Comparison

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.

Head to head
About

ODE Solver

Features
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ODE Solver – 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 ”$” 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.

About

Exponential & Log Calculator

Features
Read full description

Finish homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter parameters and see their effect on the graph – from shifts and scaling to domain, roots, and inverse function. HOW IT WORKS Enter your values in the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t 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

ODE Solver4 screens
Exponential & Log Calculator4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences Β· 2 level
ODE Solver versus Exponential & Log Calculator: the parameters behind the verdict, then further details
ParameterODE SolverExponential & Log Calculator
Price$2.99Free β€” better
Update frequencyEvery 8 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS13.0 β€” better15.0
Further details β€” not scored
Size4 MB183 MB
Age rating4+4+
DeveloperDRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STIGlindemann, Sennoun, Langer GbR

In-app purchases

None

ODE Solver

No in-app purchases

8 purchases

Exponential & Log Calculator

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +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?
ODE Solver costs $2.99, with no in-app purchases.
Is Exponential & Log Calculator free?
Exponential & Log Calculator is free to download, with in-app purchases available.
Do ODE Solver or Exponential & Log Calculator have ads?
Neither ODE Solver nor Exponential & Log Calculator shows ads.
Which is updated more often, ODE Solver or Exponential & Log Calculator?
ODE Solver ships an update every 8 months, and Exponential & Log Calculator every 3 weeks. Most recently, ODE Solver was updated on September 17, 2026 and Exponential & Log Calculator on August 20, 2026.

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