51+ iOS apps & games curated and reviewed
The best unnecessary knowledge apps on iPhone average 4.5★ across 51+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
Discover thousands of fascinating and often surprising facts across 18 diverse categories. Save your favorites and learn trivia that has even appeared on popular game shows. Expand your general knowledge with this engaging educational app.
Discover a vast collection of over 2,100 intriguing and often amusing facts across 18 diverse categories. Learn about everything from internet passwords to medical terms and historical trivia. Save your favorite facts for easy access.
This reading and learning app uses extremely short, fragmented content to help users quickly gain knowledge across all industries. Its unique no-category, random reading mode encourages exploration beyond familiar topics, breaking cognitive barriers and enriching conversation. Content is refined for easy understanding and practical application.
This AI-powered learning companion helps you capture, summarize, and retain important ideas. It uses smart review intervals to ensure knowledge sticks, fostering deeper understanding for lifelong learners. Turn consumed information into lasting comprehension.
Explore the vast knowledge of Wikipedia directly through a dedicated application. Search for articles, learn new things daily, and access unbiased information curated by a global community. It serves as an excellent educational companion for seeking truth and expanding understanding.
Discover a new interesting fact daily with verifiable references. This app delivers curated educational content to expand your knowledge base every 24 hours.
Discover over 2,000 bizarre, funny, and utterly absurd facts and trivia. Scroll through an endless feed of pointless knowledge, random wisdom, and quirky insights perfect for quick entertainment during breaks or commutes.
An incremental game where your character learns facts, conducts research, and boosts their IQ. Progress continues even when offline, offering hundreds of upgrades and a prestige system. Discover over 700 real-world facts across eight subjects.
This app helps you retain information by periodically sending you notifications of facts you've saved. It's designed to combat forgetting and improve general knowledge through spaced repetition.
This app is a gamified platform for sharing information, aggregating news, videos, and opinions from diverse sources. It aims to foster the free exchange of knowledge.