A PCalc Alternative With a Different Idea

The architectural difference

PCalc is one extremely capable calculator. CalcBoard is a workspace of up to 8 independent calculators — each with its own mode (basic, scientific, programmer, converter), connected by a shared value tray and global named variables. The question isn't “which has more functions” — it's whether your work involves one calculation at a time or several.

Where PCalc is the better answer

An honest comparison has to include this. PCalc has been developed continuously since the late 1990s, and that shows in depth CalcBoard does not have: RPN entry, extensive customisation of layout and themes, an established Apple Watch and widget presence, and a constant-and-conversion library built over decades. If you want RPN, or you have muscle memory built on PCalc's layout, that is a genuine reason to stay — CalcBoard offers neither.

The case for CalcBoard is narrower and structural: several independent calculators visible at once, with values passed between them. If the thing you keep hitting is "I need to hold two numbers and one calculator only holds one", that is the gap being filled. If you have never hit that, PCalc's depth is likely worth more to you.

On price

CalcBoard is free to download, with a single $2.99 unlock and no subscription. That is our own number and it is the one we can stand behind. PCalc is a paid app with its own add-ons, and its pricing has changed over the years and varies by store region — so rather than quote a figure that may already be stale, check its current App Store listing. Compare the totals, including any add-ons, against a one-time $2.99.

What matters more than the gap is the shape: neither app charges a subscription. This is a one-time-purchase comparison on both sides, which is increasingly rare in calculator apps and a good reason to consider either over a rental.

Competitive details on this page were verified September 2026. PCalc is a long-standing, well-regarded app and this page is not an argument that it is worse — see below for which workflow suits which.

Pick by workflow

• Choose CalcBoard if your real problem is parallel calculations — comparisons, convert-then-compute chains, hex beside decimal — if you want exact decimal arithmetic for money, or if a one-time $2.99 with a genuinely usable free tier suits you better than paying up front. Free to try with 2 panels and no ads.
• Choose PCalc for RPN, a paper tape, or an Apple Watch calculator. It is the canonical iOS power calculator, polished since 1992, and worth its price if those are what you need.

Frequently Asked Questions