ODE vs NumTest
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ODE
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The ODESolverIntegrator is a simple but elegant app to find the integral of ODEs. You can solve (find the integral of) nonlinear ODEs. You can reduce the higher order ODE to a set of first order ODEs. You can solve (find the integral of) linear ODEs in the form of αΊ = Ax + Bu; y = Cx + Du. This app uses Runge-Kutta 4th order algorithm to solve the ODEs. Once the ODEs are solved, a beautiful interactive graph for each ODE's is created that you can share with other or save it locally. The reduced ODE's equations are presented beautifully in the math-equation format. You can compute definite integral (single, double, tripple). It uses the midpoint method. 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 app also has a Study page to help you learn important integration rules like, power rule, product rule, ect. This app is perfect for students learning calculus. Sharpen you brain by using this app and learning about the calculus. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!
NumTest
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The primary objective of this application is to provide researchers with a mechanism for testing and comparing the performance of their numerical solvers. This application includes algorithms capable of benchmarking values on a diverse range of scientific numerical problems. It is important to note that the results presented are for comparison purposes only and are not guaranteed to be correct. We will be adding more topics in the future. Please encourage us by sharing this app with your friends and colleagues. Your support is greatly appreciated! If you have any questions or feedback, please contact us at daniel.hadush@gmail.com. Thank you for your interest!
Screenshots
Verdict
The clearest difference is in-app purchases: ODE at none against NumTest's 1. ODE also leads on update cadence (every 5 weeks vs every 11 months) and iOS requirement (15.1 vs 18.6). NumTest's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. NumTest sells 1 one-off in-app purchase. ODE asks for nothing beyond the download.
ODE ships an update every 5 weeks, NumTest every 11 months. The most recent releases landed on September 18, 2026 and October 1, 2026 respectively.
| Parameter | ODE | NumTest |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks β better | Every 11 months |
| Ads | Yes | No β better |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 β better | 18.6 |
| Further details β not scored | ||
| Size | 41 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Om Prakash Chapagain | Daniel Hadush |
In-app purchases
ODE
No in-app purchases
NumTest
- buyfile$0.99









