Best Complexity Apps & Games

142+ iOS apps & games curated and reviewed

4.4 avg rating
17 free apps & games
Updated September 2026

From beginner-friendly picks to power-user tools, our complexity list covers 142+ iPhone apps and games updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Complexity Apps & Games (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Perplexity - AI Search & ChatPerplexity - AI Search & ChatFree4.8★ (506K)NoYesSep 2026
2Computational ComplexityComputational ComplexityFree5.0★ (4)NoNoMay 2026
3Complexity managementComplexity managementFreeNoNoMay 2026
4Try ComplexityTry ComplexityFree5.0★ (2)NoNoMay 2026
5Systems Thinking DailySystems Thinking Daily$0.99NoNoSep 2026
6Game of Life AIGame of Life AI$0.99NoNoJul 2026
7NKS Explorer 2022NKS Explorer 2022Free4.0★ (3)NoNoMay 2026
8Lichen: Big-O AlgorithmsLichen: Big-O AlgorithmsFreeNoNoJun 2026

Top Picks for Complexity

Perplexity - AI Search & Chat#1

Perplexity - AI Search & Chat by Perplexity AI, Inc.

Ask. Research. Trusted Answers
Editor's Choice
📊 Productivity
4.8😊(506K ratings)
FreeIn-App Purchases
#6in Productivity
Perplexity - AI Search & Chat screenshot 1
Perplexity - AI Search & Chat screenshot 2
Perplexity - AI Search & Chat screenshot 3
Perplexity - AI Search & Chat screenshot 4
Perplexity - AI Search & Chat screenshot 5
Perplexity - AI Search & Chat screenshot 6

Get accurate, source-backed answers to any question with this AI-powered search and chat tool. It leverages top AI models for deep research, drafting emails, and more, syncing across devices. Discover new information and organize your findings in a personal library.

What We Love

  • 🚀 Saves time, fast and efficient
  • 🔍 Comprehensive and detailed answers
  • 📚 Provides sources and citations
  • 🤖 Excellent AI-powered search
  • 🧠 Helpful for research and learning
  • 🔢 Accurate mathematical and technical information
  • 🤝 Personalized and contextual responses

Room to Improve

  • 🐛 Occasional bugs and glitches
  • 🔒 Restrictions on VPN usage
  • 💰 Expensive subscription
  • 🤖 Inconsistent or biased responses
  • 🖥️ Subpar mobile app experience compared to web version

More Complexity apps to explore

FAQ about Complexity

What are the best complexity apps & games for iPhone?
Perplexity - AI Search & Chat tops our complexity apps & games ranking as of September 2026, with a 4.8-star average from 506K App Store ratings, and it's free to download.
Yes — 17 of the top complexity apps & games we rank are free to download, including Perplexity - AI Search & Chat and Computational Complexity.
Perplexity - AI Search & Chat has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 142+ complexity apps & games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides accurate answers to any question, backed by sources and citations. It leverages advanced AI models for deep research, allows for conversational follow-ups, and includes an AI assistant for tasks like drafting emails and scheduling.
Key features include AI-powered search with cited sources, guided deep research, thread follow-ups for deeper understanding, an AI assistant for various tasks, voice search, and a personal library to curate discoveries.

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