Math Ref
by Happy Maau Studios, LLC
- Education
- Paid
- Zombie
- Small & simple · 93
- Rating
- 5.0
- 3 ratings · Mexico storefront
- Last update
- May 31, 2020
- Version 4.0
- Size
- 68 MB
- Category
- Education
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Math Ref is an award winning education app. Browse over 1,400 formulas, figures, and examples to help you with math, physics, chemistry and more. Tools such as a unit converter, quadratic solver, and triangle solver help you perform common calculations fast. So, if you're a student, teacher, or need math for work and want to try before you buy, this app is for you.
*Let us know what we can do to be a 5 star app! Email us at [email protected]*
"Math Ref is just an awesomely useful app for students, teachers, and anyone else who works with math and needs to do a lot of calculations." - FindmySoft.com
For awards, features, and mentions go to www.happymaau.com
Features:
-Tools: Ranging from Algebra to Physics
-Favorites: Easily save equations in groups
-Search: Easily find what you're looking for
-Print Support: Print equations or groups
-Editable Notes: Write what will help you best
-Searchable Prime Numbers: Now easily search through the first 10,000 primes
See our site www.happymaau.com for more information.
Current Main Categories:
-Algebra
-Geometry
-Trigonometry
-Linear Algebra
-Series & Sequences
-Derivatives
-Integration
-Table of Integrals
-Vector Calculus
-Differential Equations
-Discrete
-Probability and Statistics
-Physics
-Chemistry
-Algorithms
-Financial (includes Real Estate)
-Glossary
What’s new
Release notes for the latest version, as written by the developer.
- Dark mode!
- Bug fixes
Rank history
Daily position in the Niger charts. #1 is at the top.
- Best rank
- #17
- Current rank
- #17
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
93/100
Small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size100% · 20
Ratings: 3
- App size60% · 10
Size: 68 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #6, 41 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 4.0LatestReleased May 31, 2020