Stair Stringer vs Chippy Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stair Stringer
This app calculates all necessary measurements for building a stair stringer, including risers, run, angle, and length. Easily adjust parameters and switch between Imperial and Metric units. Share your calculated results via email or text.
- Calculates stair risers and run
- Determines stair angle and stringer length
- Calculates step height and tread depth
- Determines the number of steps
- Adjustable parameters
- Imperial or Metric units
- Share results via email/text
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This App is used for finding the measurements needed to construct a Stair Stringer. It calculates stair risers and run, stair angle, stringer length, step height, tread depth, and the number of steps required for a given run of stairs. Easy to adjust parameters to customize and fit your requirements. Inputs and Results can be Imperial or Metric. The calculated results can be emailed or texted as needed.
Chippy Tools
This app simplifies complex calculations for construction professionals. It offers a variety of tools for tasks like spacing, measurements, and material estimation, helping to reduce errors and save time on job sites. Available on iPhone and iPad, it aims to be an essential tool for tradespeople.
- Baluster spacing calculator
- Flat run attached baluster calculator
- Square calculator
- Concrete calculator
- Stair calculator
- Supports millimeters, feet, and inches
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Chippy Tools is the must-have calculator for carpenters and handy folks looking to simplify math on the job. Whether you're on your iPhone or iPad, Chippy Tools is for you. Its user-friendly design lets you focus on carpentry while the app handles the math. Perfect for architects, builders, carpenters, construction workers, contractors, designers, engineers, tradespeople, and woodworkers of all kinds, Chippy Tools speeds up common calculations with precision. Save time and cut costs by reducing site errors. WHAT IS A CHIPPY? In Australia, carpenters are often called Chippy. WHY CHIPPY TOOLS? Our mission at Chippy Tools is to redefine top-notch apps for carpenters. We aim to develop a sustainable business model, adding new calculations to keep saving you time and money. FEATURES • Baluster spacing calculator - Quickly calculate spacing for flat runs. • Flat run attached baluster calculator - Simple, fast calculations for attached balusters. • Supports millimeters, feet, and inches. PREMIUM FEATURES (Requires Subscription) • Square calculator - Ensure structures are perfectly square. • Concrete calculator - Calculate concrete needed for slabs and posts. • Dumpy level calculator - Find relative level from benchmarks. • Equal spacing calculator - Calculate even spacing effortlessly. • Gravel calculator - Determine gravel volume needed. • Pitch calculator - Calculate pitch with rise and run. • Raked wall calculator - Measure raked walls using height or pitch. • Running calculations - Enter start number and interval. • Soil calculator - Find soil volume for landscaping. • Stair calculator - Calculate going, stringer, and rise for stairs. • Triangle calculator - Solve triangle measurements with ease. FEEDBACK Want a new calculator? Email us at feedback@chippy.tools. NO ADS EVER We promise no ads in Chippy Tools. Enjoy the best experience for your purchase. SUPPORT Got questions or feedback? Contact us for free tech support at support@chippy.tools. If Chippy Tools aids you, please leave an App Store review to help others find it. Subscription Terms of Service: https://chippy.tools/terms/ Proudly made in Brisbane, Australia.
Screenshots
Verdict
The clearest difference is price: Chippy Tools at Free against Stair Stringer's $1.99. Chippy Tools also leads on update cadence (every 8 days vs every 5 weeks) and ratings volume (905 vs 86). Stair Stringer's advantage is in-app purchases (none vs 10) and rating (4.7 vs 4.5). On ads 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
Chippy Tools is free to download; Stair Stringer costs $1.99 up front. Chippy Tools sells 9 in-app purchases, starting at $2.99 per 7 days. Stair Stringer asks for nothing beyond the download.
Stair Stringer holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Chippy Tools has 905 ratings behind it against 86, so its average is the more settled of the two. Written reviews point the same way: 67% of Stair Stringer's written reviews are positive against 55% of Chippy Tools's.
Stair Stringer ships an update every 5 weeks, Chippy Tools every 8 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.
| Parameter | Stair Stringer | Chippy Tools |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.7 (86 ratings) — better | 4.5 (905 ratings) |
| Positive reviews | 66.7% of reviews — better | 55.2% of reviews |
| Number of ratings | 86 | 905 — better |
| Update frequency | Every 5 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | #126 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 2 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | H3 Apps, LLC | Peth Pty Ltd |
Customer experience
Stair Stringer
Chippy Tools
Bugs and requests
Stair Stringer
Not enough reviews yet to summarise bugs or requests.
Chippy Tools
Reported bugs
2 issues- Square check feature not working
- Measurements disappear after partial use
Requested features
4 requests- Add more construction-related calculators
- Improve stair and rafter tools
- Include material quantity estimations
- Add support for metric and imperial units
In-app purchases
Stair Stringer
No in-app purchases
Chippy Tools
- Chippy Tools Pro - Weekly1 Month trial$2.997 Days
- Chippy Tools Pro - Weekly3 Days trial$3.997 Days
- Chippy Tools Pro - Quarterly3 Months trial$4.993 Months
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- Chippy Tools Pro - Monthly$5.991 Month
- Chippy Tools Pro - Monthly1 Month trial$5.991 Month
- Chippy Tools Pro - Annual3 Days trial$19.991 Year
- Chippy Tools Pro - Annual1 Year trial$19.991 Year
- Chippy Tools Pro - Annual$19.991 Year
- One Time Purchase2 variants$85.00
Questions
Is Stair Stringer free?
Is Chippy Tools free?
Which has better reviews, Stair Stringer or Chippy Tools?
Do Stair Stringer or Chippy Tools have ads?
Which is updated more often, Stair Stringer or Chippy Tools?
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