Best Regra De 3 Apps & Games

245+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated November 2026

Every iPhone needs a few good regra de 3 apps and games. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Regra De 3 Apps & Games (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Rule of Three EasyRule of Three EasyFree5.0★ (1)YesNoSep 2026
2Compare - Rule of 3Compare - Rule of 3Free5.0★ (2)NoYesMay 2026
3Regra de 3 - OficialRegra de 3 - OficialFree—NoNoOct 2026
4Regra de 3 ProRegra de 3 ProFree——NoMay 2026
55 Second Rule - Group Guess5 Second Rule - Group GuessFree4.5★ (118)NoYesOct 2026
6Pro Billiards 3balls 4ballsPro Billiards 3balls 4ballsFree4.3★ (108)YesYesNov 2026
7Best Proportion CalcBest Proportion CalcFree5.0★ (5)YesNoOct 2026
8Aim3: Rule of Three FocusAim3: Rule of Three FocusFree—NoYesJun 2026

Top Picks for Regra De 3

Rule of Three Easy#1

Rule of Three Easy by Marcio Rocha da Rosa

Calculate cross-multiplication
Editor's Choice
🔧 Utilities
5.0(1 ratings)
FreeAds
Rule of Three Easy screenshot 1
Rule of Three Easy screenshot 2
Rule of Three Easy screenshot 3

This utility app simplifies calculations involving proportional quantities, commonly known as the rule of three or cross-multiplication. It helps solve everyday problems like adjusting recipe ingredients or calculating fuel consumption quickly and easily.

More Regra De 3 apps to explore

FAQ about Regra De 3

What are the best regra de 3 apps & games for iPhone?
Rule of Three Easy tops our regra de 3 apps & games ranking as of November 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 20 of the top regra de 3 apps & games we rank are free to download, including Rule of Three Easy and Compare - Rule of 3.
Rule of Three Easy shows ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 245+ regra de 3 apps & games on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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