout. Tailor your panel to fit your needs: Fully customizable to match the exact number of breakers in your panel. Effortless sharing: Share your panel with others, whether it's with family members, electricians, or tenants. Secure, local storage: All your panel data stays stored locally by default for maximum privacy, with the option to sync for easy backup and sharing.

Screenshots

A3Calc4 screens
Panel Tracker4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
A3Calc versus Panel Tracker: the parameters behind the verdict, then further details
ParameterA3CalcPanel Tracker
Price$1.99Free — better
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 18 monthsEvery 15 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size2 MB25 MB
Age rating4+4+
DeveloperFarren DomeniciRooted Software

In-app purchases

None

A3Calc

No in-app purchases

None

Panel Tracker

No in-app purchases

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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