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Best 1/2/3 Sigma Apps & Games

9+ iOS apps & games curated and reviewed

4.1 avg rating
6 free apps & games
Updated June 2026

Every iPhone needs a few good 1/2/3 sigma apps. We benchmark 9+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for 1/2/3 Sigma

Block Craft 3D: Building Games#1

Block Craft 3D: Building Games by Wildlife Studios, Inc

City Blox Simulator
Editor's Choice
🎮 Games
4.7😊(789K ratings)
FreeAdsIn-App Purchases
#10in Games
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Block Craft 3D: Building Games screenshot 6

Build and expand your own village or create freely in an open world. Craft anything you can imagine and keep your villagers happy with your creations. This game offers hours of engaging and addictive building gameplay.

What We Love

  • 🎨 Excellent graphics and visuals
  • 🕹️ Fun and engaging gameplay
  • 🏘️ Ability to build and customize structures
  • 🐎 Enjoyable animal interactions

Room to Improve

  • 💰 Expensive in-app purchases
  • 🔒 Limited block/feature access without payment
  • 🕰️ Slow progression without watching ads
Akinator#2

Akinator by Elokence.com

Genie who can read your mind
Strong Contender
🎬 Entertainment
4.6😊(410K ratings)
FreeAdsIn-App Purchases
#82in Entertainment
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This app guesses characters, movies, animals, or objects you're thinking of by asking a series of questions. Challenge the genie, compete on leaderboards, and collect awards by guessing obscure characters. Play daily challenges and track your achievements.

What We Love

  • 🧠 Impressive AI that can guess almost anything
  • 🕹️ Fun and addictive gameplay
  • 🎨 Ability to customize the genie
  • 🔒 Child safety mode available

Room to Improve

  • 💰 Too many ads and in-app purchases
  • 🤔 Repetitive questions
  • 🤯 Creepy/invasive feeling of the AI
ASQ Six Sigma Yellow Belt Exam#3

ASQ Six Sigma Yellow Belt Exam by Exam Prep OU

CSSYB Test Prep Questions 2026
Worth Considering
📚 Education
5.0(2 ratings)
FreeIn-App Purchases
ASQ Six Sigma Yellow Belt Exam screenshot 1
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Prepare for the Six Sigma Yellow Belt certification exam with up-to-date practice tests and detailed explanations. Track your progress, customize study plans, and take simulated exams to build confidence. This mobile companion offers a comprehensive learning experience for aspiring professionals.

More 1/2/3 Sigma apps to explore

4
Statistical Process Control
Statistical Process Control
Statistical Process Control
by Fernando Haro Martinez
Free

This statistical tool helps users determine if a process is under control by generating control charts and calculating process capability. Simply enter numbers separated by spaces to see immediate results, including X-Bar, Range, Cp, and Cpk charts and metrics.

📊 Productivity
(2)
5
another numbers
another numbers
another numbers
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
$2.99
$3.99 | 25% OFF
📚 Education
(1)
6
Roblox
Roblox
Roblox
Play, Create, and Connect
Free

Explore millions of immersive 3D multiplayer experiences created by a global community. Play games, roleplay, compete, or create your own virtual worlds. Customize avatars and connect with friends across various devices.

Discover millions of user-created experiencesCreate and share your own gamesCustomize avatars with clothing and accessories
🎮 Games
(19M)
free with in-app purchases
7
Six Sigma Prep 2026: with AI
Six Sigma Prep 2026: with AI
Six Sigma Prep 2026: with AI
Belt Notes & DMAIC Mock Exams
$4.99
📚 Education
(0)
8
Six Sigma CSSGB Exam Prep 2026
Six Sigma CSSGB Exam Prep 2026
Six Sigma CSSGB Exam Prep 2026
by Yan Marinich
Free
📚 Education
(0)