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GulfSums vs CalcSpan

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

GulfSums compared with CalcSpan
DetailGulfSums logo GulfSumsCalcSpan logo CalcSpan
What it doesMoney maths for the UAE & Gulf, done right. Date, deadline and time calculators with visible assumptions and sources
StageNot given Not given
FoundedNot given Not given
Based inAE US
Pricing modelFree Free
PricingNot given Not given
Key features
  • UAE Gratuity Calculator for end-of-service pay under Federal Decree-Law 33/2021
  • Dubai Mortgage Calculator with down payment and all fees included
  • Gold price tracker for Dubai updated hourly
  • Exchange rates for AED to INR, PKR and 20+ currencies with 1-year charts
  • Prayer times for Dubai, Abu Dhabi, Sharjah, Riyadh and 15+ Gulf cities
  • UAE Corporate Tax Calculator with 0% to 9% rates and Small Business Relief to 2029
  • Rent vs Buy Calculator for Dubai comparing lifetime costs
  • DEWA Bill Calculator for Dubai electricity and water costs
  • Zakat Calculator based on live gold and silver prices
  • Loan Calculator for flat vs reducing balance rates with APR conversion
  • 184 calculators across 53 categories
  • Shows counting rules and assumptions with each result
  • Local-first processing with no data sent to servers
  • Holiday and weekend calendar selection
  • Business day counting
  • Date arithmetic (add or subtract days, weeks, months, years)
  • Sleep cycle planner with NIH-based 80-100 minute cycles
  • Time zone conversion with DST handling
  • Save results as images or add to calendar
  • Schengen visa 90/180 day rolling window auditing
What makes it different
  • All calculations run entirely in your browser with no files or personal data sent to servers
  • Rates and rules are kept current with official budgets, tariff notifications and regulatory changes
  • Built on official UAE and Saudi laws including Federal Decree-Law 33/2021 and Central Bank limits
  • Completely free with no sign-ups required, supported by advertising
  • Shows the source and counting rule beside every answer
  • No sign-up or account required to use any calculator
  • All inputs stay in your browser for privacy
  • Comprehensive coverage across 53 life and work categories
  • Higher-risk calculators include prompts to verify with professionals
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

5 details filled in for both companies.

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