Comparison

StairBuilderPro vs Piper Inventory

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

Head to head
About

StairBuilderPro

This iPad app simplifies stair stringer layout by calculating and plotting all necessary points on your board. It eliminates the need for specialized tools and prior knowledge, guiding users through the process with visual aids. Works with both imperial and metric measurements.

Highlights
  • Graphical interface for dimension entry
  • Automatic plotting of stringer points
  • Step-by-step visual guidance
  • Imperial and metric measurement support
  • Eliminates need for framing square
  • Connect-the-dots cutting method
Features
Read full description

From the creator of BalusterPro comes StairBuilderPro, a unique stair stringer layout tool designed specifically for the iPad. Simply enter your dimensions on the graphical interface and StairBuilderPro will plot all of the points on your board needed for a perfectly cut stringer. For advanced users, a single tap will plot all of the points at once or with the step through method, the app will visually walk you through the entire process one step at a time. All there is left to do is connect the dots and cut along these lines. It is that simple. Unlike all the other stair stringer layout guides, there is no need for a framing square, stair gauges or any previous knowledge for building stairs. The only tools you will need are a pencil, tape measure, straight edge and a saw! Works in both imperial and metric measurements. Check out the video demo at my website to see StairBuilderPro in action. Check out my other construction related apps....BalusterPro for a baluster spacing calculator & TilePro for a simple tile layout tool.

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/

Screenshots

Piper Inventory4 screens

Verdict

The call

The clearest difference is price: Piper Inventory at Free against StairBuilderPro's $4.99. Piper Inventory also leads on review sentiment (100% vs 56%) and rating (3.7 vs 3.2). StairBuilderPro's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 14.0). On ratings volume, update cadence and ads 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

Piper Inventory is free to download; StairBuilderPro costs $4.99 up front. Piper Inventory sells 2 in-app purchases, starting at $22.00 per month. StairBuilderPro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Piper Inventory holds the better App Store score, 3.7 against 3.2. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews point the same way: 56% of StairBuilderPro's written reviews are positive against 100% of Piper Inventory's.

UpkeepUpdate frequency

StairBuilderPro ships an update every 8 months, Piper Inventory every 6 months. The most recent releases landed on September 25, 2026 and October 3, 2026 respectively.

Scorecard7 real differences · 3 level
StairBuilderPro versus Piper Inventory: the parameters behind the verdict, then further details
ParameterStairBuilderProPiper Inventory
Price$4.99Free — better
Rating3.2 (6 ratings)3.7 (3 ratings) — better
Positive reviews55.6% of reviews100.0% of reviews — better
Number of ratings6 — better3
Update frequencyEvery 8 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPadiPhone, iPad, iPod — better
Requires iOS8.0 — better14.0
Further details — not scored
Size12 MB17 MB
Age rating4+4+
DeveloperGreg GabrioPiper Diagnostics LLC

Customer experience

StairBuilderPro

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews9 reviews
Positive55.6%
Neutral0.0%
Negative44.4%

Piper Inventory

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

In-app purchases

None

StairBuilderPro

No in-app purchases

2 purchases

Piper Inventory

Subscriptions2
  • Monthly$22.001 Month
  • Annual$199.001 Year

Questions

Is StairBuilderPro free?
StairBuilderPro costs $4.99, with no in-app purchases.
Is Piper Inventory free?
Piper Inventory is free to download, with in-app purchases available.
Which has better reviews, StairBuilderPro or Piper Inventory?
Piper Inventory is rated higher. StairBuilderPro averages 3.2 out of 5 from 6 ratings, while Piper Inventory averages 3.7 from 3 ratings.
Do StairBuilderPro or Piper Inventory have ads?
Neither StairBuilderPro nor Piper Inventory shows ads.
Which is updated more often, StairBuilderPro or Piper Inventory?
StairBuilderPro ships an update every 8 months, and Piper Inventory every 6 months. Most recently, StairBuilderPro was updated on September 25, 2026 and Piper Inventory on October 3, 2026.

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