Comparison

Piper Inventory vs Kopperfield

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

Head to head
About

Piper Inventory

Manage your warehouse or mobile workstation inventory on the go. Easily add items, set minimum quantities, and use a Bluetooth barcode scanner to track stock. Syncs between devices for collaboration and generates restock lists.

Highlights
  • On-the-go inventory management
  • Bluetooth barcode scanner support
  • Set minimum stock quantities
  • Restock list generation
  • Inventory history tracking
  • Multi-location account management
  • Spreadsheet upload for setup
Features
Read full description

Disclaimer: Piper Inventory requires a single in-app subscription to be used. There are no additional subscriptions or payments within the app to unlock specific features. Once you pay for a subscription to access Piper Inventory, you will be able to use all it's features. EASILY AND QUICKLY MANAGE INVENTORY ON-THE-GO Easily manage inventory for your warehouse or mobile workstation with a standard bluetooth barcode scanner and never be caught without the items you need. Piper Inventory is an easy-to-use app that allows you to add items you’d like to keep stocked in your inventory, set a minimum quantity to keep on hand, and then use a bluetooth barcode scanner to easily remove items from your inventory as they’re used. Restock - will act as your ‘shopping list’ to keep everything stocked Inventory - is where you can add and remove items or change the minimum quantity History - allows you to see what’s being used and what isn’t - so you can eliminate unused stock Account - is where you can change your Hub if you are managing multiple inventory locations HOW IT WORKS The Piper Inventory app requires a little bit of setup on the front end, so that on a daily basis it requires nearly no time at all to use. *Setup* You can either enter items and their UPC numbers directly in the app or simply upload a spreadsheet of your inventory to the online Admin Portal. *Barcodes* You can print off barcodes with randomly generated UPC numbers from our website or directly use the barcode on an item’s packaging! *On The Job* simply scan an item’s barcode to remove it from current inventory, no taps or clicks required! When you’re ready, use the ‘Restock’ page to review needed inventory. Your inventory and restocking needs will be synced between devices to make collaboration easy. WHERE DID IT COME FROM? Piper Inventory was developed when we discovered a need for simple and robust inventory management software to use in our plumbing vans. There’s nothing more frustrating than showing up for a job and finding you don’t have some small part you could have easily brought! With Piper Inventory and a well structured van build-out, we rarely find ourselves without the needed parts or tools, and it is effortless to use. If this setup sounds like it could help you, visit Piper Vans to find out how a trade-optimized van build-out could save you time and money but most importantly on-the-job frustration! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kopperfield

Streamline electrical design and permitting with powerful tools for load calculations, panel schedules, and single-line diagrams. Quickly reference the National Electrical Code with an AI-powered chatbot and generate instant PDF reports for inspectors and clients.

Highlights
  • Load calculator with NEC standards
  • Single line diagram tool
  • Panel schedule creation
  • NEC chatbot
  • Instant PDF report generation
  • AI panel photo processing
  • Team dashboard
Features
Read full description

Save time and money. Get ready for permits and projects with faster and easier design tools from Kopperfield, including load calcs, line diagrams, panel schedules, and more. Once logged into your Kopperfield account, you'll enjoy our: * Load calculator: Easy-to-use interface pre-loaded with common appliances and their standard output values from the National Electrical Code. Add information on the property and your calculation will automatically update. Supports both commercial and residential calculations, as well as the Standard (NEC Article 220 Part III), Optional (NEC Article 220 Part IV), and 2026 Standard (NEC Article 120 Part III) methods. * Single line diagram tool: Contains dozens of common templates and electrical symbols to make it easy to generate new diagrams and share them with your team. View diagrams from any device and create new templates on tablet or desktop for your whole team to use. * Panel schedules: Includes tools to complete panel schedules and create labels for electrical panels. Drag-and-drop interface makes it easy to arrange and customize circuits for both split-phase and three-phase projects. * NEC chatbot: Custom chatbot with advanced search capabilities to quickly reference specific sections of the 2017, 2020, or 2023 National Electrical Code. Includes the following features: * Fast PDF outputs: instantly generate a downloadable, one-page PDF report of your load calc, line diagram, or panel schedule to share with inspectors and customers * Smart property data: enter the property address and we’ll pull in the square footage for any customer project or electrical load calculation * AI panel photo processing: upload a photo of an electrical panel to automatically add items to your load calculation or panel schedule * Team dashboard: store your team's projects and documents in one place for easier management, access, and review *Single and three phase options: use a variety of nominal voltages for residential and commercial building types, including: 120/240V, 120/208V, 120/240V, 208Y/120V 3Ø, 240V 3Ø Delta, 240V 3Ø Hi-leg Delta, 347V 3Ø Delta, 480Y/277V 3Ø, 480V 3Ø Delta, 600Y/347Y 3Ø, 600V 3Ø Delta. * Standard scenarios: generate load calcs for scenarios including single family homes (standard and optional methods), multi dwelling units (i.e., duplex, triplex, quad), 120/208v (three-phase power) dwellings, accessory dwelling units and additions, commercial occupancy types, and heat pumps * Common appliance defaults: choose from a pre-loaded list of common appliances and standard output values that you can adjust for every load calculation * EV charger inputs: include EV charger values to any load calculation, essential for modern homes

Screenshots

Piper Inventory4 screens
Kopperfield4 screens

Verdict

The call

The clearest difference is review sentiment: Piper Inventory at 100% against Kopperfield's 0%. Kopperfield's advantage is in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 6 months). On price, ads, device support and iOS requirement 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. Piper Inventory sells 2 in-app purchases, starting at $22.00 per month. Kopperfield asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Kopperfield holds the better App Store score, 3.9 against 3.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews complicate that: 100% of Piper Inventory's written reviews are positive against 0% of Kopperfield's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Piper Inventory ships an update every 6 months, Kopperfield every 3 weeks. Both last shipped on October 3, 2026.

Scorecard6 real differences · 4 level
Piper Inventory versus Kopperfield: the parameters behind the verdict, then further details
ParameterPiper InventoryKopperfield
PriceFreeFree
Rating3.7 (3 ratings)3.9 (9 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings39 — better
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size17 MB45 MB
Age rating4+4+
DeveloperPiper Diagnostics LLCKopperfield

Customer experience

Piper Inventory

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Kopperfield

All ratings9 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

2 purchases

Piper Inventory

Subscriptions2
  • Monthly$22.001 Month
  • Annual$199.001 Year
None

Kopperfield

No in-app purchases

Questions

Is Piper Inventory free?
Piper Inventory is free to download, with in-app purchases available.
Is Kopperfield free?
Kopperfield is free to download, with no in-app purchases.
Which has better reviews, Piper Inventory or Kopperfield?
Kopperfield is rated higher. Piper Inventory averages 3.7 out of 5 from 3 ratings, while Kopperfield averages 3.9 from 9 ratings.
Do Piper Inventory or Kopperfield have ads?
Neither Piper Inventory nor Kopperfield shows ads.
Which is updated more often, Piper Inventory or Kopperfield?
Piper Inventory ships an update every 6 months, and Kopperfield every 3 weeks. Most recently, Piper Inventory was updated on October 3, 2026 and Kopperfield on October 3, 2026.

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