Calccis vs Lyestone
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Calccis
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Calccis is a reverse polish notation (RPN) calculator. It supports basic arithmetic, trigonometrical, logarithm and exponent calculations for real, fractional, and complex numbers. Degrees and radians can be used for trigonometrical functions. You can perform matrix calculations, too. There is an undo stack, which supports undoing and redoing the 100 latest operations. Calccis does not copy or mimic any existing physical calculators. However, the operation of the stack has been influenced by how the stack works in the 1990s Hewlett-Packard HP-48 family of calculators.
Lyestone
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Queue recipe snapshots at your own batch sizes, combine their oil requirements and compare the result with stock on hand. HOW IT WORKS 1. Open Batches, then Workshop. Choose Plan a batch and a saved recipe. 2. Set oil grams per batch and the number of batches, then save the plan. 3. Tap an oil to record current stock. Share the combined oil pick list. 4. Mark a plan complete to remove its demand, or reopen it later. Keep the recipe calculator, fat library, saved recipes, costing tools and poured-batch journal. Workshop snapshots remain stable when a saved recipe is edited. WHAT TO KNOW Workshop covers oils only. Lye, water, fragrance and additives are excluded; calculate and verify each recipe before making soap. Stock is manual and is not deducted automatically. Cure milestones measure elapsed time and do not certify safety. iPhone and iPad.
Screenshots
Verdict
The clearest difference is price: Calccis at Free against Lyestone's $0.99. Lyestone's advantage is update cadence (every 5 days vs every 3 weeks). On ads, in-app purchases, device support and iOS requirement 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
Calccis is free to download; Lyestone costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calccis ships an update every 3 weeks, Lyestone every 5 days. The most recent releases landed on September 12, 2026 and October 5, 2026 respectively.
| Parameter | Calccis | Lyestone |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Every 3 weeks | Every 5 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Jukka Aittola | Robert Corbin |
In-app purchases
Calccis
No in-app purchases
Lyestone
No in-app purchases









