ODE Solver vs Exponential & Log Calculator
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ODE Solver
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ODE Solver β Solve ordinary differential equations with ease. β’ Solve systems of ODEs with initial boundary conditions using the 4th-order Runge-Kutta method. β’ View results in interactive plots and lists, and export via email. β’ Enter variables easily using the β$β 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 β’ Supports a full set of operators (+, -, *, /, **) and functions (sqrt, log, ln, exp). β’ Extensive trigonometric functions including sin, cos, tan, their inverses, reciprocals, and hyperbolic variations. β’ Built-in constants: Ο, Ο/2, Ο/4, e. β’ Smart entry fields: β’ Background changes red/green to highlight unpaired/paired parentheses. β’ Recognizes errors and displays warnings. β’ Custom keypad and cursor arrows for smooth formula editing. Perfect for engineers, students, and researchers who need fast, reliable ODE solutions on the go.
Exponential & Log Calculator
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Finish homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter parameters and see their effect on the graph β from shifts and scaling to domain, roots, and inverse function. HOW IT WORKS Enter your values in the correct fields and get started. Youβll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We donβt need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - Diagram showing the effect of all parameters on the graph - Curated learning videos - Feedback on incorrect inputs - Manage your own solutions - App introduction CONTACT Questions and feedback via Discord or directly in the app review.
Screenshots
Verdict
The clearest difference is price: Exponential & Log Calculator at Free against ODE Solver's $2.99. Exponential & Log Calculator also leads on update cadence (every 3 weeks vs every 8 months). ODE Solver's advantage is in-app purchases (none vs 8) and iOS requirement (13.0 vs 15.0). On ads 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
Exponential & Log Calculator is free to download; ODE Solver costs $2.99 up front. Exponential & Log Calculator sells 8 one-off in-app purchases. ODE Solver asks for nothing beyond the download.
ODE Solver ships an update every 8 months, Exponential & Log Calculator every 3 weeks. The most recent releases landed on September 17, 2026 and August 20, 2026 respectively.
| Parameter | ODE Solver | Exponential & Log Calculator |
|---|---|---|
| Price | $2.99 | Free β better |
| Update frequency | Every 8 months | Every 3 weeks β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 13.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 4 MB | 183 MB |
| Age rating | 4+ | 4+ |
| Developer | DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI | Glindemann, Sennoun, Langer GbR |
In-app purchases
ODE Solver
No in-app purchases
Exponential & Log Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
Questions
Is ODE Solver free?
Is Exponential & Log Calculator free?
Do ODE Solver or Exponential & Log Calculator have ads?
Which is updated more often, ODE Solver or Exponential & Log Calculator?
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