Best 28*12 Apps & Games

31+ iOS apps & games curated and reviewed

4.5 avg rating
19 free apps & games
Updated June 2026

Out of 31+ 28*12 apps and games on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top 28*12 Apps & Games (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Math 24 - Mental Math CardsMath 24 - Mental Math CardsFree4.7★ (1.6K)YesYesJul 2026
2Grade 12 MathematicsGrade 12 MathematicsFreeYesYesMay 2026
3SumadSumadFree3.8★ (46)NoYesJul 2026
4爱星盘爱星盘Free4.6★ (2.6K)YesYesJul 2026
5Mathematics TodayMathematics TodayFree4.0★ (3)NoYesMay 2026
6Prime FactorizationPrime FactorizationFree4.4★ (5)NoNoMay 2026
7Numbers.io 3DNumbers.io 3DFree4.0★ (41)YesYesJul 2026
8腕能精灵腕能精灵Free5.0★ (1)YesYesMay 2026

Top Picks for 28*12

Math 24 - Mental Math Cards#1

Math 24 - Mental Math Cards by Peikun Duan

A math puzzle of 4 cards
Editor's Choice
🎮 Games
4.7😊(1.6K ratings)
FreeAdsIn-App Purchases
Math 24 - Mental Math Cards screenshot 1
Math 24 - Mental Math Cards screenshot 2
Math 24 - Mental Math Cards screenshot 3
Math 24 - Mental Math Cards screenshot 4

This app offers a classic arithmetic puzzle where players combine four numbers using basic operations to reach 24. It features progressive difficulty levels, a timed challenge mode, and integration with Game Center for leaderboards and achievements.

What We Love

  • 🚀 Fun and challenging
  • 👍 Helps improve math skills
  • 👍 Great brain training
  • 👍 Convenient and accessible

Room to Improve

  • 🙄 Too many ads
  • 🐛 Bugs and issues with ads
  • 🙄 Levels too difficult
Grade 12 Mathematics#2

Grade 12 Mathematics by Tshepo Sadiki

Mathematics made easy
Strong Contender
📚 Education
0.0(0 ratings)
FreeAdsIn-App Purchases
Grade 12 Mathematics screenshot 1
Grade 12 Mathematics screenshot 2
Grade 12 Mathematics screenshot 3
Grade 12 Mathematics screenshot 4
Grade 12 Mathematics screenshot 5
Grade 12 Mathematics screenshot 6

Access Grade 12 Mathematics past exam papers and marking guidelines from 2014 to 2023. Includes theory summaries, tutoring service information, and downloadable resources. Designed to help students prepare for their final exams.

Sumad#3

Sumad by SUMAD PLUS LIMITED

Worth Considering
🎬 Entertainment
3.8(46 ratings)
FreeIn-App Purchases
Sumad screenshot 1
Sumad screenshot 2
Sumad screenshot 3
Sumad screenshot 4

Stream movies, TV series, live channels, and exclusive content on demand. This platform offers a wide variety of entertainment accessible across multiple devices, including mobile, web, and smart TVs.

More 28*12 apps to explore

4
爱星盘
爱星盘
爱星盘
by 邓 振波
Free
🌟 Lifestyle
(2.6K)
5
Mathematics Today
Mathematics Today
Mathematics Today
Enjoy reading on the go!
Free

This app offers in-depth articles on mathematical concepts, theories, and problem-solving. It also explores the history and culture of mathematics, making it a valuable resource for students and enthusiasts alike. Stay updated with the latest trends and prepare for competitive exams.

In-depth mathematical concepts and theoriesProblem-solving puzzles and challengesMathematical history and culture articles
📰 Magazines & Newspapers
(3)
subscription
6
Prime Factorization
Prime Factorization
Prime Factorization
by Sohei Mori
Free

This utility app breaks down integers into their prime factors. It also calculates the number and sum of divisors, lists all divisors, and identifies specific number types like prime, perfect, abundant, or deficient.

Prime factorization of integersCalculate number of divisorsSum of divisors calculation
🔧 Utilities
(5)
free
7
Numbers.io 3D
Numbers.io 3D
Numbers.io 3D
Increase your numbers!
Free

A casual game where players grow larger numbers by absorbing smaller ones and avoid being eliminated. The goal is to become the biggest number on the arena.

Absorb smaller numbers to growCompete in an arenaSimple and addictive gameplay
🎮 Games
(41)
free with in-app purchases
8
腕能精灵
腕能精灵
腕能精灵
by 鑫 白
Free
🔧 Utilities
(1)
9
LumenLED
LumenLED
LumenLED
by Jesse Radatti
Free
🔧 Utilities
(0)
10
Pixel Demon Eyes
Pixel Demon Eyes
Pixel Demon Eyes
by Shenzhen Hard Creation Electronic Technology Co., Ltd
Free
🎬 Entertainment
(0)
11
Dozecal
Dozecal
Dozecal
Duodecimal calculator
Free

This educational calculator promotes the use of Base Twelve (duodecimal) in math and science. It offers standard mathematical functions in both duodecimal and decimal modes, with automatic conversion between them. It utilizes Reverse Polish Notation (RPN) for calculations.

Duodecimal and Decimal modesAutomatic mode conversionRPN (Reverse Polish Notation) input
🔧 Utilities
(4)
free
12
15 Puzzle Polygon
15 Puzzle Polygon
15 Puzzle Polygon
Triangle, Hexagon, Fixed Block
Free

Engage your mind with a variety of logic and puzzle games. Explore unique variations of classic puzzles like the 15-puzzle, tile matching, and color-based challenges. Offers numerous levels and modes to test your thinking skills.

Extended 15-puzzle variationsHexagonal and triangular boardsTile matching with various shapes
📚 Education
(3)
free with in-app purchases
13
Large Math
Large Math
Large Math
Factorial and more
Free
📚 Education
(0)
14
PulseWarden
PulseWarden
PulseWarden
Real-time HR, health in hand
Free

Monitor your heart rate instantly with one touch or manually record vital health data like blood pressure and oxygen levels. Visualize trends with charts and utilize guided breathing exercises for stress relief. This app serves as a personal health diary, linking daily life scenarios to your health metrics.

One-touch heart rate measurementManual recording of blood pressure and oxygenTrend visualization with curve charts
🔧 Utilities
(1)
free with in-app purchases
15
ADAY: Shared Photo Calendar
ADAY: Shared Photo Calendar
ADAY: Shared Photo Calendar
Stylish and cute design
Free

This app organizes your daily life by linking photos to calendar events, creating a visual diary of your memories. Easily share plans and photos with others, and access advanced features with a premium subscription.

Link photos to calendar eventsAutomatic photo organizationEasy event and photo sharing
🌟 Lifestyle
(0)
freemium
16
2 Digit Multiplication
2 Digit Multiplication
2 Digit Multiplication
by Yasuyoshi Ota
$1.99
📚 Education
(0)
17
Luminoid
Luminoid
Luminoid
by Glowy Zoey, LLC
Free

Control your wearable LED products with a mobile app. Customize colors, effects, and brightness to match your style. Sync lights with music and save favorite looks for any occasion.

24 customizable LED effectsColor, speed, and brightness adjustment12 dynamic music sync modes
🔧 Utilities
(1)
free
18
Zedcon
Zedcon
Zedcon
by Zedfy GmbH
Free
🔧 Utilities
(0)
19
RGB DIY Light
RGB DIY Light
RGB DIY Light
easy control rgb colored light
Free
🔧 Utilities
(0)
20
bivi
bivi
bivi
Learn languages
Free
📚 Education
(0)

FAQ about 28*12

What are the best 28*12 apps & games for iPhone?
Math 24 - Mental Math Cards tops our 28*12 apps & games ranking as of June 2026, with a 4.7-star average from 1.6K App Store ratings, and it's free to download.
Yes — 19 of the top 28*12 apps & games we rank are free to download, including Math 24 - Mental Math Cards and Grade 12 Mathematics.
Math 24 - Mental Math Cards shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 31+ 28*12 apps & games on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Math 24 - Mental Math Cards is a classical math puzzle game designed to enhance arithmetic abilities and mental math skills. Players use four given numbers and basic arithmetic operations (+, -, ×, ÷) to achieve a result of 24.
The objective is to combine four numbers using addition, subtraction, multiplication, and division to equal 24. For example, using the numbers 2, 0, 4, and 8, one solution is (2+0)×(4+8)=24.