79+ iOS apps & games curated and reviewed
Every iPhone needs a few good Rule of Three apps and games. We benchmark 79+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | Yes | No | May 2026 |
| 2 |  | Free | 5.0★ (4) | Yes | No | Jul 2026 |
| 3 |  | Free | — | Yes | No | May 2026 |
| 4 |  | Free | 2.3★ (4) | No | Yes | May 2026 |
| 5 |  | Free | — | No | Yes | May 2026 |
| 6 |  | Free | 4.8★ (20) | No | Yes | May 2026 |
| 7 |  | $3.99 | 4.0★ (1) | No | No | Jul 2026 |
| 8 |  | Free | — | No | Yes | Jul 2026 |
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.
Easily solve proportion problems with a simple and intuitive interface. This app uses the cross product method for quick and accurate calculations across various fields like finance and science. It's available offline and free to use.
Instantly calculate proportions and simplify everyday math problems with this app. It features a recipe scaler to adjust ingredients and a rule of three calculator for quick, accurate solutions. An intuitive Q&A tool also helps solve homework-style questions.
This utility app helps you solve problems involving ratios and proportions. It calculates an unknown number based on the relationship between two other known numbers.
This app simplifies product multiplication calculations with a quick ratio calculator. Easily copy results to your clipboard or save them for future reference in your history with a premium account.
This app helps you quickly solve for an unknown value in a proportion. Simply input three known numbers, and it will calculate the fourth, making ratio and proportion calculations effortless.
This utility app helps users perform quick calculations for everyday scenarios like fuel consumption, currency conversion, and grocery shopping. It features a simple interface with options for result display customization and supports dark/light modes.
Easily calculate the Rule of Three for everyday numerical problems. This app also helps you compare different values, measures, weights, and volumes.
Engage in a grand strategy wargame spanning human history, from ancient civilizations to the distant future. Employ military tactics and diplomacy to unify or conquer the world. Create your own historical scenarios and lead diverse civilizations to glory.
Engage in intense frontline combat as a commando in this free shooting game. Utilize modern weaponry and gun strike skills to overcome enemy forces and survive thrilling missions across various maps. Experience addictive FPS gameplay with challenging AI and an optional zombie survival mode.
This app offers a fast-paced party game where players must name three things within a five-second time limit. It supports up to 14 players and includes various modes suitable for all ages or more adventurous adult play. Keep track of scores and enjoy endless rounds of laughter and quick thinking.
Engage in intense zombie-slaying action with a vast arsenal of weapons and unique heroes. Team up with friends for cooperative gameplay and conquer challenging missions and boss battles.
This is a fast-paced party game for groups where players must answer a question with three answers in just five seconds. Fail to answer in time, and face a fun punishment. Includes normal and adult-themed card decks for varied party experiences.
Learn and practice sailing navigation rules with interactive 3D simulations. This app offers a didactic and fun approach to mastering collision avoidance and safe navigation on the water.
As the Angel of God, you decide the fate of souls on Judgment Day. Interrogate them, use a lie detector, and send them to heaven or hell based on their life's deeds. Featuring famous historical figures and ordinary people, the game offers engaging gameplay with unlockable content and mini-games.
Engage in a 3D pixel-style sandbox shooting game with real-time worldwide battles. Choose from various game modes, including PvP and PvE, or unleash your creativity with crafting custom maps and weapons. Build your arsenal and survive in this action-packed experience.