ODE vs DGKS
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!
DGKS
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The official app for the Congress of the Association of Structural Engineers of Serbia (DGKS), held 23β26 September 2026 at the Grand&Sky Hotel Tornik on Zlatibor. The full programme, everyone taking part, and every floor plan β in your pocket, in Serbian or English, with or without a connection. A PROGRAMME THAT STAYS CURRENT Browse all four congress days session by session: time, hall, chairs, and every presentation inside a session with its authors and speakers. Changes made to the official programme reach the app on their own. WHAT IS ON RIGHT NOW The home screen shows the sessions running at this moment, how long each has left, and what follows in the same hall. If the coffee break ran long, the app knows where to send you back. MY AGENDA Bookmark the sessions and presentations you do not want to miss and keep them in one place. Any session can go into your phone calendar in a single tap, with a reminder 15 minutes ahead. NOTES Write a note against any session while it runs. Notes stay on your device and are sent nowhere. PEOPLE AND PAPERS Search authors, speakers and chairs, open a profile with their affiliation and list of papers, or start from a paper and reach everyone behind it. One search covers people, papers and institutions at once. PARTNERS AND EXHIBITORS Partner and exhibitor profiles with stand numbers and their position on the hall plan, so you know exactly where to find them. MAPS AND VENUE Floor plans for the halls and the exhibition area, plus a venue map with directions handed off to the maps app you already use. NOTIFICATIONS Announcements from the organisers about programme changes, added sessions and deadlines β in the language you picked in the app. SURVEYS Fill in the organisers' surveys straight from the app, while the session is still fresh. WORKS WITHOUT A CONNECTION Content is stored on your device on first launch. When the hall Wi-Fi gives up, the programme, the participants and the maps are still there. TWO LANGUAGES, TWO THEMES Serbian and English, switched in one tap. Light and dark follow your phone's setting. NO ACCOUNT No sign-up, no password, no charge. Install it and use it.
Screenshots
Verdict
The clearest difference is ads: DGKS at none against ODE's shown. DGKS also leads on update cadence (fortnightly vs every 5 weeks). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
ODE ships an update every 5 weeks, DGKS fortnightly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | ODE | DGKS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Fortnightly β better |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 β better |
| Further details β not scored | ||
| Size | 41 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Om Prakash Chapagain | Nemanja Blagojevic |
In-app purchases
ODE
No in-app purchases
DGKS
No in-app purchases









