Comparison

PMI Atom vs Concentric Neutral Calculator

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

Head to head

Concentric Neutral Calculator

Free

🔧 Utilities

No ratingsView app →

About

PMI Atom

Read full description

The PMI Atom application is used in conjunction with the Atom Environmental Sensor from Power Monitors, Inc. With this application, users can download time-series measurements from their Atoms, take real-time spot measurements and more! The PMI Atom application also allows users to integrate seamlessly with PQ Canvass, PMI's flag-ship time-series analysis platform.

About

Concentric Neutral Calculator

Features

Read full description

Calculate your best concentric neutral configuration for Medium Voltage Cables based on ICEA S-94-649 standard for Utility and Renewable (Solar, Wind, BESS) applications.

Screenshots

PMI Atom4 screens

Concentric Neutral Calculator2 screens

Verdict

The call

The clearest difference is update cadence: PMI Atom at every 5 days against Concentric Neutral Calculator's every 7 months. On price, 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

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

UpkeepUpdate frequency

PMI Atom ships an update every 5 days, Concentric Neutral Calculator every 7 months. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

Scorecard1 real difference · 5 level

PMI Atom versus Concentric Neutral Calculator: the parameters behind the verdict, then further details
Parameter	PMI Atom	Concentric Neutral Calculator
Price	Free	Free
Update frequency	Every 5 days — better	Every 7 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.0 — better	16.6
Further details — not scored
Size	23 MB	5 MB
Age rating	17+	4+
Developer	Power Monitors, Incorporated	Southwire Company

In-app purchases

None

PMI Atom

No in-app purchases

None

Concentric Neutral Calculator

No in-app purchases

Questions

Is PMI Atom free?

PMI Atom 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 PMI Atom or Concentric Neutral Calculator have ads?

Neither PMI Atom nor Concentric Neutral Calculator shows ads.

Which is updated more often, PMI Atom or Concentric Neutral Calculator?

PMI Atom ships an update every 5 days, and Concentric Neutral Calculator every 7 months. Most recently, PMI Atom was updated on September 8, 2026 and Concentric Neutral Calculator on September 19, 2026.