ODE Solver vs Equation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ODE Solver
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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.
Equation
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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
Verdict
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
ODE Solver costs $2.99 and Equation $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ODE Solver ships an update every 8 months, Equation monthly. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.
| Parameter | ODE Solver | Equation |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Update frequency | Every 8 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 4 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI | Om Prakash Chapagain |
In-app purchases
ODE Solver
No in-app purchases
Equation
No in-app purchases
Questions
Is ODE Solver free?
Is Equation free?
Do ODE Solver or Equation have ads?
Which is updated more often, ODE Solver or Equation?
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