PlasterCalculator vs Unit Conversion Calculator $
Price, ratings, monetisation and update history for both apps, side by side โ 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.
Unit Conversion Calculator $
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Convert measurements and currencies quickly with one practical, easy-to-use app. Unit Converter combines 14 measurement categories with live exchange rates, favorites, historical comparisons, and sharing tools for school, work, travel, cooking, and everyday tasks. MEASUREMENT CONVERSIONS Choose from 14 conversion categories: - Length: meters, kilometers, feet, inches, yards, miles, and more - Weight: kilograms, pounds, ounces, grams, tons, stones, and more - Temperature: Celsius, Fahrenheit, Kelvin, Rankine, and more - Speed: mph, km/h, knots, meters per second, feet per second, and more - Volume: liters, gallons, cubic meters, cups, pints, and more - Area: square meters, acres, hectares, square feet, square yards, and more - Pressure: PSI, bar, pascals, atmospheres, torr, and more - Cooking: cups, tablespoons, teaspoons, milliliters, fluid ounces, and more - Fuel consumption: mpg, km/L, L/100km, miles/L, and more - Angle: degrees, radians, gradians, minutes, seconds, and more - Force: newtons, pound-force, dynes, kiloponds, poundals, and more - Work and energy: joules, kilowatt-hours, calories, BTU, foot-pounds, and more - Power: watts, horsepower, BTU/hour, kilowatts, foot-pounds/minute, and more - Digital storage: bytes, KB, MB, GB, TB, and more CURRENCY CONVERTER - Convert between currencies using current exchange rates - Search currencies by code or English name - Swap source and destination currencies instantly - View the current unit rate and last-updated time - Compare today's rate with the rate from one month ago when historical data is available - Review related conversions for major currencies - Save up to 20 favorite currency pairs - Copy or share conversion results and rate reports - See when saved rates are being shown while offline DESIGNED FOR EVERYDAY USE - Fast, real-time calculation updates - Clear decimal precision for both large and small values - Light, dark, and system appearance options - Clean, modern interface - Metric and imperial units - Measurement conversions available without an internet connection - Saved currency rates available when a live refresh cannot be completed USEFUL FOR - Students and teachers - Engineers and scientists - Chefs and home cooks - DIY and construction projects - International travelers - Fitness and health calculations - Technology professionals - Anyone who needs a quick, dependable conversion Currency exchange rates require an internet connection for live updates. Historical data depends on availability from the exchange-rate provider. Saved rates are clearly identified and are never presented as newly fetched market data. Download Unit Converter for accurate measurement tools and convenient exchange-rate comparisons in one app. SUPPORT AND FEEDBACK We are always improving the app. Contact janogroupllc@gmail.com for assistance, feedback, or suggestions.
Screenshots
Verdict
The clearest difference is in-app purchases: Unit Conversion Calculator $ at none against PlasterCalculator's 1. Unit Conversion Calculator $ also leads on iOS requirement (13.0 vs 17.6). PlasterCalculator's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 9 months). On price and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. PlasterCalculator sells 1 one-off in-app purchase. Unit Conversion Calculator $ asks for nothing beyond the download.
PlasterCalculator ships an update every 3 weeks, Unit Conversion Calculator $ every 9 months. The most recent releases landed on August 31, 2026 and September 12, 2026 respectively.
| Parameter | PlasterCalculator | Unit Conversion Calculator $ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks โ better | Every 9 months |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 17.6 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 8 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Steve McCulloch | JanoGroup LLC |
In-app purchases
PlasterCalculator
- Donation$0.99
Unit Conversion Calculator $
No in-app purchases
Questions
Is PlasterCalculator free?
Is Unit Conversion Calculator $ free?
Do PlasterCalculator or Unit Conversion Calculator $ have ads?
Which is updated more often, PlasterCalculator or Unit Conversion Calculator $?
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