CalcBoard / PCalc Alternative

A PCalc Alternative With a Different Idea

PCalc has earned nearly two decades of loyalty — RPN, deep customization, a legendary About screen. CalcBoard doesn't out-PCalc PCalc; it bets on a different architecture: many calculators at once instead of one powerful one.

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Respect first

PCalc ($9.99) is the canonical iOS power calculator: RPN mode, extensive conversions, programmer features, widgets, Apple Watch and Vision Pro apps, and relentless polish since 1992 (yes, 1992). If you want RPN or the deepest single-calculator feature set on iOS, PCalc is the answer and we'll say so plainly.

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.

PCalcCalcBoard
ArchitectureSingle calculator, deeply customizable2–8 simultaneous panels
RPN modeYes — a signature featureNo
Programmer featuresYesYes — 4 bases displayed simultaneously
Cross-calculation value sharingPaper tape / memoryShared tray (50 values) + named variables
ArithmeticFloating point (configurable display)Exact decimal (0.1 + 0.2 = 0.3)
Watch / Vision Pro appsYesNo (iPhone & iPad; runs on Apple Silicon Macs)
Price$9.99Free / $2.99 one-time

Pick by workflow

  • Choose PCalc for RPN, an Apple Watch calculator, or maximum single-calculator depth. It's worth its price.
  • Choose CalcBoard if your real problem is parallel calculations — comparisons, convert-then-compute chains, hex beside decimal — or you want a full-featured calculator for a third of the price, free to try with 2 panels and no ads.
Competitor details verified August 11, 2026 against each app's public App Store listing and documentation. Features and prices change — check the other app's current listing before deciding. Spot something out of date? Email [email protected] and we'll fix it.

Frequently Asked Questions

Is CalcBoard cheaper than PCalc?
Yes — CalcBoard is free with 2 panels and no ads; Premium is a one-time $2.99. PCalc is $9.99 (with a separate free Lite version). Both are one-time purchases, not subscriptions.
Does CalcBoard have RPN like PCalc?
No. CalcBoard uses standard algebraic entry with full expression editing, parentheses, and live result preview. If RPN is essential to you, PCalc remains the best choice on iOS.
What does CalcBoard offer that PCalc doesn't?
Multiple simultaneous calculator panels (up to 8), each in its own mode, with a shared value tray and global named variables connecting them — plus exact decimal arithmetic. PCalc is a single-calculator design.

Try the multi-panel approach free

Two panels, no ads, no account. If it clicks, Premium is $2.99 once.

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