Mencal Downloads & RevenueMencal - Mental Math Tricks · App Store
Mencal-数学心算技巧，速算口诀
Mencal - Mental Math Tricks is #188 in Education Paid in China and charting in 1 of 30 countries we track.
Updated 7 Nov 2026 · rankings refresh through the day
Developer军 曹
CategoryEducation
Price3.00 CNY
Released
Rating★ 4.7 (402)
Version4.2
Age rating4+
First seen by us
4 Oct 2026
4 Oct 2026Installs (est.)50k+ worldwide
Mencal - Mental Math Tricks update history & changes
Last change · 6 events since 26 Apr 2013Full timeline ↓⛔Back on the App Store⛔Removed from the App Store📈Entered the top 100🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 5 events in the last 12 months
- ⛔Mencal - Mental Math Tricks back on the App StoreLikely cause of the removal: a store guideline removal.
- ⛔Mencal - Mental Math Tricks removed from the App StoreThe store page stopped opening.
- 📈Mencal - Mental Math Tricks entered the top 100Top Paid · Education · CN
- 🆕Mencal - Mental Math Tricks first spotted by AppInsider#89 in Top Paid · Education · China
- 🆕Mencal - Mental Math Tricks released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
402 ratings
Measured
Best rank now
#188
Education PaidMeasured
Mencal - Mental Math Tricks on the App Store
App details
App ID
638609565
Publisher
军 曹
On the store since
Apr 2013
13 years on the store
Minimum OS
iOS 13.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase · Game Center
Content rating
4+
Languages
3
EN ZH ZH
Size
10 MB
Also listed in
Productivity
Mencal - Mental Math Tricks downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | EducationPaid | #188 |
Apps near Mencal - Mental Math Tricks on the chart
Education Paid, around #188.
Ratings
App Store, worldwide.
Rating
4.7 ★
402 ratings
Measured
Ratings
402
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.7★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Education apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Mencal - Mental Math Tricks
Mencal is an app help you expand your ability to mentally solve math problems. All of us can do simple addition and subtraction of one or two digit numbers without a calculator.Now mencal is here to kick that ability into overdrive.
Mencal provides you with lessons and simple tricks to allow you to: work with three digit numbers; fractions of different styles regardless if you are adding them or subtracting them; and finding sums with multiplication and division. Then it will test you on your grasp and knowledge of the methods you've learned.
• Example:
Same ten's digit,1's sum to 10
38×32=1216
①:Multiply tens place digit by itself plus 1
(3+1)×3=12
②:Add two zeros to the end of step①
12←00=1200
③:Multiply the two one's digits together
8×2=16
④:Add the results of step ②and③
1200+16=1216
• Quickly Square:
- Square numbers made up of 1's
- Square numbers made up of 3's
- Square numbers in the 90's
- Square numbers ten`s digit is 0
- Square a number ending in 25
- Square numbers made up of 6's
- Square numbers made up of 9's
- Square a number ending in 1
- Square a number ending in 5
- Square a number ending in 9
- Square numbers in the 10's
- Square numbers in the 40's
- Square numbers in the 50's
- Square numbers in the 500's
- Square numbers in the 600's
- Square numbers in the 700's
- Square numbers in the 800's
- Square numbers in the 900's
•Standard:
- Same ten's digit, 1's sum is 10
- Same ten's digit, 1's sum isn`t 10
- Same 1's digit, ten's digits sum is 10
- Same 1's digit, ten's digits sum isn`t 10
- two-digit number ab×cc (a+b=10)
- ab×ccc.....c (a+b=10)
- Multiply by 11
- 2-digit number if 1's digit is 1
- 2-digit number if tens place digit is 1
- 2-digit number ×2-digit number(universal)
- Multiply differing by 5
- Multiply differing by 6
- Multiply differing by 7
- Multiply differing by 8
- Multiply differing by 9
- Multiply differing by 10
- Multiply two numbers that in the 90‘s
- Two-digit number like ab+ba
- Three-digit number like abc+cba
- Two fractions like 1/a+1/b
- Two fractions like (a-1)/a + (b-1)/b
- Sum of first n odd numbers
- Sum of first n even numbers
- Two-digit number like ab-ba
- Three-digit number like abc-cba
- m-n if m+n=100,1000,10000...
- Two fractions like 1/a-1/b
- Two fractions like c/a-c/b
- Two fractions like (a-1)/a-(b-1)/b
- Divide any number by 5
- Divide any number by 25
- Divide any number by 125
- Divide any 3-figure number by 9
"This app rocks!! Great for Math Team practice!" - by Bubba Smith
"Great app, make me feel less stupid" - by Howie_Serious
"Its a useful app for anyone who wants to know the numbers deeper" - by sjzbim
"It's a good app for both kids and sometimes even adults" - by Willwang
Love mencal or have a question? We would love to hear your feedback! Contact us anytime at [email protected]
Mencal provides you with lessons and simple tricks to allow you to: work with three digit numbers; fractions of different styles regardless if you are adding them or subtracting them; and finding sums with multiplication and division. Then it will test you on your grasp and knowledge of the methods you've learned.
• Example:
Same ten's digit,1's sum to 10
38×32=1216
①:Multiply tens place digit by itself plus 1
(3+1)×3=12
②:Add two zeros to the end of step①
12←00=1200
③:Multiply the two one's digits together
8×2=16
④:Add the results of step ②and③
1200+16=1216
• Quickly Square:
- Square numbers made up of 1's
- Square numbers made up of 3's
- Square numbers in the 90's
- Square numbers ten`s digit is 0
- Square a number ending in 25
- Square numbers made up of 6's
- Square numbers made up of 9's
- Square a number ending in 1
- Square a number ending in 5
- Square a number ending in 9
- Square numbers in the 10's
- Square numbers in the 40's
- Square numbers in the 50's
- Square numbers in the 500's
- Square numbers in the 600's
- Square numbers in the 700's
- Square numbers in the 800's
- Square numbers in the 900's
•Standard:
- Same ten's digit, 1's sum is 10
- Same ten's digit, 1's sum isn`t 10
- Same 1's digit, ten's digits sum is 10
- Same 1's digit, ten's digits sum isn`t 10
- two-digit number ab×cc (a+b=10)
- ab×ccc.....c (a+b=10)
- Multiply by 11
- 2-digit number if 1's digit is 1
- 2-digit number if tens place digit is 1
- 2-digit number ×2-digit number(universal)
- Multiply differing by 5
- Multiply differing by 6
- Multiply differing by 7
- Multiply differing by 8
- Multiply differing by 9
- Multiply differing by 10
- Multiply two numbers that in the 90‘s
- Two-digit number like ab+ba
- Three-digit number like abc+cba
- Two fractions like 1/a+1/b
- Two fractions like (a-1)/a + (b-1)/b
- Sum of first n odd numbers
- Sum of first n even numbers
- Two-digit number like ab-ba
- Three-digit number like abc-cba
- m-n if m+n=100,1000,10000...
- Two fractions like 1/a-1/b
- Two fractions like c/a-c/b
- Two fractions like (a-1)/a-(b-1)/b
- Divide any number by 5
- Divide any number by 25
- Divide any number by 125
- Divide any 3-figure number by 9
"This app rocks!! Great for Math Team practice!" - by Bubba Smith
"Great app, make me feel less stupid" - by Howie_Serious
"Its a useful app for anyone who wants to know the numbers deeper" - by sjzbim
"It's a good app for both kids and sometimes even adults" - by Willwang
Love mencal or have a question? We would love to hear your feedback! Contact us anytime at [email protected]
Latest updates
4.2
1. Use iCloud to store learning data
2. Fix the issue that the learning data is not saved
3. Fix the issue that game center is not logged in
4. Fix horizontal screen display bug
