Comparison

Copper vs AC Calculator Pro

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

Head to head
About

Copper

View and analyze EAGLE CAD files, including PCB layouts and schematics, directly on your mobile device. Create and render photorealistic 3D models of your PCBs with customizable lighting and materials. Organize your imported files into a convenient pocket library.

Highlights
  • View EAGLE CAD files
  • Analyze PCB layouts and schematics
  • Create 3D PCB models
  • Assign 3D models to footprints
  • Real-time photorealistic rendering
  • Import files from various sources
  • Organize files in a personal library
Features
Read full description

Open any EAGLE CAD file (from version 6 and above) directly on your iPhone and investigate the PCB layout and schematics with your finger. Select parts and signals, manage parts and Bill of Materials. Copper creates 3D versions of your PCB including parts that you assign from our extensive 3D model library to your footprints. Copper then renders a photorealistic representation in real time that you can touch, rotate and move in a virtual studio. Setup lights and materials like the solder mask or the floor. Import EAGLE files from any source like the web (just download a ZIP file with EAGLE files), from Github, your Dropbox, or send PCB files directly via Airdrop, Mail or iMessage to your iPhone or iPad. Every file you import is kept in Coppers library. This way you can build up a nice library of PCBs and Schematics right in your pocket. Copper is also available for the Mac and both share the same codebase and file format.

About

AC Calculator Pro

This app assists HVAC professionals and homeowners with air conditioning and heat pump sizing. It provides detailed calculations for cooling/heating capacity, recommends equipment types, and offers unit equivalences and price estimates.

Highlights
  • Commercial Capacity Calculations (BTU/h)
  • Recommended Equipment Types
  • Unit Equivalences (BTU, kW, Kcal, Tons)
  • Updated Price Estimates
  • Energy Consumption Insights
Features
Read full description

It’s a powerful and comprehensive application designed with every detail in mind. Perfect for HVAC professionals, heating and cooling companies, and anyone seeking reliable guidance on air conditioning or heat pump sizing. With AC Calculator Pro, you’ll have access to: Commercial Capacity in BTU/h – Calculate precise cooling or heating capacities for any space. Recommended Equipment Types – Get tailored suggestions for Window Units, Mini Split Systems, Multi Split Systems, Ducted Central Units, Packaged Systems, and Chillers. Unit Equivalences – Instantly convert between BTU, kW, Kcal, and Tons per Hour to fully understand your system’s performance. Updated Price Estimates – View current market prices for each capacity to estimate your equipment’s cost. Energy Consumption Insights – Compare inverter vs. conventional devices to plan for energy savings and operational efficiency.

Screenshots

Copper4 screens
AC Calculator Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Copper at 47% against AC Calculator Pro's 0%. Copper also leads on price ($4.99 vs $9.99) and ratings volume (13 vs 1). AC Calculator Pro's advantage is rating (5.0 vs 3.3). On update cadence, ads, in-app purchases and monetization model 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

Copper costs $4.99 and AC Calculator Pro $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

AC Calculator Pro holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Copper has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 47% of Copper's written reviews are positive against 0% of AC Calculator Pro's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Copper versus AC Calculator Pro: the parameters behind the verdict, then further details
ParameterCopperAC Calculator Pro
Price$4.99 — better$9.99
Rating3.3 (13 ratings)5.0 (1 ratings) — better
Positive reviews47.4% of reviews — better0.0% of reviews
Number of ratings13 — better1
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.3 — better18.6
Further details — not scored
Size78 MB9 MB
Age rating17+4+
DeveloperPhillip SchusterMelchisedec Martinez Rodriguez

Customer experience

Copper

All ratings13 ratings
Positive46.2%
Neutral15.4%
Negative38.5%
Written reviews19 reviews
Positive47.4%
Neutral10.5%
Negative42.1%

AC Calculator Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Copper

No in-app purchases

None

AC Calculator Pro

No in-app purchases

Questions

Is Copper free?
Copper costs $4.99, with no in-app purchases.
Is AC Calculator Pro free?
AC Calculator Pro costs $9.99, with no in-app purchases.
Which has better reviews, Copper or AC Calculator Pro?
AC Calculator Pro is rated higher. Copper averages 3.3 out of 5 from 13 ratings, while AC Calculator Pro averages 5.0 from 1 ratings.
Do Copper or AC Calculator Pro have ads?
Neither Copper nor AC Calculator Pro shows ads.
Which is updated more often, Copper or AC Calculator Pro?
Copper ships an update every 3 months, and AC Calculator Pro every 3 months. Most recently, Copper was updated on October 24, 2026 and AC Calculator Pro on October 27, 2026.

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