YearViewer vs Carpentry Formulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YearViewer
View a calendar overview for any year, past or future. Customize your view with optional week numbers, adjustable start days, and different week layouts. Pinch to zoom and use device settings for language.
- Yearly calendar overview
- Select any past or future year
- Optional week numbers (ISO 8601)
- Customizable first day of the week
- Pinch-to-zoom functionality
- Device language integration
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This app shows an overview calendar for any year. It shows the months, the days of the week, and (optionally) the week numbers. When you start the app it shows the current year, but the "time machine" button allows you to select any year in the past or future. Features: - Use pinch gestures and double-tap to zoom - The names of the months and days follow the "international" settings of your device - The "time machine" button lets you jump to any year - Weeknumbers (as defined by the ISO 8601 standard) can be shown or hidden - Choose the first day of the week: Sunday, Monday, or any other day - The current day is shown highlighted - The layout of the calendar adjusts itself to the orientation of the device (portrait / landscape) - Choose between different week layouts
Carpentry Formulator
This app provides over 150 formulas and dozens of conversions for carpenters and builders. It calculates loads on walls and headers, material quantities for projects, and dimensions for roofing and stairs. It also includes area and volume calculations for various shapes.
- Load calculations for walls and headers
- Material quantity estimation (joists, studs, concrete)
- Roofing and stair dimension calculations
- Area and volume formulas for geometric shapes
- Dozens of unit conversion tools
- Shareable calculation results
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CARPENTRY FORMULATOR contains over 150 formulas that are useful for carpenters and builders. This app calculates loads on walls and loads on headers.The app calculates space between balusters, wood needed for railings It calculates Hardwood Flooring, calculations on Board Feet and Lumber conversions. It calculates the number of Joists, Sheet Rock, Concrete and Asphalt needed. The program has special sections on Roofing and Stairs. The CARPENTRY FORMULATOR has various formulas to calculate area and volumes of differing shapes. The program also includes dozens of conversions; everything from square feet to square inches and square inches to feet of water. Every result in CARPENTRY FORMULATOR shared. In the coming months there will be updates to CARPENTRY FORMULATOR that will include additional formulas. If there are formulas you would like that are not yet included, just e-mail us and we will try to include it in our next update. LOAD ON WALLS *Load on One Story Building Truss Roof *Load on One Story Building with Attic Stick Built *Load on Two Story Building with Attic Stick Roof *Total Load on Beam *Weight Header Can Carry LUMBER CALCULATION *Cost of Hardwood Flooring *Calculating Board Feet *Lumber Conversions- Board and Linear Feet MATERIALS NEEDED *Number of Joist Required *Number of Studs Required *Sheet Rock Coverage *Asphalt Needed *Cubic Yard of Concrete Needed *Coverage from Concrete ROOFING *Shed roof *Gable roof *Hip roof on square building *Gable Roof Sheathing *Shed Roof Sheeting *Hip Roof Sheeting STAIRS *Number of risers *Unit risers *Unit run *Total run Area Formulas Include: SQUARES *Area *Perimeter *Length of the diagonal RECTANGLES *Area *Perimeter *Length of base *Height *Length of diagonal PYRAMIDS *Pyramid area *Pyramid v *Volume prism SPHERES *Area of surface *Sde of cube *Volume of sphere Cylinder: *Cylinder area *Cylinder length *Volume *Capacity *Area of Cylinder Base *Length of Cylinder CIRCLES *Circumference *Radius *Diameter of Circle *Area of circle *Arc length *Degrees of arcs *Radius of arc CONES *Lateral surface area *Total surface area Ellipse:Area Hexagon:Area Parallelogram Area 200 Conversion formulas
Screenshots
Verdict
The clearest difference is rating: YearViewer at 5.0 against Carpentry Formulator's 3.8. YearViewer also leads on review sentiment (67% vs 25%) and in-app purchases (none vs 1). Carpentry Formulator's advantage is update cadence (every 2 months vs every 5 months). On price, ratings volume, ads 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. Carpentry Formulator sells 1 one-off in-app purchase. YearViewer asks for nothing beyond the download.
YearViewer holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 67% of YearViewer's written reviews are positive against 25% of Carpentry Formulator's.
YearViewer ships an update every 5 months, Carpentry Formulator every 2 months. The most recent releases landed on October 14, 2026 and October 30, 2026 respectively.
| Parameter | YearViewer | Carpentry Formulator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.8 (4 ratings) |
| Positive reviews | 66.7% of reviews — better | 25.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Gerard Putter | Historycentral.com |
Customer experience
YearViewer
Carpentry Formulator
In-app purchases
YearViewer
No in-app purchases
Carpentry Formulator
- Professional Features$2.99
Questions
Is YearViewer free?
Is Carpentry Formulator free?
Which has better reviews, YearViewer or Carpentry Formulator?
Do YearViewer or Carpentry Formulator have ads?
Which is updated more often, YearViewer or Carpentry Formulator?
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