Plottron vs ODE Solver +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Plottron
This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.
- 2D and 3D graphing
- Implicit graphing
- Complex number visualization
- Symbolic differentiation
- User-defined variables and functions
- Live evaluation
- Calculation history
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A graphing + scientific calculator. -2D and 3D graphing Graphs regular functions, parametric relations, and functions in polar/spherical coordinates. -Implicit graphing -Visualization of complex maps w=f(z) featuring domain coloring plots -For 2D functions: Info mode with tangent line and 2nd-order Taylor approximation Scientific calculator features: -User-defined variables and functions -Symbolic derivative (e.g.: D(x, sin(x)) -nCr, nPr, factorial -Complex numbers -Live evaluation (calculate as you type) -Calculation history -Probability density functions: Binomial, Normal (Gaussian) Examples: Implicit graph: cos(X)=sin(Y) Graph a parabola in Regular mode: X^2 Graph a circle in Parametric mode: cos(T);sin(T) Set a variable: X=5 Use a variable: X+4: 9 Define a function: f(X)=X+1 Use a defined function: f(2): 3 Symbolic derivative: D(X,sin(X)): cos(X) Complex magnitude plot in 3D Regular mode: abs(1/cos(X+Yi)) Notes: -Swipe left for settings. -Use semicolon (;) to separate functions in parametric relations. -Swipe down on keypad to show full history. Tap on answer to show keypad again.
ODE Solver +
This utility app calculates ordinary differential equations using the Runge-Kutta method. It offers a step width of 0.01 for its calculations.
- Ordinary differential equation calculation
- Runge-Kutta method
- Step width 0.01
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It is calculated using Runge-Kutta method (step width 0.01).
Screenshots
Verdict
The clearest difference is rating: Plottron at 4.8 against ODE Solver +'s 3.7. Plottron also leads on ads (none vs shown) and monetization model (free vs ad-supported). ODE Solver +'s advantage is update cadence (weekly vs every 5 months). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Plottron holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 12 and 3 respectively.
Plottron ships an update every 5 months, ODE Solver + weekly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.
| Parameter | Plottron | ODE Solver + |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (12 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | 3 |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Billy Lin | Takahiko Nakade |
Customer experience
Plottron
ODE Solver +
In-app purchases
Plottron
No in-app purchases
ODE Solver +
No in-app purchases
