PlasterCalculator vs ClayMade
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PlasterCalculator
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Need a plaster mold to create your ceramic masterpiece? Do you need a simple plaster form suitable for a one-off project? Are you creating plaster slabs for drying wet clay or for a dampbox container? Plaster Calculator can help! It's easy to eye-ball the plaster/water ratio for a one-off or non-critical piece using the island method, such as for the bottom of a wetbox. However, when making multi-part molds or a series of identical molds, the proper ratio is critical to ensure consistency across molds and in the resulting ceramic piece. Plaster Calculator can help you determine the amount of plaster and water for your mix, ensuring consistent results using many of the common plaster types available, including #1 Pottery Plaster, Hydrostone, Ultracal, and several others. Key Features: Calculate the volume of your plaster need based on the dimensions of the most common forms in centimeters, inches, or feet. Forms include square/rectangle (cuboid), cylinder, sphere/half-sphere, pyramid (3 and 4 sided), and cone, as-well-as allowing you to enter an already known volume amount. Additionally, can calculate the volume of a void space within the plaster mold, such as when making a mold from an existing object, the void volume amount will be removed from the main volume. Save your mix calculation for later referral. Allows measurement of plaster and water in pounds/ounces or grams, the default can be changed in the Settings. Calculates a typical volume reduction of 30% (as recommended by some sources). This value can be changed between 0 (for no adjustment) and 45%, the default value can be changed in the Settings. Provides plaster weight variations -/+5 points from the standard consistency for the plaster. For example, the standard consistency of #1 Pottery Plaster is 70, variations are provided from 65 to 75 supplying the plaster amount needed for that consistency. Allows changing of the plaster type prior to saving mix, default plaster type can be changed in the Settings. Allows optional donation to developer - please do :) Please add a review :) Version 3.0 Changes =============== Revamped interface to use buttons for volume calculation type instead of swiping. Removed interface color options, now only system light and dark modes available. Removed animations on several UI elements. Ensure compatibility with iOS/iPad 26. The minimum iOS/iPad version is now 17.6. Various bug fixes, performance and interface improvements.
ClayMade
This app helps ceramic artists meticulously track their projects from raw clay to finished piece. It allows for detailed documentation of stages, materials, firings, and even time spent, with robust organizational and search features. Pro features offer deeper insights and workflow customization.
- Stage Tracking
- Flexible Configuration
- Piece Finishes Documentation
- Firing Details
- Time Tracker
- Rich Notes
- Shrinkage Calculator
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Capture every detail of your ceramic work from inspiration to completed piece. Track photos, stages, finishes, firings, and rich notes in one beautifully simple app. Sign in to sync your work across devices or keep it local on your device. FEATURES Cloud Sync – Sign in with Apple or Google to back up and access your pieces across all your devices. Stage Tracking – Capture a detailed record of each piece and its progression through your workflow. Moodboards – Collect and organize ideas and inspiration for upcoming pieces. Flexible Configuration – Customize stages, clay bodies, finishes, and more to match the way you work. Piece Quantity – Track multiple copies batch projects under a single piece. Piece Finishes – Document the surface treatments, application, areas, and notes used for each finish layer of you piece. Piece Firings – Add firing details including type, cone, atmosphere, and notes. Clay & Finished Weight – Record both starting clay weight and finished weight. Tags – Organize pieces into custom collections for easy browsing and filtering. Archive – Keep focus on active work by archiving older or completed pieces. Time Tracker – Log time spent per piece to help understand your effort and efficiency. Image Cropping - Use the crop editor to focus in on specific details or pieces within an image. Rich Notes – Format piece notes with headings, checklists, lists, and links. Check off tasks right along side of your pieces. Image Gallery – Browse all your piece photos in a full grid view. Data Backups – Your data protected. Back up and restore your data instantly any time you need to. Shrinkage Calculator – Estimate fired dimensions before or after the kiln. New Piece Workflow – Customize and reorder the steps shown when adding a new piece to match your process. Flexible Sorting – Sort by recently used, most used, or name across forms, clay bodies, tags, and more. Quick Actions – Move a piece to the next stage, add a photo, or duplicate it without leaving the list. Powerful Search – Find any piece by name, tag, clay body, stage, and more. Pull down on the home screen for instant access. Trash – Deleted pieces go to Trash first, so nothing is lost by accident. PRO FEATURES Sales – Add pieces for sale, set pricing and inventory, check out with discounts and sales tax, track transactions, and view trends sales insights. Bulk Editing – Long-press to select multiple pieces and apply actions all at once. Maker Insights – A personal dashboard showing your making trends, habits, and output over time. Sales Insights – A dashboard of revenue, best sellers, inventory sold, and trends across your completed sales. Firing Services – Add your studio or community firing pricing and estimate firing fees on each piece by weight, dimensions, shelf space, or flat rate. Cost Estimation – Estimate production cost per piece from your hourly rate, time tracked, and firing fees. Product Export – Create product CSV to import into online stores (Squarespace, Shopify, Etsy, or Big Cartel) Line Sheet – Export a customized PDF of your products to share with shops, galleries, and wholesale buyers. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: ClayMade at every 6 days against PlasterCalculator's every 3 weeks. On price, ads, in-app purchases 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
Both are free to download. PlasterCalculator sells 1 one-off in-app purchase and ClayMade sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
PlasterCalculator ships an update every 3 weeks, ClayMade every 6 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.
| Parameter | PlasterCalculator | ClayMade |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (62 ratings) — better |
| Positive reviews | — | 71.9% of reviews |
| Number of ratings | — | 62 — better |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 8 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | Steve McCulloch | Brian Cerceo |
In-app purchases
PlasterCalculator
- Donation$0.99
ClayMade
- Pro Plan – 1 month14 Days trial$6.991 Month
- Pro Plan – 1 year14 Days trial$59.991 Year
Questions
Is PlasterCalculator free?
Is ClayMade free?
Do PlasterCalculator or ClayMade have ads?
Which is updated more often, PlasterCalculator or ClayMade?
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