The Math Keyboard
by Daniel Soffer
- Utilities
- Paid
- Zombie
- Rating
- 0.0
- 0 ratings · Burkina Faso storefront
- Last update
- Oct 22, 2021
- Version 3.0.2
- Size
- 52 MB
- Category
- Utilities
- 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.
The Math Keyboard gives you quick access directly in your keyboard to hundreds of useful Math and Scientific characters.
Simply open of the Math Keyboard in any App and type math symbols anywhere you like. Done. Easy!
Characters include :
- Numbers
- Trigonometric Symbols
- Algebra Symbols
- Alphabetical Symbols
What our users are saying about The Math Keyboard :
"Super awesome keyboard, has a lot of versatility that you will find usage for everything"
"Amazing! Pretty simple, makes typing math easy"
What’s new
Release notes for the latest version, as written by the developer.
Minor bug fixes
Rank history
Daily position in the Armenia charts. #1 is at the top.
- Best rank
- #4
- Current rank
- #4
- Days charting
- 2 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
82/100
Not flagged as small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size– · 20
No data, weight redistributed
- App size60% · 10
Size: 52 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #4, 9 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 3.0.2LatestReleased Oct 22, 2021