Comparison

ODE Solver vs Equation

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ODE Solver

Features
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ODE Solver – Solve ordinary differential equations with ease. • Solve systems of ODEs with initial boundary conditions using the 4th-order Runge-Kutta method. • View results in interactive plots and lists, and export via email. • Enter variables easily using the ”$” prefix (e.g., $x, $u, $t) and let the app handle the calculations. Example: Typical Pendulum dx/dt = $u du/dt= -pi()**2/4*sin($x)-0.1*$u • Supports a full set of operators (+, -, *, /, **) and functions (sqrt, log, ln, exp). • Extensive trigonometric functions including sin, cos, tan, their inverses, reciprocals, and hyperbolic variations. • Built-in constants: π, π/2, π/4, e. • Smart entry fields: • Background changes red/green to highlight unpaired/paired parentheses. • Recognizes errors and displays warnings. • Custom keypad and cursor arrows for smooth formula editing. Perfect for engineers, students, and researchers who need fast, reliable ODE solutions on the go.

About

Equation

Features
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The EquationSolver is carefully designed to be a simple and elegant app. Easy to use, easy to understand, simple and effective It solves system of linear equations, simultaneous linear equations (no limit on the number of equations). It also teaches you the steps to solve such systems. To find a solution, it uses Matrix inversion method or LU decomposition method when inverse is not possible or complicated. The equations are beautifully presented in both: 1) Set of individual equations form 2) Matrix-vector product form. You can also share the beautifully written solution It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost. This is a perfect app if you are a student learning to solve these kind of equations. There is also a Study page to help you with learning some important linear algebra formulas. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!

Screenshots

ODE Solver4 screens
Equation4 screens

Verdict

The call

The clearest difference is update cadence: Equation at monthly against ODE Solver's every 8 months. Equation also leads on price ($1.99 vs $2.99). ODE Solver's advantage is iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

ODE Solver costs $2.99 and Equation $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ODE Solver ships an update every 8 months, Equation monthly. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 3 level
ODE Solver versus Equation: the parameters behind the verdict, then further details
ParameterODE SolverEquation
Price$2.99$1.99 — better
Update frequencyEvery 8 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.1
Further details — not scored
Size4 MB30 MB
Age rating4+4+
DeveloperDRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STIOm Prakash Chapagain

In-app purchases

None

ODE Solver

No in-app purchases

None

Equation

No in-app purchases

Questions

Is ODE Solver free?
ODE Solver costs $2.99, with no in-app purchases.
Is Equation free?
Equation costs $1.99, with no in-app purchases.
Do ODE Solver or Equation have ads?
Neither ODE Solver nor Equation shows ads.
Which is updated more often, ODE Solver or Equation?
ODE Solver ships an update every 8 months, and Equation monthly. Most recently, ODE Solver was updated on October 4, 2026 and Equation on October 11, 2026.

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