3Pin Keyboard vs RedX Construction Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3Pin Keyboard
This utility app provides firmware data for a specific keyboard model. It includes version information for the firmware, ensuring compatibility and functionality.
- Firmware data updates
- Version 1.3.3 FW data
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Firmware Updates App include FW data ver:1.3.3
RedX Construction Calculator
This free utility app performs complex calculations for construction professionals. It handles feet-inch-fraction math, roof pitches, stair layouts, and unit conversions with ease. Offers step-by-step guides and both light and dark modes.
- Feet-inch-fraction math
- Roof pitch and rafter solvers
- Stair layout calculations
- Unit conversion (imperial/metric)
- Area and volume calculations
- Step-by-step guides
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The 100% FREE construction calculator. REDX CALC is the feet-inch-fraction calculator for framers, carpenters, contractors and builders: rafter, stair, roof pitch and framing math with no ads, no subscriptions and no in-app purchases. Work the way you measure: add, cut and convert full feet-inch dimensions with fractions, and switch between imperial and metric in one tap. FEET & INCHES MATH • Add, subtract, multiply and divide feet-inch measurements with fractions • Adjustable fraction precision • Instant conversion between yards, feet, inches, meters, cm and mm • Percent, square, square root and reciprocal functions • Memory keys and automatic calculation history RIGHT TRIANGLES & ROOFS • Pitch, Rise, Run and Diagonal keys: enter what you know, tap to solve the rest • Hip/Valley and Jack rafter solvers • Miter angles for trim and framing STAIRS, ARCS & CIRCLES • Stair layouts: risers, treads, stringers and the stairwell opening • Arc solver for arched openings • Circle facts, columns and cone volumes DIMENSIONS • Length, Width and Height registers for areas and volumes • Unit-aware math keeps your results in the units you build with KNOW-HOW BUILT IN • Step-by-step guides for the basics, roofs, stairs, circles, conversions and more • Light and dark mode 100% FREE. FOREVER. No ads. No in-app purchases. No subscriptions. Every feature included. Part of the RedX Apps family: RedX Decks, RedX Roof, RedX Walls and RedX Stairs. Terms of Use https://www.redxapps.com/terms-of-service
Screenshots
Verdict
The clearest difference is review sentiment: RedX Construction Calculator at 100% against 3Pin Keyboard's 0%. RedX Construction Calculator also leads on rating (4.8 vs 1.0) and ratings volume (37 vs 2). 3Pin Keyboard's advantage is iOS requirement (8.0 vs 13.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RedX Construction Calculator holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: RedX Construction Calculator has 37 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of 3Pin Keyboard's written reviews are positive against 100% of RedX Construction Calculator's.
| Parameter | 3Pin Keyboard | RedX Construction Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.8 (37 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 37 — better |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Shiling Digital Technology.co., Ltd | RedX Technology Inc |
Customer experience
3Pin Keyboard
RedX Construction Calculator
In-app purchases
3Pin Keyboard
No in-app purchases
RedX Construction Calculator
No in-app purchases
Questions
Is 3Pin Keyboard free?
Is RedX Construction Calculator free?
Which has better reviews, 3Pin Keyboard or RedX Construction Calculator?
Do 3Pin Keyboard or RedX Construction Calculator have ads?
Other comparisons
