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Best Complex Games

250+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated September 2026

Brain Games is the household name in complex games, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Complex Games (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Brain Games - Left vs RightBrain Games - Left vs RightFree4.7★ (25K)YesYesSep 2026
2Peak - Brain TrainingPeak - Brain TrainingFree4.7★ (146K)YesYesSep 2026
3Offline Games - No Wifi GamesOffline Games - No Wifi GamesFree4.8★ (366K)YesYesSep 2026
4Elevate - Brain Training GamesElevate - Brain Training GamesFree4.8★ (542K)YesYesSep 2026
5Abstract GamesAbstract GamesFree—NoNoMay 2026
6Daddy Long LegsDaddy Long LegsFree4.6★ (24K)YesYesSep 2026
7SpinStrike BallsSpinStrike BallsFree—NoNoJun 2026
8Jigsaw Puzzle GameJigsaw Puzzle GameFree4.5★ (7.5K)YesYesSep 2026

Top Picks for Complex Games

Brain Games - Left vs Right#1

Brain Games - Left vs Right by MochiBits, LLC

Mind Puzzles & Memory Training
Editor's Choice
🎮 Games
4.7😊(25K ratings)
FreeAdsIn-App Purchases
Brain Games - Left vs Right screenshot 1
Brain Games - Left vs Right screenshot 2
Brain Games - Left vs Right screenshot 3
Brain Games - Left vs Right screenshot 4
Brain Games - Left vs Right screenshot 5
Brain Games - Left vs Right screenshot 6

Enhance cognitive skills with daily brain training exercises. This app offers 50 mini-games across six categories to improve awareness, adaptability, reflex, reasoning, precision, and patience. Keep your mind sharp and prepared for daily challenges.

What We Love

  • 👍 Good brain exercises
  • 🤓 Helps improve memory and focus
  • 🧠 Challenges the mind
  • 💡 Variety of games and training
  • 🕰️ Gentle and not too difficult

Room to Improve

  • 🤑 Some features locked behind paywall
  • 🤔 Unclear instructions for certain games
  • 🎨 Difficulty distinguishing colors for colorblind users
  • 🔁 Constant review prompts can be annoying
Peak - Brain Training#2

Peak - Brain Training by Synaptic Labs

Better games for smarter minds
Strong Contender
📚 Education
4.7😐(146K ratings)
FreeAdsIn-App Purchases
Peak - Brain Training screenshot 1
Peak - Brain Training screenshot 2
Peak - Brain Training screenshot 3
Peak - Brain Training screenshot 4
Peak - Brain Training screenshot 5
Peak - Brain Training screenshot 6

Enhance your cognitive abilities with over 45 engaging games designed to improve memory, attention, problem-solving, and more. Track your progress with detailed insights and compete with friends. A free basic version is available, with an optional Pro upgrade for a full brain training experience.

What We Love

  • 💪 Challenging and engaging games
  • 🧠 Effective brain training
  • 📊 Detailed progress tracking
  • 🔍 Variety of game categories
  • 🤩 Enjoyable and fun to play

Room to Improve

  • 🔍 Limited free games
  • 💰 Expensive subscription
  • 🔁 Repetitive game content
  • 🐛 Bugs and glitches
  • 🤖 Inconsistent dictionary
  • 🤯 Frustrating scoring system
Offline Games - No Wifi Games#3

Offline Games - No Wifi Games by Moreno Maio

Classic brain train minigames
Worth Considering
🎮 Games
4.8😊(366K ratings)
FreeAdsIn-App Purchases
#49in Games
Offline Games - No Wifi Games screenshot 1
Offline Games - No Wifi Games screenshot 2
Offline Games - No Wifi Games screenshot 3
Offline Games - No Wifi Games screenshot 4
Offline Games - No Wifi Games screenshot 5
Offline Games - No Wifi Games screenshot 6

A diverse collection of over 20 classic and modern minigames designed for all ages. Enjoy brain-training puzzles, word games, strategy challenges, and multiplayer options without needing an internet connection. Perfect for keeping your mind sharp and entertained anytime, anywhere.

What We Love

  • 🚀 Offline play
  • 👍 Wide variety of games
  • 💡 Adjustable difficulty levels
  • 🚀 Smooth performance
  • 👍 Minimal ads when offline

Room to Improve

  • 🐛 Ads still present even after paying to remove them
  • 🐛 Certain games have bugs or glitches
  • 👎 Lack of instructions/tutorials for some games
  • 👎 Bot difficulty can be unbalanced in some games

More Complex Games apps to explore

FAQ about Complex Games

What are the best complex games for iPhone?
Brain Games - Left vs Right tops our complex games ranking as of September 2026, with a 4.7-star average from 25K App Store ratings, and it's free to download.
Yes — 20 of the top complex games we rank are free to download, including Brain Games - Left vs Right and Peak - Brain Training.
Brain Games - Left vs Right shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ complex games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app offers daily brain training through 50 mini-games divided into six categories. It aims to keep your mind sharp and improve skills like awareness, adaptability, reflex, reasoning, precision, and patience, preparing you for daily challenges.
Key features include 50 mini-games across six distinct categories (Awareness, Adaptability, Reflex, Reasoning, Precision, Patience), daily training sessions, and options for unlimited access through a VIP subscription. It focuses on enhancing cognitive functions.