Best math apps for Android in 2026

Three math apps from the catalog are covered here, and each does a different job. Gauth is an AI homework helper, Google's Calculator handles everyday arithmetic and scientific functions, and Desmos Graphing Calculator plots equations.

All three are free to download, and none of them shows ads. Only Gauth has in-app purchases. Read the order below as a guide to purpose rather than a ranking of winners. Pick by the task in front of you: solving a problem, doing a sum, or drawing a graph.

Compare at a glance

Comparison table: Best math apps for Android in 2026
App Price Ads Google Play rating
GauthGoogle Play Free No ads 4.8
CalculatorGoogle Play Free No ads 4.3
Desmos Graphing CalculatorGoogle Play Free No ads 4.6

Ratings are Google Play ratings at the last data refresh.

Gauth: best for worked answers to homework problems

4.8 on Google Play Google Play

Gauth is made by GauthTech Pte. Ltd. and is the most study-oriented app of the three. Its feature list covers math word problems, algebra topics such as logarithms and complex numbers, functions from linear to inverse, and plane and solid geometry.

The version in the catalog is 2.11.0, updated November 2, 2026. It costs nothing to download and no ads are listed, but the app does include in-app purchases. The store text mentions a paid Pro plan for AI answers, though no price is given.

Pros

  • Google Play rating of 4.8
  • Covers word problems, algebra, functions and geometry
  • No ads listed

Cons

  • Includes in-app purchases
  • Catalog tier is C, not higher
  • Pro pricing varies by plan

Open Gauth

Calculator by Google: best for quick everyday sums

4.3 on Google Play Google Play

Calculator comes from Google LLC and does what the name says. It handles addition, subtraction, multiplication and division, and adds scientific operations including trigonometric, logarithmic and exponential functions.

Its audience is the largest of the three, though its 4.3 rating is the lowest here, and the gap is small. The catalog lists it as free, with no ads and no in-app purchases. The version varies by device, and the last update was September 16, 2026.

Pros

  • Over 1 billion installs on Google Play
  • Free, with no ads and no in-app purchases
  • Includes scientific functions

Cons

  • Lowest Google Play rating of the three at 4.3
  • Version number varies by device
  • No graphing or step-by-step help listed

Open Calculator

Desmos Graphing Calculator: best for plotting equations

4.6 on Google Play Google Play

Desmos Graphing Calculator is built by Desmos Inc and focuses on visual math. The catalog lists plotting functions, creating tables and adding sliders. The store text says it can plot equations from simple lines and parabolas up to derivatives and Fourier series.

The catalog version is 7.59.0.0, updated October 23, 2026. It is listed as free, with no ads and no in-app purchases. The feature list is short and centers on graphing, so it does not cover tasks such as solving word problems.

Pros

  • Plots equations, tables and sliders
  • Google Play rating of 4.6
  • Free, with no ads and no in-app purchases

Cons

  • Smallest install base of the three, over 10 million
  • Short feature list in the catalog data

Open Desmos Graphing Calculator

How we picked

Selection comes from catalog data only: installs and ratings on Google Play, update dates, price, ad and in-app purchase flags, and listed features. We did not test these apps hands-on, so this page makes no claims about speed, accuracy or ease of use. The order follows the catalog, not a quality ranking.

Questions and answers

Are these math apps free?

Yes. All three are free to download. Gauth also offers in-app purchases, while Calculator and Desmos Graphing Calculator have none.

Do any of these math apps show ads?

No. None of the three apps, Gauth, Calculator and Desmos Graphing Calculator, shows ads.

Which app suits graphing?

Desmos Graphing Calculator is the one built for graphing. It plots functions, creates tables and adds sliders. Its Google Play rating is 4.6.

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