WoodMaster vs Grindcalculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WoodMaster
This app provides a comprehensive suite of tools for woodworkers, from beginners to advanced. It offers calculators for board feet, shelves, and decking, along with conversion tools, reference charts for screws and nails, and visual guides for joints and wood types.
- Board Foot Calculator with Tally
- Shelf and Decking Calculators
- Fraction and Length Converters
- Proportional and Golden Ratio Tools
- Nominal to Actual Wood Size
- Screw, Nail, Joint, and Wood Charts
- Downloadable Project Plans
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WoodMaster is a very handy tool for Woodworkers. A LOADED Woodworking app for Woodworkers. Woodworking apps are few and far between and as being Woodworkers ourselves, we wanted an app for Woodworkers that did much more than simple board foot calculations! Welcome to WoodMaster! Both beginners and advanced Woodworkers will find WoodMaster packed with many time-saving features! Check the features list below and you will find a long list useful tools that only WoodMaster includes in a singe app! WoodMaster will continue to grow with more tools being added to each new version release. Features List: Board Foot Calculator: A board foot calculator that includes a Tally count and Tally cost. Using the Tally feature, you could enter varying sizes of wood stock in groups. For example, enter all 2x4's, add it to the Tally, then 2x6's, add it to the Tally, etc. You can basically use the Tally feature to estimate the cost of an entire woodworking project. Shelf Calculator Woodworking Shelf Calculator: Installing shelves for a cabinet, bookcase shelves, etc.? This will calculate spacing between the shelves evenly. Supports inches or millimeters and gives you the exact position of every shelf. Decking Calculator (NEW!) Calculates the number of deck boards required for a given deck section. Up to 3 deck sections supported. Based on standard 5.5 inch deck boards. Fraction Calculator (Sliderule version): Very cool method of adding and subtracting fractions without entering any numbers. Fraction Calculator (Numeric): Add fractions including whole numbers. Fraction to Decimal & Millimeter Converter Length Conversions: Most common conversions for Woodworking Proportional Calculator: Turn big woodworking projects into little woodworking projects or little woodworking projects into big woodworking projects while maintaining exact proportions. Very handy for enlarging or reducing woodworking dimensions proportionally. Golden Ratio: Calculates the Golden Ratio for any given size to find the most pleasing proportion for your Woodworking projects! Nominal to Actual Size: Shows the exact measurements of wood based on it's nominal size. Also includes millimeter size. Screw Size Chart: Handy reference chart that includes Gauge, Head-Bore, Shank and Pilot hole sizes for hardwood and software. Nail Size Chart Handy reference chart for typical nail sizes. Joint Types: Very handy visual reference for the most common types of joints used in woodworking. Wood Types: Very hand visual reference for different types of wood. If you have a sample, send it to us and we'll add it to the list. Knock-down Sawhorse: Plans for building a quick knock-down Sawhorse from a 2x4 and a 1x4. Includes an Outfeeder Attachment plan as well. You can have the WoodMaster app send these plans to your Email address in PDF format. Knockdown Workbench: Plans for building a quick knock-down Workbench from a single 4x8 sheet of plywood. You can have the WoodMaster app send these plans to your Email address in PDF format. Woodworking Project Planner PDF file: A very handy blank Woodworking Project Planner Form. WoodMaster can Email you a Project Planner form that you can print out and use for your next project. The Project Planner form is set up with the most typical information for creating a woodworking project. If you have other planner form ideas, send them to us and we'll include them in a future version. You can have the WoodMaster app send this Project Planner to your Email address in PDF format. (Please note that this is not an interactive form (like a database) but a simple form that you can print out and fill in for your projects. We do plan to build an interactive Project Planner that you can fill out right in the app and then send it to your Email address. Stay tuned!) We hope that you find WoodMaster as valuable and time-saving as we have!
Grindcalculator
This tool simplifies knife sharpening by calculating the correct angle, eliminating the need for manual marking. Save custom sharpening angles and grinding wheel dimensions for consistent results across various brands and types of sharpening tools.
- Precise angle calculation
- Eliminates manual marking
- Save custom angles
- Save grinding wheel dimensions
- Supports all grinder brands
- Offline functionality
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The sharpening calculator is the perfect tool for sharpening knives. Especially when sharpening knives, it is important that the correct angle is resharpened. Most manufacturers, such as Tormek, Einhell, Scheppach, Record Power and many others supply an angle gauge specially designed for the machine. It takes a lot of practice to set the machine correctly with the gauge in order to be able to sharpen the correct sharpening angle on the knife or any other sharpening piece. Professionals often mark their phase to adjust the toolbar to the correct height. We developed the sharpening calculator app to make it easier to sharpen or sharpen knives and, above all, to get a consistently good sharpening result. The annoying phase marking is no longer necessary. Just like the complicated application of the angle gauge to the clamped sanding pad and the adjustment of the toolbar. There is almost no limit to the detection of grinders, grinding wheels and grinding pieces. Grinding pieces are, for example, kitchen knives, wood chisels or planer knives. Everything that can be ground with a wet grinding machine. After the app has been installed, the basic dimensions for the top toolbar, the front bar and, if available, the front base must be entered as described in our tutorial. The values can be adjusted at any time if you have measured yourself. The grinding wheels can either be saved or adjusted again for each grinding process. Here it is important that CBN wheels, for example, always have the same diameter, but wet grinding stones lose diameter through use. This value must be adjusted before grinding. The grinding calculator is suitable for probably every grinding machine from all manufacturers. Even individual structures can be used. Many app users have bought various grinding wheels from, for example, grinding junkies. The grinding calculator also works perfectly for this. With some polishing wheels, an angle correction can be stored so that polishing works even better. If you have recurring sharpening pieces such as kitchen knives, it is possible to save them with the respective sharpening angle. This eliminates the need to measure the angle again when resharpening and everything goes much faster. The grinding calculator is now also available for the iPad. All functions can be used. If you allow access to the iCloud, then all entries are synchronized between the devices. This means that all devices, grinding wheels and grinding pieces are synchronized on all devices used such as iPhone and iPad. This process is also the only thing for which the grinding computer needs an internet connection. Otherwise, the app works anytime, anywhere, even without an active internet connection. With family sharing, each user has their own database. It is currently not possible to share your own devices between users. Further features are described on our website https://www.grindcalculator.de. The procedure is described in detail in the operating instructions, which can be found under the URL https://www.grindcalculator.de/tutorials/operation-manual.
Screenshots
Verdict
The clearest difference is review sentiment: Grindcalculator at 85% against WoodMaster's 15%. Grindcalculator also leads on update cadence (every 4 days vs every 2 months) and price ($6.99 vs $7.99). WoodMaster's advantage is chart position (#190 vs unranked) and iOS requirement (11.0 vs 26.0). On ads, in-app purchases, monetization model 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
WoodMaster costs $7.99 and Grindcalculator $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WoodMaster ships an update every 2 months, Grindcalculator every 4 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.
| Parameter | WoodMaster | Grindcalculator |
|---|---|---|
| Price | $7.99 | $6.99 — better |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 15.4% of reviews | 84.6% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #190 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | John Lullie | RoWo UG |
Customer experience
WoodMaster
Grindcalculator
In-app purchases
WoodMaster
No in-app purchases
Grindcalculator
No in-app purchases
Questions
Is WoodMaster free?
Is Grindcalculator free?
Do WoodMaster or Grindcalculator have ads?
Which is updated more often, WoodMaster or Grindcalculator?
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