Best Dual Calculator Apps

248+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

The best dual calculator apps on iPhone average 4.6★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Dual Calculator Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Dual-CalculatorDual-CalculatorFree—NoNoJul 2026
2Sales Tax Calculator: Dual POSSales Tax Calculator: Dual POSFree5.0★ (1)NoYesOct 2026
3Dual Calculator: Easy CalcDual Calculator: Easy CalcFree—YesNoOct 2026
4Calculator‰Calculator‰Free4.9★ (410K)YesNoNov 2026
5Calculator·Calculator·Free4.9★ (34K)YesYesNov 2026
6Calculator for iPad!Calculator for iPad!Free4.7★ (61K)NoNoNov 2026
7Calculator #Calculator #Free4.6★ (36K)YesYesNov 2026
8Calculator ×Calculator ×Free4.5★ (143)YesYesOct 2026

Top Picks for Dual Calculator

Sales Tax Calculator: Dual POS#2

Sales Tax Calculator: Dual POS by Long Nguyen

Business & Retail Tax Solution
Strong Contender
🔧 Utilities
5.0(1 ratings)
FreeIn-App Purchases
Sales Tax Calculator: Dual POS screenshot 1
Sales Tax Calculator: Dual POS screenshot 2
Sales Tax Calculator: Dual POS screenshot 3

This application provides a dual-sided calculator with two tax rate options, ideal for businesses. It features a reverse display for customers and allows for quick switching between different tax systems, enhancing transparency in transactions.

More Dual Calculator apps to explore

FAQ about Dual Calculator

Are there free dual calculator apps for iPhone?
Yes — 20 of the top dual calculator apps we rank are free to download, including Dual-Calculator and Sales Tax Calculator: Dual POS.
Dual-Calculator has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 248+ dual calculator apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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