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Added October 29, 2026

SmartCalc

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About the product

SmartCalc.top is a free browser-based calculator platform with more than 200 practical calculators for finance, health, education, mathematics, conversions, time and date, and home projects. It provides quick answers for mortgages, loans, BMI, age, grades, percentages, unit conversions, date differences, and other everyday calculations without an account.
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For product owners

Promote SmartCalc

Every listing gets one post to our X and Threads followers. It is seen once, then the traffic stops. Promotion keeps SmartCalc in front of people instead.

  • Back in the X and Threads rotation: SmartCalc gets posted again instead of once.
  • A promoted slot on the AppRater homepage, carrying a Promoted badge.
  • A direct link to SmartCalc from a DR41 site (Ahrefs Domain Rating), with no redirect in between.
  • A labelled spot in the weekly email to AppRater subscribers, one promoted app per issue.
  • Stays on the first screen however old the listing is, while new submissions push everything else down.

Quarterly promotion

$35USD every 3 months

Card, Apple Pay and more, through Whop. Starts straight away.

  • Cancel any time from the Whop account you paid with, or email [email protected] and we will do it.
  • The promotion starts straight away, no waiting on us.
  • Whop handles the checkout. We never see your card.

Questions first? Email [email protected].

For ownersOwn SmartCalc? You can add a deal, post a role or put the badge on your own site.

Add a deal →Post a role →Get the badge →

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