Comparison

CalcBoard vs Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CalcBoard

Perform multiple calculations simultaneously on one screen, compare prices side-by-side, and access various modes like scientific and programmer. This ad-free utility offers precise results and stores your data locally.

Highlights
  • Multiple independent calculator panels
  • Side-by-side price comparison
  • Scientific, programmer, and unit converter modes
  • Visible expression history
  • Shared value tray for chaining calculations
  • Named variables for complex formulas
  • Ad-free and no tracking
Features
Read full description

CalcBoard is a calculator with no ads, no subscriptions, and no tracking. Compare prices side by side, run multiple calculations at once, and get precise results — without a single pop-up interrupting your math. NO ADS. NO SUBSCRIPTIONS. EVER. CalcBoard will never interrupt your calculations with pop-ups, banners, or full-screen ads. Premium features are available through a single one-time purchase — no monthly charges, no recurring fees. COMPARE PRICES SIDE BY SIDE Shopping for the best deal? Open two calculators on the same screen and compare unit prices, discounts, or totals without switching back and forth. CalcBoard is the fastest way to figure out which option actually saves you money. MULTIPLE CALCULATORS, ONE SCREEN Run up to eight independent calculator panels simultaneously. Compare prices, check homework, run different scenarios, or calculate tips for a split bill — all without losing your place. SEE YOUR WORK Every expression stays visible as you type — no more guessing what you entered. Every calculation is saved automatically; bookmark and label the important ones, and with Premium search your full history and export it to CSV. FOUR POWERFUL MODES • Basic — Clean, fast arithmetic for everyday math • Scientific — Trig, logs, exponents, and advanced functions • Programmer — Hex, binary, octal, and decimal shown at the same time, with bitwise operations • Unit Converter — 79 units across 10 categories: length, mass, temperature, area, speed, time, data, volume, energy, pressure SHARED VALUE TRAY Push any result to the shared value tray and pull it into another panel. Chain calculations across panels without retyping numbers. NAMED VARIABLES Type tax=0.0825 once, then use price*tax in any panel. Your variables persist between sessions and work in every calculator mode. INSTANT ACCESS FROM CONTROL CENTER (iOS) Add CalcBoard to your iPhone's Control Center and launch it in a single tap from any screen — no hunting through your home screen. Open Settings → Control Center to add the CalcBoard control. PRECISE RESULTS CalcBoard uses arbitrary-precision decimal arithmetic. No floating-point rounding errors. 0.1 + 0.2 = 0.3, exactly. YOUR DATA STAYS ON YOUR DEVICE No ad SDKs, no analytics trackers, no unnecessary permissions. Your calculations are stored locally and never leave your device. DESIGNED FOR EVERYONE • VoiceOver and TalkBack labels on every key • Light and dark themes with 8 color options and 6 button styles • Large touch targets and haptic feedback on every button • Full iPad support with Split View and hardware keyboards FREE TO START, PAY ONCE TO UNLOCK Two calculator panels and basic mode are free, forever. One purchase unlocks everything — scientific mode, programmer mode, full unit converter, extra panels, shared value tray, full history with search and export, themes, and more. No subscriptions. No recurring charges.

About

Calculator

Read full description

Calculator: Math & Converter is a powerful all-in-one calculator app designed for everyday calculations, advanced scientific math, unit conversions, and financial planning. Simple, fast, and accurate — everything you need in one smart app. Simple & Scientific Calculator • Basic calculator for daily use • Advanced scientific calculator functions • Clean and user-friendly interface • Fast and accurate results Unit Converter Convert units instantly across multiple categories: • Temperature • Weight • Length • Volume • Speed • Time • Fuel • Energy • Pressure • Currency Converter Finance Calculators Plan smarter with built-in financial tools: • EMI Calculator • Loan Calculator • SIP Calculator • GST Calculator • Investment Calculator • Savings Calculator Utility Calculators • Age • Date • Discount Additional Features • Calculation History • Light & Dark Theme Support • Smooth & Modern Design This app contains subscription Monthly pro at $1.99 and Yearly pro at $9.99 to use ads free versions of the premium app which can cancel anytime. To learn about our privacy policy, please visit: https://bhaskarrao2209.blogspot.com/2025/12/privacy-policy.html For our terms of use, please visit: https://bhaskarrao2209.blogspot.com/2025/12/terms-of-service.html Calculator: Math & Converter - Fast, Accurate & Powerful Calculation Tools.

Screenshots

CalcBoard4 screens
Calculator4 screens

Verdict

The call

The clearest difference is device support: CalcBoard at 2 against Calculator's —. On price, update cadence, in-app purchases and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CalcBoard sells 1 one-off in-app purchase and Calculator sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 5, 2026.

Scorecard1 real difference · 8 level
CalcBoard versus Calculator: the parameters behind the verdict, then further details
ParameterCalcBoardCalculator
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 3 months
AdsNo—
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — better—
Requires iOS16.015.0 — better
Further details — not scored
Size50 MB29 MB
Age rating4+4+
DeveloperColby ClarkBhaskar Rao

In-app purchases

1 purchases

CalcBoard

One-time1
  • CalcBoard Premium$2.99
2 purchases

Calculator

Subscriptions2
  • Monthly$1.991 Month
  • Yearly$9.991 Year

Questions

Is CalcBoard free?
CalcBoard is free to download, with in-app purchases available.
Is Calculator free?
Calculator is free to download, with in-app purchases available.
Which is updated more often, CalcBoard or Calculator?
CalcBoard ships an update every 3 months, and Calculator every 3 months. Most recently, CalcBoard was updated on November 5, 2026 and Calculator on November 5, 2026.

Other comparisons